Diseased animal cells may produce molecules that activate death cascades to kill the cells in a controlled manner. Neighboring healthy cells will also die because d. the death molecule passes through gap junctions.
Gap junctions are the intracellular connections that make it possible for neighboring cells to communicate with each other. The cytoplasms of the neighboring cells are able to exchange ions, molecules, impulses, etc through these gap junctions. Hence, these gap junctions are extremely important for the transfer of material between neighborly cells.
However, if healthy cells form gap junctions with diseased cells that form death molecules to kill themselves, then the death molecules can pass through the gap junctions to the healthy cells as well. As a result, the neighboring healthy cells will also die.
Although a part of your question is missing, you might be referring to this question:
Diseased animal cells may produce molecules that activate death cascades to kill the cells in a controlled manner. Why would neighboring healthy cells also die?
a.The death molecule is passed through desmosomes.
b.The death molecule is passed through plasmodesmata.
c.The death molecule disrupts the extracellular matrix.
d.The death molecule passes through gap junctions.
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The introductory passage discusses the importance of being able to study anme in a pure culture instead of in the consortium that exists in nature. Many bacteria exist in biofilms in nature. Based on the information in the passage and in the chapter, is it possible to create a pure culture of a species that normally exists in biofilms?.
Yes, as a biofilm can include a single species and numerous species can have planktonic growth or reside there.
Plankton- Microalgae, sometimes referred to as phytoplankton, are comparable to photosynthetic organisms in that they have chlorophyll and need sunlight to survive and develop. The upper ocean, where sunlight may reach the water, is where the majority of phytoplankton floats since they are buoyant. The growth of plankton is known as Planktonic growth.
Biofilm- An extracellular polymeric material matrix surrounds an assembly of surface-associated microbial cells that is known as a biofilm. Van Leeuwenhoek is credited with discovering microbial biofilms because he discovered bacteria on tooth surfaces using his crude microscopes.
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The prokaryotic nucleoid is not surrounded by a.....
Responses
A plasmid
B cytoplasm
C membrane
D flagella
Answer: I think it's D, but it may be A
Explanation:
Will U and T ever appear in the same strand together?
When incorporated into a polypeptide chain not at the n or c terminus, _______ would make the charge of the polypeptide more positive.
Answer:The answer is arginine.
Explanation:please give brainliest if right.
Which process would be least affected if a root cell experienced a reduction in atp supply?
The process would be least affected if a root cell experienced a reduction in ATP supply the movement of water into the cortex.
Between the epidermis and the vascular, or conducting, tissues of stems and roots, in plants, the cortex is a tissue made up of unspecialized cells. In addition to storing carbohydrates, cortical cells may also contain resins, latex, essential oils, and tannins.Active transport involves the movement of chemicals from a low-concentration location to a high-concentration area in opposition to the concentration gradient. Being "active" means that this process uses energy. Passive transport is in opposition to it.They are rarely branched and are just lateral expansions of a single cell. They are located in the root's maturation area. By increasing the root surface area to volume ratio, which enables the root hair cell to take in more water, root hair cells boost plant water absorption.To learn more about cortex.
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What impact does photosynthesis have on atmospheric carbon dioxide? Does it use or produce carbon dioxide?
Answer:
As photosynthetic organisms, plants take up atmospheric CO2, chemically reducing the carbon. This represents not only an acquisition of stored chemical energy for the plant but also provides the carbon skeletons for the organic molecules that make up a plant's structure. Plants use photosynthesis to capture carbon dioxide and then release half of it into the atmosphere through respiration. Plants also release oxygen into the atmosphere through photosynthesis.
Explanation:
If you hold a salty cracker in your mouth long enough, it will begin to taste sweet. What is responsible for this change in taste?.
The salty cracker begins to taste sweet when kept in the mouth long enough because the cracker actually consists of carbohydrates that are broken down in the mouth by the action of salivary enzymes, forming sugars like glucose or sucrose.
Carbohydrates are the biomacromolecules. These are of three types: monosaccharides, disaccharides and polysaccharides. The examples are glucose, sucrose, starch, etc. The monosaccharides and disaccharides consists of sugars but polysaccharides do not contain any sugars.
Salivary enzymes are the digestive enzymes released in the mouth. These enzymes perform the breakdown of polymers made up of glucose or other monosaccharides as a monomer.
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After a natural disaster occurs in a healthy ecosystem, secondary succession will cause the ecosystem to return to it’s original ________?
Your answer should be: climax community.
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After a natural disaster occurs in a healthy ecosystem, secondary succession will cause the ecosystem to return to its original climax community.
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1
Which of the following is a symptom of cataracts?
Blurred vision
O "Halos" around lights
Experiencing double vision in one eye
All of the above
Answer:
The symptoms of cataracts are blurred or glory vision, Halos around light and double vision in one eye.
Therefore the answer is all of the above
john and sue are expecting a child, but are concerned about a rare autosomal recessive disease that is present in both of their families. in the pedigree, john is represented as individual iii‑11 and sue is represented as individual iii‑12; both are unaffected. john's sister, iii‑10, and sue's brother, iii‑13, both do not show evidence of the disease, but john's paternal grandmother and sue's maternal grandfather both had the disease. assign the appropriate symbol to each individual in the pedigree.
If he is a carrier of the gene, he may have received the disease allele from his mother, making him a carrier as well. received the allele from his mother. He received only one normal allele from his father.
Here is the family tree. I found exercises online.
Those without icons are II-5, II-6, II-8, III-10, III-11, III-12, III-13.
Her individual II-5 will be a half black/half white square. Square because the introductory text states that it is John's paternal grandmother (I-2) who has the disease. His mother contracted the disease, so she inevitably passed on an allele that was the disease allele, and his father did not have or exhibit the disease, so he was half black/half white. Yes, meaning that John's father (II-5) received only the normal allele.
Individual II-6 has a question mark in a circle. If John's father is individual II-5, she is John's mother, so circle. A question mark because there is no information about how her disease manifests itself in her.Her sister received two alleles for the disease.
Each her II-8 has a half black/half white circle. If her father is individual II-7 (square), she is Sue's mother, so circle. Because her father had the disease, he inevitably passed on an allele that was the disease allele, and her mother did not have the disease and showed no symptoms, so half black/half was white, and Sue's mother (II-8) received only one normal allele. .
The III-10 would have a circled question mark on it. She is a circle because, as said in the introduction, she is John's sister. Because we are unable to determine whether she carries all disease alleles or none at all, we have put a question mark beside her name. Since her mother is only a carrier of one disease gene, she might have inherited a disease allele from either her father or her mother; but, if her mother has the condition, she would unquestionably have inherited a disease allele from her mother and not from her father.
John, Individual III-11 has a question mark in the square. John is a man, so he is square. A question mark because we cannot determine whether he has the disease allele or no disease at all. From the introductory text, we conclude that he has no evidence of the disease, but the If he only has the allele, he may have acquired the disease allele from his father or mother. From his father if his mother is ill.
Sue, Individual III-12 has a question mark in a circle. Maru because it's a woman's Sue. A question mark because it is not possible to determine whether she has the disease allele or no disease at all. If she is a carrier, she may have received the disease allele from her mother, making her a carrier as well. She has a normal allele from her mother. She received her only one normal allele from her father.
Individuals III-13 are marked with a question mark in the square. According to the introductory text, he is Sue's brother, hence the square. A question mark because we cannot determine if he has the disease allele or not the disease at all.
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Please help!
the trait for blue eyes in humans is caused by a recessive allele. if this gene is named e, what is the genotype of a blue-eyed person?
1.) ee
2.) ee
3.) e
4.) ee
Answer: ee
Explanation:
just took the test :)
Answer: the order i have them in here may or may not have the same answers unless its genetic research quick check
1. A version of a gene is called a. answer allele
2. The trait for blue eyes in humans is caused by a recessive allele. If this gene is named capital e, what is the genotype of a blue-eyed person? answer ee lowercase ee not capital ee
3. Describe the relationships among genes, dna, and traits. answer Traits are determined by genes, which are composed of dna.
4. In mice, the gene for tail length has two alleles. A long tail is dominant to a short tail. If a long-tailed mouse that is heterozygous mates with a short-tailed mouse, what are the chances of having offspring with short tails? answer 50%
5. What is meant by a phenotype ratio in a Punnett square? answer the fraction of possible offspring that can be observed to have a trait
hope i helped
Explanation:
How do emission and reflection nebulae differ?(1 point)
Responses
contain remnants of stars
contain remnants of stars
interactions with light
interactions with light
the presence of young stars
the presence of young stars
hard line edges
hard line edges
An emission nebula generally glows because of the close by stars that emit mild or photons. This nebula is visible in a sparkling crimson shadeation. On the contrary, a mirrored image nebula, that is frequently visible in blue, truely displays the mild of the close by stars.
Emission nebulae have a tendency to be crimson in shadeation due to the abundance of hydrogen. Reflection Nebula - A mirrored image nebula differs from an emission nebula in that it does now no longer emit radiation of its own. It is a cloud of dirt and fueloline that displays the mild electricity from a close-by supermegacelebrity or institution of stars. Clouds of excessive temperature fueloline.
The atom withinside the cloud are energized through ultraviolet mild shape a close-by supermegacelebrity and emit radiation as they fall returned into decrease states. These nebulae are generally crimson due to the fact the essential emission line of hydrogen occurs to be crimson.
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How are brain and nerve cells function related to their structure?
Specialized projections called axons allow neurons to transmit electrical and chemical signals to other cells.
Are there any parts of the human body that get oxygen directly from the air and not from the blood?
Answer:
Cornea of the eye
Explanation:
It is the only part in human body which has no blood supply. It directly takes oxygen from the air.
Answer:
yes, there is a part of a human body that gets oxygen directly from the air and not from the blood is "THE CORNEA"
Collections of specialized cells and extracellular substances around them are known as a(n):_____.
Answer:
tissues
Explanation:
when the cell combined it make tissues that means they are specialized cells
the extracellular around them=====
the extracellular matrix of connective tissue is composed of ground substance and fiber
i think it help u
fimbriae and pili differ in that fimbriae and pili differ in that pili are used for transfer of dna and motility. pili are used to transfer dna. there are only one or two pili per cell. pili are used for motility. pili are used for attachment to surfaces.
Fimbriae and pili differ in that: (a) pili are used for transfer of DNA and motility.
Fimbriae are the structures used for attachment. These are long fragments that are proteinaceous in nature. Fimbriae play an important role in the synthesis of biofilms, thereby helping in colonization.
Pili are the short structures that appear hair-like on the surface of bacteria. Pili serve various purpose in the cell. These are: attachment, virulence, transfer of DNA, and movement. Pili also show antigenicity in the host's body. The pili used for the process of DNA transfer is also known as conjugative pili. This process is also called bacterial conjugation.
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is deficiency of vitamin is called beriberi
Answer:Beriberi is a disease in which the body does not have enough thiamine (vitamin B1).
Explanation:
Answer:
yes deficiency of vitamin is called beriberi
To deter- mine how long an SPF will protect a person from burning in the Sun, multi- ply the amount of time the person can spend in the Sun before starting to burn by the SPF rating. If an individual who usually burns in 10 min uses a product with an SPF of 15, how long will the protection last?
Answer:
Take the time you would normally burn in the sun without protection, 20 minutes will normally produce redness on a light skinned individual. Multiply this number by the SPF of your product. Example: with an SPF 15 x 20 minutes of sun time = 300 … is how many minutes you can stay in the sun without burning.
studying patterns of disease prevalence at different spatial and temporal scales offers a glimpse into both the potential for and results of coevolution of hosts and their parasites.
Studying patterns of disease prevalence at different spatial and temporal scales offers a glimpse into both the potential for and results of coevolution of hosts and their parasites.
What is starch ?A polymeric carbohydrate called starch, also known as amylum, is made up of a lot of glucose units connected by glycosidic linkages. The majority of green plants synthesize this polysaccharide as a form of energy storage. It is the most prevalent type of carbohydrate consumed by people worldwide and is present in significant proportions in common foods like wheat, potatoes, maize (corn), rice, and cassava (manioc).
Pure starch is a powder that is white, odorless, tasteless, and insoluble in alcohol or cold water. It is made up of the branching amylopectin and the linear and helical amylose molecules. Starch typically comprises 20 to 25% amylose and 75 to 80% amylopectin by weight, depending on the plant. Animals store their energy in glycogen, which is a more intricately branched form of amylopectin.
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a single stranded dna (oligonucleotides) can hybridize with (select one): select one: a. complementary dna b. complementary rna c. complementary protein d. a and b
A single stranded DNA (oligonucleotides) can hybridize with complementary RNA.
What is oligonucleotides?
Short DNA or RNA molecules called oligonucleotides have several uses in forensic science, genetic research, and testing. These tiny pieces of nucleic acids, which are frequently produced in the lab by solid-phase chemical synthesis and can be produced as single-stranded molecules with any user-specified sequence, are essential for artificial gene synthesis, polymerase chain reaction (PCR), DNA sequencing, molecular cloning, and the use of molecular probes. Ordinarily, oligonucleotides can be found in nature as small RNA molecules that control the expression of genes or as intermediates in the decay of bigger nucleic acid molecules.
Antisense oligonucleotides are single-stranded DNA sequences that bind to complementary locations in mRNAs and prevent translation by encouraging RNase H to cleave the RNA strand in mRNA-DNA hybrids. They are typically 15 to 25 nucleotides in length.
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pls i need correct answer :(
Of the five characteristics of living things, which one is required for the species to survive but does not have to apply to an individual?(1 point)
response to the environment
use of energy to function
reproduction
growth and change over a life cycle
Answer:
Reproduction
Explanation:
A species cannot survive if there is no reproduction but the individual can survive.
hep asap will give brainliest
Answer:
A Punnett Square is a helpful tool that helps to predict the variations and probabilities that can come from cross breeding. This includes predicting crossing plants, animals, even humans with each other for the first one.
cystic fibrosis and sickle cell anemia for the second one.
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got the image from the internet
People see bullfighting as many different things. which of these does carmen not mention? a sport an art form a game a form of cruelty to animals
These does carmen not mention a sport an art form a game a form of cruelty to animals.
Given name Carmen has two distinct antecedents. Its primary roots are Spanish and Italian, and it is a shortened form of the Hebrew word for a mountain range in northern Israel, Karmel, which is used for Carmel and Carmelo.The Latin word carmen, which means "ode" or "poem" and is also the source of the English term "charm," is where the second derivation comes from. The word Carmenta, which derives from this root, is Latin in origin, as is the portion of archaic Latin known as "Carmen Saliare." The name is unisex in English, although it is typically given to women in Spanish, Portuguese, Catalan, French, and Romanian; it is frequently given to men in Italian.To learn more about Carmen.
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3. A cork has a mass of 3 grams and a volume of 16 cm 3 . Calculate the densit
Answer: 0.1875
Explanation: i just did D = M/V so 3/16 and got 0.1875
a twin brother is in need of a kidney transplant. doctors are happy to have located his identical twin, and they prep him for surgery. this is best explained because please choose the correct answer from the following choices, and then select the submit answer button. answer choices strangely enough, most monozygotic twins tend to live close by or within a 500-mile radius of each other. they both have the same blood type and doctors will need plenty of reserves. the twins share exactly the same genetic material. time is of the essence when locating a replacement organ for transplant.
This is BEST explained because: one monozygotic twin can donate an organ for surgical implantation in the other twin because they are likely to be the best match.
A programmed cell is what?Programmed cell death refers to when a cell perishes as a result of internal mechanisms like apoptosis or autophagy. A biological process called PCD usually has positive effects on an organism for the whole of its life. For instance, while a human fetus develops, cells between the fingers undergo apoptosis, which makes the digits stand out. PCD plays crucial functions in the growth of both plant and animal tissue.
Autophagy and apoptosis are examples of programmed cell death. Necrosis is the death of a cell brought on by external stimuli such as damage or infection. It can take many different forms. Necrosis was once thought to be an aphysiological phenomena.
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Explain how reducing the amount of soda you drink could reduce the amount of fossil fuels
that are consumed as well as the amount of aluminum that is consume
Fossil fuels are created from decaying plants and animals. These fuels can be burned to produce energy and are found in the crust of the Earth. Fossil fuels include things like coal, oil, and natural gas.
Explain how reducing the amount of soda you drink could reduce the amount of fossil fuels that are consumed as well as the amount of aluminum that is consume.
The breakdown of plants and animals results in the production of fossil fuels. The Earth's crust, which is made up primarily of the elements oxygen, carbon, and hydrogen, contains the fuels.
There are several environmental effects of fossil fuels. The alteration of an ecosystem brought about by lessening the usage of fossil fuels is one of the effects.
The ecology found along the coast and farther out in the ocean is referred to as the ocean ecosystem. Fossil fuels are one of several factors that have an effect on the ocean ecology.
Climate change and the influx of pollutants into the water can be stopped if fossil fuel use is decreased. Fossil fuel emissions make the ocean poisonous and acidic, which makes it difficult for creatures to live.
Thus, things that upset the ecosystem are necessary for life to survive.
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Predict what happens to cell membrane composition in the brain of a wolf living in yellowstone national park with hot summers and cool winters.
The cell membrane fatty acid composition will not change between season.
Which of the are following are most likely to diffuse by the cell membrane?
Phospholipids are made up of a single phosphate molecule that is often attached to the polar head group that defines the lipid group as well as a glycerol molecule bound to two lipid tails. These molecules have hydrophilic heads on a hydrophobic body.
It is likely that CO2 travels across the lipid bilayer far more quickly than any other molecule of these. Since CO2 only consists of three relatively tiny atoms and lacks a dipole moment, it is naturally predisposed to pass through the membrane quickly. There is no charge separation and a linear geometry since the two oxygens are joined by a double bond. The other compounds described are either significantly larger or both.
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The number of fatty acids in cell membranes won't alter with the seasons.
What are cell membranes?All cells contain a membrane, known as the cell membrane or the plasma membrane, which isolates the interior of the cell from the external world.
A lipid bilayer that is semipermeable makes up the cell membrane.
The cell membrane controls the movement of materials into and out of the cell.
Fat-based lipids and 3. 33proteins make up the majority of the components of cell membranes. Phospholipids and sterols make up the majority of the two types of membrane lipids.
It offers defense against the outside environment for the cell and its cellular components.
The flow of molecules into and out of the cell is controlled by its selective permeability.
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A mutation has developed that has deleted a gene responsible for the formation of vesicles at the trans end of the golgi apparatus. What effect will this have on the function of lysosomes?.
A mutation has developed that has deleted a gene responsible for the formation of vesicles at the trans end of the Golgi apparatus. as a result lysosomes will not be produced.
Lysosomes are formed due to the fusion of vesicles from the trans end of the Golgi. Addresses sequences are recognized by the sorting system and it directs them to produce lysosomes.
So the production of lysosomes will be stopped if a mutation deleted a gene responsible for the formation of vesicles at the trans end of the Golgi apparatus.
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If a plant's stomata were temporarily inhibited from opening during the daytime, how would this affect the plant?
The plant would be unable to perform cellular respiration, and cells would become starved for energy.Carbon dioxide wanted for photosynthesis is acquired thru open plant stomata. At night time, whilst daylight is not to be had and photosynthesis isn't occurring, stomata near. This closure prevents water from escaping thru open pores.
Because flowers should change gases thru their stomata, final them prevents flowers from taking on carbon dioxide (CO2). Without CO2, flowers can't make carbohydrates, and flowers can most effective reap this vital molecule whilst stomata are open.
Plants lose the bulk in their water thru stomata. Thus, they near their stomata at night time to save you extra lack of water thru them. Stomata cannot be closed withinside the daytime, due to the fact the plant has to consumption carbon dioxide for the manner of photosynthesis.
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What island is 65ºN,18ºW
Answer:
Iceland
Explanation: