Which product would be radioactive if you began the reaction with radioactive carbon atoms in the glucose molecule?
If you started the reaction using radioactive carbon atoms in the glucose molecule, the resultant CO2 would be radioactive.
What is the purpose of the carbon atom?Metal smelting makes use of impure carbon in the form of coke made from coal and charcoal made from wood. It is crucial for the iron and steel industries in particular. Graphite is utilized in furnace linings, electric motor brushes, and pencils. Activated charcoal is employed in filtering and purification processes.
What is the carbon atom's structure?Two electrons make up the first electron shell of carbon, while four of the eight possible spaces are found in the second electron shell. The electron shells of carbon are two. When two atoms come together to create bonds, their electrons from the outermost shell are shared.
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Ten grams of sugar is placed in a beaker with 100ml of water. Initially, the sugar is at the bottom of the beaker however once gradually heated the sugar disappears. Which statement best explains what type of change occurred?
The dissolution of sugar in water is an example of a physical change as no new substance is formed and it is easily reversible.
What are chemical and physical changes?Physical changes are changes that occur in the physical properties of substances.
The properties of physical changes include:
no great heat changes occurthey are reversibleno new substances are formed.Chemical changes are changes that occur in the chemical properties of substances.
The properties of chemical changes include:
great heat changes occurthey are not easily reversiblenew substances are formed.Considering the dissolution of sugar in water, no new substance is formed, instead a mixture of water and sugar is obtained. Also, the change is easily reversible as the sugar can be obtained by heating tue mixture to evaporate the water.
herefore, it is an example of a physical change.
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Note that the complete question is given below:
When sugar in a beaker is heated over a low flame, the solid crystals disappear and a thick, yellow-brown liquid forms. Determine whether this change is a chemical reaction or a physical change.
chemical reaction
physical change
All organisms in the kingdoms protista, plantae, fungi, and animalia are... *
O multicellular organisms.
O prokaryotes.
O eukaryotes.
O photosynthetic organisms.
All organisms in the kingdoms protista, plantae, fungi, and animalia are eukaryotes.
All the kingdoms of eukaryotes including protista, plantae, fungi, and animalia are placed in the domain eukarya.
Any cellular or creature with a distinct nucleus is stated to be a eukaryote. The nucleus of a eukaryotic cellular, which homes the nicely-described chromosomes (our bodies preserving the genetic cloth), is surrounded by using a nuclear membrane. Organelles together with mitochondria (cellular power exchangers), the Golgi equipment (a secretory tool), the endoplasmic reticulum (a canal-like shape of membranes inside the mobile), and lysosomes also are found in eukaryotic cells (digestive equipment within many mobile kinds). The absence of mitochondria and a nucleus in crimson blood cells, as well as the absence of mitochondria in the oxymonad species Monocercomonoides, are some exceptions to this rule.To know more about eukaryotes, visit:
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determine all the possible modes of inheritance for the pedigrees. you are currently in a labeling module. turn off browse mode or quick nav, tab to items, space or enter to pick up, tab to move, space or enter to drop. pedigree a pedigree b pedigree c answer bank
A pedigree is all the possible modes of inheritance for the pedigrees. you are currently in a labeling module.
It will be an X-linked recessive in Pedigree A. The X chromosome of a person exhibits the trait in this type of inheritance pattern.Identify all potential inheritance patterns for the pedigrees. A Pedigree B Pedigree Answers to Pedigree C 1 Autosomal II X-linked Recessive IV IV autosomal recessive III III autosomal dominant Autosomal dominant autosomal recessive IncorrectOne way to spot a recessive trait is to look for traits that skip a generation in a pedigree; these traits are frequently autosomal recessive traits. These characteristics are equally prevalent in both sexes. Ascertain whether the pedigree chart depicts an X-linked or autosomal disease.To learn more about inheritance.
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1. Do car accidents increase your car insurance cost?
Independent Variable:
Dependent Variable:
What is the effect of
Independent Variable.
On
Dependant Variable
Answer:
Yes.
Explanation: Yes,
Independent Variable is the insurance cost, the dependent variable is the car.
The cost of the cars insurance is the effect. I hope this helps :)
When an organisms passes on some unique traits to their offspring, which characteristic of life is this?
Growth and development
Organization
Homeostasis
Heredity
what is a trait and give an example of a animal trait
Answer:
A trait describes physical or chemical properties of the animal products or features that can influence the process by which an animal product is made. An example of a few traits would be: body structure, skin texture or fur coverings, facial shape, ear, eye and nose size and shape, and body, skin, or fur color.
Explanation:
hope it helps
Does osmosis require the use of energy to transport water across a cell membrane?.
Answer:
No
Explanation:
Osmosis is not require any energy. It's a passive transport.The way it works is :
Water moves along the concentration gradient.Water moves towards the more concentrated solution
Is used in all steps of protein synthesis and carries the genetic information of many viruses.
RNA used in all steps of protein synthesis and carries the genetic information of many viruses.
RNA- All living cells contain ribonucleic acid (abbreviated RNA), a nucleic acid with properties comparable to those of DNA. However, RNA is often single-stranded, unlike DNA. Instead of the deoxyribose present in DNA, the backbone of an RNA molecule is made up of consecutive phosphate groups as well as the sugar ribose.
DNA- The molecule found inside cells that carries the genetic material necessary for an organism to grow and operate. This knowledge may be handed forward from one generation into the next thanks to DNA molecules.
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Since marine life is either freshwater or marine, estuaries play little importance in aquatic ecosystems.
True or false?
Answer: False
Explanation:
design solution to treat sewage water in anaerobic digestion
An anaerobic treatment cycle entails wastewater entering a bioreactor plug socket containing sludge, a thick semi-solid substance rich in anaerobic bacteria and other microorganisms that break down the organic contaminants in the wastewater.
What is anaerobic digestion?Anaerobic digestion is a process in which bacteria break down organic matter in the absence of oxygen, such as animal manure, wastewater biosolids, and food waste.
Anaerobic digestion is the most commonly used sludge treatment method. In this process, a significant portion of the organic matter (cells) is broken down into carbon dioxide (CO2) and methane (CH4) in the absence of oxygen.
Thus, this is the way to treat wastewater anaerobically.
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A bacterium does not continuously swim at one speed in one direction. Different arrangements and structures of flagella contribute to changes in speed and direction when necessary. How does motility relate to flagellation?.
Different arrangements and structures of flagella contribute to changes in speed and direction when necessary. Motility relates to flagellation as:
Polar flagella (in any one or both the poles of the bacterium) makes the organism move very quickly in a particular direction.Peritrichous flagella (present all over the cell) helps the organism in rotation and tumbling.Amphitrichous flagella ( present in bulk at both the ends) move the organism slowly as these flagella work alternately and hence stop periodically to change directions).Flagella is a hair like structure present in both prokaryotic as well as eukaryotic cell. It helps in motility. An organism can have a single flagella or multiple and these can be arranged in various ways.
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What type of transport requires energy to carry a nutrient from outside the cell, through the cell membrane, and into the cell?.
Active transport requires energy to carry a nutrient from outside the cell, through the cell membrane, and into the cell.
What are passive and active modes of transportation?In contrast to passive transport, which does not require energy for the movement of molecules, active transport does. While in passive transport, molecules travel along the concentration gradient, active transport involves molecules moving against the gradient.
Active transport moving against the concentration from lower concentrations to higher concentrations. Active transport mechanism expands energy.
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21. How long does it take a star to get back to the same position in the sky it was the night before?
a. 23 hr 40 mins
b. 24 hrs
c. 24 hrs 5 mins
d. 23 hrs 56 mins
Answer: 23 hrs 56 min
Explanation: Because the earth rotates a full rotation in 24 hrs so the star will be in the same spot just before the full rotation is done.
one can measure time by the fractional distance a star has gone in its full circle around the sky. This is best done for stars that never set, stars near the north celestial pole.
3. Our cells have 2 types of chromosomes called:
sex chromosomes and autosomes(somatic)
When viewing the euglena in lab, you should be able to positively identify the _________ and __________.
When viewing the euglena in lab, you should be able to positively identify the chloroplasts and stigma.
The slide will exhibit both amoeba and euglena, which are frequent in pond water and pond weed, when examined under a microscope. Students can also see amoeba in the sample, but they can tell them apart from euglena. Students will see these organisms (Euglena) in this situation as long-bodied creatures with a whip-like tail on one end.All green plants and algae include chloroplasts. They are the ones who feed the plants. These are located in the mesophyll cells of the plant's leaves. They have an abundance of chlorophyll, which absorbs sunlight. Animal cells do not include this cell organelle.To learn more about euglena.
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pseudomonas aeruginosa represents a well-studied model organism for single-species biofilm formation. this research is also of direct medical significance because of the propensity of these bacteria to form biofilms in the
Pseudomonas aeruginosa represents a well-studied model organism for single-species biofilm formation. This research is also of direct medical significance because of the propensity of these bacteria to form biofilms in Cystic fibrosis (CF) patients.
Pseudomonas aeruginosa is a multidrug-resistant pathogen acknowledged for its pervasiveness, its inherently evolved antibiotic resistance mechanisms, and its relationship with severe infections such as various sepsis syndromes.
Cystic fibrosis (CF) is a genetic disorder that induces sticky, viscous mucus to form in organs, commonly in the lungs and the pancreas. In people who have cystic fibrosis, viscous mucus blocks the airways and causes breathing difficulty. Control includes methods of clearing lungs and a controlled diet.
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This question is not complete the complete question is:
Pseudomonas aeruginosa represents a well-studied model organism for single-species biofilm formation. This research is also of direct medical significance because of the propensity of these bacteria to form biofilms in _________ patients.
In which stage of mitosis do the identical sets of chromosomes line up along the midline or equator of the cell?.
The stage of mitosis in which identical sets of chromosomes (i.e., homologous chromosomes) line up along the midline or equator of the cell is called metaphase and it is the second 2nd step of cell division.
What is metaphase?Metaphase is the second step of mitosis, which is a cell division process aimed at generating somatic cells having the same genetic material as the parental cells.
Mitosis is a cell division cell in which a parental cell divides to produce two 2 genetically equal identical daughter cells, and this division cycle has different sequential stages (i.e., prophase, metaphase, anaphase, telophase, and cytokinesis)
In conclusion, the stage of mitosis in which identical sets of chromosomes (i.e., homologous chromosomes) line up along the midline or equator of the cell is called metaphase and it is the second 2nd step of cell division.
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When scientists use logic to determine the age of one fossil compared to another, they use this
type of dating?
Relative
O Carbon
O Absolute
Answer: Carbon Dating though measuring Carbon-14 levels
Explanation:
Scientist measure the age of a fossil determined on the Carbon-14 level compared to the Carbon-12 level. This method works because:
All organisms after their death stop replenishing the amount of carbon in their body. That means that they will have an equal amount of carbon-12 and carbon-14 until they die. Unlike carbon-12, carbon-14 is unstable and overtime will go through beta decay. Overtime, a carbon-14 neutron will become a proton and release an electron, transforming into nitrogen-14.This leads to a drop in carbon-14 level, and because of this, geologist compare the level of carbon-14 to carbon-12 to determine how long it has taken to reach such stage.50 Pts What is the function of chloroplasts in plant cells?
Responses
1They control the cell's homeostasis, EndFragment,
2They are responsible for DNA replication,
3They translate DNA into an amino acid sequence and synthesize proteins
4They use carbon dioxide, water, and light energy to produce oxygen and glucose
Answer:
4) They use carbon dioxide, water, & light energy to produce oxygen & glucose.
Explanation:
The function of chloroplast is to use carbon dioxide, water, and light energy to produce oxygen and glucose.
It is done by the process of photosynthesis. Therefore, the option (4) is the correct answer.
Which of these best explains why salivary amylase does not break down proteins?
If an epithelium has all cells touching the basement membrane, but not all cells reach the apical surface, that epithelium would be called a ________ epithelium.
If an epithelium has all cells touching the basement membrane, but not all cells reach the apical surface, that epithelium would be called a simple columnar epithelium.
The single layer of cells that make up the simple columnar epithelium are taller than they are wide. This kind of epithelium borders the small intestine and is responsible for absorbing nutrients from the gut's lumen. The stomach has simple columnar epithelia as well, which secretes mucus, acid, and digesting enzymes.
A basement membrane adheres to the basal surface of every epithelial cell. The basement membrane binds a layer of epithelial cells together and offers some mechanical support.
Although some cells do not reach the apical surface, all of the cells are in contact with the basal lamina despite the illusion of stratification caused by the arrangement.
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what is the function of structure e? the cell membrane. each letter marks a definite structure of the membrane. letter a marks the structure represented by a branched sequence on the integral protein. b marks a branched structure on the cell membrane. c marks a large elongated structure outside the cell. d marks part of the membrane, which consists of two rows of molecules. each molecule has a head and a tail. e marks a molecule, which is one of the membrane components. such molecules are randomly integrated in the membrane. f marks a structure that penetrates two layers of the membrane. what is the function of structure e? the cell membrane. each letter marks a definite structure of the membrane. letter a marks the structure represented by a branched sequence on the integral protein. b marks a branched structure on the cell membrane. c marks a large elongated structure outside the cell. d marks part of the membrane, which consists of two rows of molecules. each molecule has a head and a tail. e marks a molecule, which is one of the membrane components. such molecules are randomly integrated in the membrane. f marks a structure that penetrates two layers of the membrane. detection of environmental change cell-cell communication stabilization of the phospholipids structural support of the cell transport across the plasma membrane
stabilization of the phospholipids -Cholesterol helps to stabilize the structure of the plasma membrane.
What is plasma ?Of the four basic states of matter, plasma is one. It comprises a substantial amount of ions and/or electrons, which are both types of charged particles. The main distinction between plasma and the other elementary forms of matter is the presence of these charged particles. Being largely linked to stars, such as the Sun, it is the most prevalent type of ordinary stuff in the universe. It reaches to the rarefied intracluster medium and perhaps even to areas outside of our galaxy. Heating a neutral gas or exposing it to a powerful electromagnetic field can produce plasma artificially.
Plasma is electrically conductive due to the existence of charged particles. Individual particle dynamics and macroscopic plasma motion are controlled by collective electromagnetic fields, and both are extremely sensitive to externally imposed fields.
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What happens to the sodium ions and chloride ions when put in a beaker of water?
Answer:
Explanation: thanks for the points
What happens at 0° Kelvin? Select the best answer. (1 point)
O At 0° K, or absolute zero, all particle motion stops.
O A substance will lose both shape and volume.
O Particles have enough kinetic energy to begin to move.
O Particle motion slows to a vibration, preventing particles from escaping forces of attraction.
Answer:
A
Explanation:
Took the test
At 0° Kelvin or absolute zero, all particle motion stops. Thus, option A is correct.
What is absolute zero?
The lowest limit of the thermodynamic scale that measures temperature is known as absolute zero. It is also a condition in which entropy and enthalpy of a ideal gas which is cooled reached to its maximum value and the reading is taken as zero kelvin.
Absolute zero is also the lowest energy temperature in the thermodynamics and there is no cooling of an object on temperature that is exactly absolute zero.
Thermal energy is also hold a conservation of energy it means energy can't be created nor be destroyed but in real world when energy is transformed from one system to another system the efficiency is always decreases. So we can say that loss of energy is takes place but it's loss to friction or resistance in term of mechanics.
Thus, At 0° Kelvin or absolute zero, all particle motion stops. Thus, option A is correct.
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After swallowing, in what order does food pass through the regions of the gi tract?.
Stomach. Glands in your stomach lining make stomach acid and enzymes that break down food.
What is Stomach?Humans and many other animals, including numerous invertebrates, have a muscular, hollow organ called the stomach in their gastrointestinal tracts. The stomach is a crucial organ in the digestive system and has a dilated configuration. Following chewing, the stomach participates in the gastric phase of digestion. Using enzymes and hydrochloric acid, it performs a chemical breakdown.
The stomach is situated between the oesophagus and the small intestine in humans and many other animals. To aid in food digestion, the stomach secretes gastric acid and digestive enzymes. The pyloric sphincter regulates how food that hasn't fully broken down (called chyme) moves from the stomach to the duodenum, where peristalsis takes over to move it through the rest of the intestines.
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If the mitochondria and chloroplasts in eukaryotic cells resulted from endosymbiosis between various prokaryotes, what features should these organelles have?.
According to the endosymbiotic theory, some of the organelles in eukaryotic cells of the present day were once prokaryotic microorganisms.
What is endosymbiotic theory?According to this hypothesis, the first eukaryotic cell was most likely a cell resembling an amoeba that obtained nutrients through phagocytosis and had a nucleus that developed when a portion of the cytoplasmic membrane pinched off around the chromosomes
As with prokaryotic cells, chloroplasts are the same size, divide via binary fission, and have Fts proteins at their division plane.
The mitochondria of some protists have Fts homologs at their division plane and are the same size as prokaryotic cells. They divide by binary fission.The DNA in mitochondria and chloroplasts is circular rather than linear.The ribosomes found in mitochondria and chloroplasts have 30S and 50S subunits rather than 40S and 60S.Therefore, According to the endosymbiotic theory, some of the organelles in eukaryotic cells of the present day were once prokaryotic microorganisms.
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A researcher observed an amoeba under a microscope. while she watched, the amoeba moved toward a smaller object, surrender, and brought the object inside itself. which two characteristics of life did the amoeba demonstrate?
Answer:
response to stimuli, and obtaining matter and energy
Explanation:
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The unit of radiation absorbed energy or dose, is used for biology material only.
true or false
It is True, the unit of radiation absorbed energy or dose, is used for biology material only.
What is Absorbed Dose?The average dosage that is absorbed over an organ or tissue is commonly used to determine absorbed dose. This is obviously oversimplifying the true scenario. When an organ or person is exposed to radiation, the dosage is typically not homogenous throughout the volume of the organ.
The idea that the harm will occur whether the organ is exposed to radiation consistently or unevenly is a simplification that is adopted. This is certainly not true in severe situations, but if the nonuniformity is around 50% or less throughout the organ or person of interest, the mean organ dosage definitely may be employed successfully.
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Epinephrine inhibits salivary gland activity and muscle cell contraction in the airways, yet stimulates glycogen release in muscle cells and heart muscle cell contraction. How could one hormone have opposing effects on different organs?.
Answer:
Cells in the different tissues would have epinephrine receptors coupled to different signaling pathways.
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