Question 1 of 25
Which sentence best describes the role of the Calvin cycle in a plant cell?
OA. The cycle regenerates carbon dioxide through carbon fixation.
OB. The cycle causes new organic matter to be added to the body of a
plant.
C. The cycle forms new water molecules by combining oxygen and
hydrogen atoms.
D. The cycle changes one type of organic matter into inorganic
matter.
SUBMIT

Answers

Answer 1

A. The cycle regenerates carbοn diοxide thrοugh carbοn fixatiοn. The Calvin cycle is a prοcess in phοtοsynthesis that cοnverts carbοn diοxide intο glucοse.

What is phοtοsynthesis?  

Phοtοsynthesis is a prοcess by which plants, algae, and certain bacteria cοnvert light energy frοm the sun intο chemical energy. This chemical energy is stοred in the fοrm οf οrganic mοlecules, such as glucοse, which plants use tο fuel their grοwth and develοpment.

Phοtοsynthesis is essential tο all life οn Earth, as it is the main sοurce οf energy fοr all οrganisms. During this prοcess, carbοn diοxide and water are used tο create glucοse and οxygen. The οxygen is released intο the atmοsphere, while the glucοse is used fοr energy.

It is alsο knοwn as the dark reactiοn οr the reductive pentοse phοsphate cycle, and it invοlves the regeneratiοn οf carbοn diοxide frοm οrganic mοlecules. It is the main way in which plants use carbοn diοxide tο make οrganic mοlecules.

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Related Questions

At sea level, water is a liquid at temperatures between 0 degrees Celsius and 100 degrees Celsius. If this temperature range was between 10 degrees Celsius and 100 degrees Celsius instead, which of the following statements would be true? a) The amount of liquid water would decrease, and the amount of solid water would increase b)The amount of liquid water would increase, and the amount of solid water would decrease c) The amount of liquid water would decrease, and the amount of water vapor would increase

Answers

If the temperature range was between 10 degrees Celsius and 100 degrees Celsius instead, the amount of liquid water would decrease, and the amount of solid water would increase. Option A.

Boiling and freezing points of water

Water molecules freeze at temperatures below zero degrees Celsius and boil from a temperature of 100 degrees Celsius and above.

This means that water will be liquid at temperatures between 0 and 100 degrees Celsius.

Now, if the lower boundary is increased - the freezing temperature is increased to 10 degrees Celsius. It means any water below 10 degrees Celsius will be frozen while the temperature range for liquid water has been narrowed.

In other words, the amount of liquid water would decrease, while the amount of frozen or solid water will increase.

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Consider the following chemical reaction:

glucose (C6H12O6) + galactose (C6H12O6) → lactose (C12H22O11)

Which of the following is/are true of this reaction?


1) it is anabolic but not endergonic


2) it is endergonic but not anabolic


3) it is both anabolic and endergonic


4) it is neither anabolic nor endergonic

Answers

Answer: C12H22O11 + H2O C6H12O6 + C6H12O6. This is a hydrolysis reaction and is the reverse of a condensation reaction. It releases energy. Monosaccharides are used

Explanation:

Classify the following items based on the type of polymer they are made from: raincoats and leather shoes.

Answers

Raincoats are made up of synthetic polymers such as nylon and polyester.

Nowadays raincoats are usually made from waterproof, breathable materials like Gore-Tex, Tyvek, and nylon with a DWR coating. These materials and membranes permit the water vapor to pass through it.

Leather shoes are made up of natural polymer.

A tough, flexible, and long-lasting substance called leather is made by chemically treating animal hides. Cow and calf leather are the most prevalent varieties of leather, though it can come from either cows or calves.

Our main focus will be cow leather because it is the most widely utilized kind of leather in the production of footwear and is offered in a wide range of styles, grades, and price ranges.

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When comparing a plant cell to an animal cell, only the plant cell will have (select all that apply!)

1.cell membrane
2.cell wall
3.nucleus
4.chlorophyll
5.ribosomes

Answers

Answer:

Cell wall Chlorophyll because only plants go through photosynthesis

A researcher tested the effect of caffeine on sleep. Forty students volunteered to participate in the study and signed up for one of two nights. Students on Tuesday night drank a cup of regular coffee and students on Wednesday night received a cup of de-caff coffee. Students then took a nap and length of time to fall asleep was recorded with the aid of an EEG. Students in the caffeine group on average took 45 minutes to fall asleep where the students in the de-caff group on average took 10 minutes to fall asleep.

What is the problem of the experiment above?

What is the independent variable, dependent variable, and control group in the experiment?

What is the conclusion of the experiment?​

Answers

What is the problem of the experiment above?The researcher evaluated the impact of coffee on the amount of time it takes to fall asleep in this experimental investigation. He has employed a matched-pair design, in which each subject is examined twice. When the participant receives ordinary coffee in case one, and decaffeinated coffee in case two.

What is the independent variable, dependent variable, and control group in the experiment?The time needed to fall asleep is the dependent variable.The type of coffee—either regular or decaffeinated—is the independent variable.

What is the conclusion of the experiment?​The conclusion of the experiment is that caffeine helps in inducing sleep.Students who taken taken caffeine took more average sleep than that of the students who had taken de-caff.

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is the only pathogen
that can grow without oxygen.
a. E-Coli
b. Salmonellosis
c. Botulism
d. Shigellosis

Answers

Answer:

(c) is your correct answer

please mark me as brainlist

Answer:

Botulism is your answer.

Explanation:

The author of this passage would most likely agree with which statement?
A
We cannot fully organize or understand how old Earth is.
B
The Cenozoic era is not as important as the Mesozoic era.
C
Humans are relatively new to the planet.
D
The human species is probably over one-million years old.

Answers

B is your answer, i read the passage through and through

What occurs directly before forming a hypothesis?

Answers

Answer:collecting observation

vv Explanation: without obeseving first how would you form your hypothesis?.

I need help to find Appropriate pick up lines about vacuoles in biology

Answers

Answer:

vacuoles are water storage organelle in plant cells

Explanation:

it stores water for plants

In biology, vacuoles are membrane-bound organelles found in the cells of plants, fungi, protists, and some animal cells. They are essentially storage compartments within the cell that perform various functions depending on the type of cell and organism.

Vacuoles are typically larger in plant cells and often occupy a significant portion of the cell's volume. They can be classified into several types based on their functions:

Central Vacuole: Found in plant cells, the central vacuole is the largest and most prominent vacuole. It is responsible for maintaining turgor pressure, which helps to maintain cell shape and rigidity. It also stores water, ions, nutrients, pigments, and waste products.

Contractile Vacuole: Found in certain freshwater protists, contractile vacuoles are involved in osmoregulation. They collect and expel excess water from the cell to maintain a balanced internal environment.

Storage Vacuole: These vacuoles are involved in storing various substances such as nutrients, pigments, toxins, or waste products. In plants, they can store starch, proteins, and other compounds.

Lytic Vacuole: Found in some single-celled organisms like protists, lytic vacuoles function in intracellular digestion by containing enzymes that break down macromolecules or engulf and digest invading particles or organisms.

Vacuoles are essential for maintaining cellular homeostasis, regulating osmotic pressure, storing essential nutrients and ions, facilitating waste disposal, and providing structural support to plant cells. They also play a role in various developmental processes, such as cell growth and expansion.

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Urgently!! I have test tomorrow!! I Need To Know!!

What is the material that contains genetic blueprints (instructions) in a cell called?

Answers

The genetic material of the organism is present in the nucleus of the cell.

What is genetic material?

The genetic material in eukaryotes is DNA(Deoxyribonucleic acid)  and in prokaryotes is RNA(Ribonucleic acid).

The nucleus is the center of the cell. It is located in the cytoplasm. DNA is deoxyribonucleic acid and RNA is ribonucleic acid. The blueprint for protein molecule is stored in the nucleus in the form of DNA.

DNA first copied into other macromolecule called RNA. RNA then forms protein.

Therefore, The genetic material of the organism is present in the nucleus of the cell.

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Which two options are examples of making inferences from scientific
observations?
A. Predicting when it will rain based on satellite images of the
atmosphere
B. Using video footage to measure the speed of a running cheetah
C. Counting the number of black bears in a location
D. Describing the diet of a dinosaur based on the study of its
fossilized droppings
SUBMIT

Answers

Answer: ITS B

Explanation:

Answer:

A. Describing the diet of a dinosaur based on the study of its fossilized droppings.

D. Predicting when it will rain based on satellite images of the atmosphere.

Explanation:

answer A and D

Need help. 20 points!

Answers

Answer:

true

Explanation:

An equation for a chemical reaction is shown below.

Polysaccharide + water ______ monosaccharides.
Which substance is most likely represented by letter A?

Answers

This is hydrolysis reaction in which water is added to break something down into smaller units

Which of the following is evidence that would support the claim that transcription of DNA has been completed?

Answers

The evidence that would support the claim that transcription of DNA has been completed is that a temporary copy of DNA has been produced.

What is DNA?

This is referred to as deoxyribonucleic acid and is the genetic material present in living organisms and every being has unique one which is why it is used for identification. It undergoes different processes during cell division such as replication etc.

In DNA replication, a temporary copy of DNA is usually produced and is copied into RNA(Ribonucleic acid) before the process of translation occurs in the cells of the organism which shows that transcription of DNA has been completed.

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What are the two different types of solids? How are their molecules arranged differently?

Answers

Based on how the particles are arranged, solids are classified into two types: crystalline solids and amorphous solids.

What is solid?

Solid molecules merely pulsate and rotate in place. Ionic or strong covalent bonding holds solids together, and the attractive forces among atoms, ions, or particles in solids are very powerful.

A solid is a collection of atoms or molecules that are held together in such a way that they maintain a defined shape and size under constant conditions.

Solids are categorized into two types namely crystalline and amorphous. Amorphous solids are disordered, whereas crystalline solids are well ordered at the atomic level.

Thus, the two types of solids are crystalline and amorphous.

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How do cells specialize? Will give brainly. ;30 points

Answers

Cell specialization, also known as cell differentiation, is the process by which generic cells change into specific cells meant to do certain tasks within the body. Cell specialization is most important in the development of embryos.

Cells undergo a process called differential gene expression. This process allows cells to become specialized, as their structure determines their function. The process begins when a stimulus acts on an unspecialized cell

Create a life hierarchy of organization (choose a different organ system than the nervous system). Give definitions and examples from Ecosystem down to the atom.

Answers

A life hierarchy of organization is atomic- molecular- cellular- tissue-organ - organism - group- population- community- ecosystem- landscape- biosphere. This is the living hierarchy of organization.

What is ecosystem?

Ecosystem has been defined as the community that has biological by nature and the organism in that particular community attract with each other as well as their physical environment. Ecosystem has been consist of both biotic as well as abiotic factor. The living components of the ecosystem comes in category of biotic factor and non living components of the ecosystem comes in the category of abiotic factor.

Ecosystem has the community that has biological by nature and the organism in that particular community attract with each other as well as their physical environment.

Therefore, A life hierarchy of organization is atomic- molecular- cellular- tissue-organ - organism - group- population- community- ecosystem- landscape- biosphere. This is the living hierarchy of organization.

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Wave collectors in oceans do which of the following?

A. slow the erosion of coastal areas

B. increase coastal biodiversity

C. convert kinetic energy into electrical energy

D. modify the tides in estuaries​

Answers

It’s B nothing more nothing less the answer is B
Answer:

D. modify the tides in estuaries​

what is a reason if everyone in class does the same experiment with the exact materials and get different results

Answers

Explanation:

There is one a million chances that one person's experiment's result is correct and maybe the others are wrong.

Why do you think it is important that the test subjects were "blinded" and didn't know which shot they received?

Answers

In the blinded study of the vaccination of test subjects with either mRNA vaccine or placebo, the test subjects were blinded in order to eliminate bias.

What is a blinded-study?

A blinded research study is a type of study in which the patients and / or their doctors do not know which treatment that they have been given.

There are two types of blinded research study:

single-blinded research study- this is a type of study in which only the patients do not know which treatment they are being givendouble-blinded research study- is a type of study in which the patients and their doctors do not know which treatment that is been given.

The purpose of blinded studies is to eliminate bias on the part of the patient or their doctors.

Since having a prior knowledge of a particular treatment to be given may influence the patient to think or feel in a particular way, blinded studies help eliminate such bias.

In conclusion, blinded research studies may be single blinded or double blinded are useful in eliminating bias.

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4. Synthesize How do the different forms of potential energy depend on an object's position or chemical composition?​

Answers

Answer:

hi

Explanation:

What part of the nucleotide should you look at if you are trying to determine if you are looking at a purine or a pyrimidine?

Answers

You should be looking at the nitrogenous base pairs. Pyrimidines in DNA are always cytosine and thymine, and purines(1 ring structures) are always guanine and adenine(2 ring structures)

The image below shows the U-shaped glacial valley in Yosemite Valley, California:

Yosemite Valley, California is an example of a U shaped glacial valley

Climate has changed over geologic time. How does this image provide evidence to support this claim?

It shows marked topography of receding glaciers in warmer climates.
It shows a valley in frigid mountainous regions.
It shows a southern mountain range.

Answers

Answer:

it shows a southern mountain range

may be I am not sure

summarize the lab safety rules we need to follow​

Answers

Answer:  General Laboratory Safety Rules

1. Know locations of laboratory safety showers, eyewashstations, and fire extinguishers.

  2. Know emergency exit routes.

   3. Avoid skin and eye contact with all chemicals.

   4. Minimize all chemical exposures.

   5. No horseplay will be tolerated.

   6. Assume that all chemicals of unknown toxicity are highly toxic.

Explanation:

Biology Semester Exa
1. An enzyme that digests carbohydrates is mixed with starch. The enzyme would
a) have no action
b) produce amino acids
c) produce glucose
d) become a cell

Answers

Answer:

C

Explanation:

The enzymes will work on the starch and break it down to glucose

Some say that if you listen to the sound of a cricket chirping, you can determine the temperature. Is this true or is it just an urban (science) legend? Do any other factors affect how fast a cricket will chirp, such as humidity, wind, atmospheric pressure, or nearby crickets?

Answers

Answer:

Actually they do...

Explanation:

I don't know that if we listen to that sound that we know what's the weather but I think cricket's feel and some how know the tempreture.

lesson 4 chemical reactions and enzymes

Answers

When molecules interact and chemical bonds between them are made or broken, chemical reactions take place.

The mere proximity of two chemicals might cause some reactions. For instance, iron will produce iron oxide, sometimes known as rust, when oxygen is present. Other reactions need energy to initiate the reaction. A forest fire that is ignited by lightning is a fantastic example of something that will burn until all the fuel is consumed.Enzymes, biological molecules consisting of proteins that can be thought of as facilitators or catalysts, are frequently used in biology to help chemical reactions. Enzymes speed up the reaction or enable it to happen with less energy, and once the reaction is finished, they become available once more. They can therefore be reused because they are not consumed by the reaction. Enzymes are made to function best at a particular temperature and pH. They are less effective when used outside of this area. Because enzymes are comprised of protein, they can be denatured or destroyed at extremely high temperatures.

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3. Interpret What does it mean to be a good citizen?

Answers

A person demonstrates good citizenship when they act in accordance with their responsibilities as a citizen. There are a lot of different points of view on what makes a good citizen.

This is further explained below.

What is a citizen?

Generally, A citizen is a member of a political society who is able to participate in its affairs.

When a person satisfies the legal standards set out by a country, state, or municipal authority, they are granted citizenship. Citizens of a country are given certain rights and benefits by that nation.

In conclusion, Aristotle differentiates between a good citizen and a good man, stating in one of his writings that "...there cannot be a single perfect quality of the good citizen."

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Why do oxygens form double bonds?

Answers

Answer:

Each oxygen has 6 electrons and so need to share to more and so makes two bonds with the other oxygen.

Explanation:

Each oxygen has 6 electrons and so need to share to more and so makes two bonds with the other oxygen.

What does tissue look like in biology

Answers

Answer:

  In biology, tissue is a biological organizational level between cells and a complete organ.

Explanation:

  A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function. Organs are then formed by the functional grouping together of multiple tissues.

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