Question

name_ class_ date_ the calvin cycle 14. what does the calvin cycle use to produce high - energy sugars? _ _ 15. why are the reactions of the calvin cycle also called the light - independent reactions? _ 16. circle the letter of each statement that is true about the calvin cycle. a. the main products of the calvin cycle are six carbon dioxide molecules. b. carbon dioxide molecules enter the calvin cycle from the atmosphere. c. energy from atp and high - energy electrons from nadph are used to convert 3 - carbon molecules into higher - energy forms. d. the calvin cycle uses six molecules of carbon dioxide to produce a single 6 - carbon sugar molecule. overview of cellular respiration 17. what is cellular respiration? _ _ _ 18. what is the equation for cellular respiration, using chemical formulas? _ 19. what would be the problem if cellular respiration took place in just one step? _

Explanation:

1. The Calvin cycle uses ATP, NADPH, and carbon dioxide to produce high - energy sugars. ATP provides the energy, NADPH provides the reducing power, and carbon dioxide is the carbon source.
2. The reactions of the Calvin cycle are called light - independent reactions because they do not directly require light. They can occur in the dark as long as the products of the light - dependent reactions (ATP and NADPH) are available.

16.

• a. False. The main products of the Calvin cycle are high - energy sugars (e.g., glucose), not carbon dioxide molecules.
• b. True. Carbon dioxide molecules enter the Calvin cycle from the atmosphere through stomata.
• c. True. Energy from ATP (in the form of phosphate groups) and high - energy electrons from NADPH are used to convert 3 - carbon molecules (e.g., glyceraldehyde - 3 - phosphate) into higher - energy forms (e.g., glucose).
• d. True. The Calvin cycle uses six molecules of carbon dioxide to produce a single 6 - carbon sugar molecule (glucose) through a series of reactions.

1. Cellular respiration is the process by which cells break down organic molecules (such as glucose) in the presence of oxygen to release energy in the form of ATP. It also produces carbon dioxide and water as by - products.
2. The equation for cellular respiration using chemical formulas is \(C_6H_{12}O_6+6O_2

ightarrow6CO_2 + 6H_2O+\text{Energy (ATP)}\)

1. If cellular respiration took place in just one step, a large amount of energy would be released at once. This would result in a large, uncontrolled release of heat. The cell would not be able to capture and use the energy efficiently in the form of ATP, and the high heat could damage the cell's structures.

Answer:

1. ATP, NADPH, and \(CO_2\)
2. They do not directly require light.
3. b, c, d
4. The process by which cells break down organic molecules (e.g., glucose) in the presence of oxygen to release energy (ATP), with \(CO_2\) and \(H_2O\) as by - products.
5. \(C_6H_{12}O_6+6O_2

ightarrow6CO_2 + 6H_2O+\text{Energy (ATP)}\)

1. A large, uncontrolled release of heat would occur, and the cell could not efficiently capture energy as ATP.