Photosynthesis And Respiration Blk 2

2.

Which of the following statements is true about cellular respiration?

Aerobic respiration produces substantially more ATP than anaerobic respiration.
Aerobic respuration occurs before glycolysis
Anarobic respiration produces substantially more ATP than aerobic respiration.
Anaerobic respiration occurs before glycolysis

Correct Answer

A. Aerobic respiration produces substantially more ATP than anaerobic respiration.

Explanation

Aerobic respiration produces substantially more ATP than anaerobic respiration because aerobic respiration utilizes oxygen to break down glucose completely, resulting in the production of a larger amount of ATP. Anaerobic respiration, on the other hand, occurs in the absence of oxygen and only partially breaks down glucose, leading to a smaller yield of ATP.

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3.

What are the two carriers produced during light-dependent reaction?

ATP and NADPH
Sugar and carbon
Sugar and oxygen
Water and oxygen

Correct Answer

A. ATP and NADPH

Explanation

During the light-dependent reaction of photosynthesis, ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate) are produced. These molecules are essential for the next stage of photosynthesis, the light-independent reaction, also known as the Calvin cycle. ATP is a high-energy molecule that provides the necessary energy for various cellular processes, while NADPH is a reducing agent that carries high-energy electrons to be used in the synthesis of sugars during the Calvin cycle.

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4.

What is the net gain of energy from aerobic respiration?

46
24
36
40

Correct Answer

A. 36

Explanation

Aerobic respiration is a process in which glucose is broken down in the presence of oxygen to produce energy in the form of ATP. The net gain of energy from aerobic respiration is 36 ATP molecules. This is because during the process, glucose is broken down into two molecules of pyruvate in glycolysis, which then enter the citric acid cycle and electron transport chain. Through these processes, a total of 36 ATP molecules are produced. Therefore, the correct answer is 36.

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5.

What are the products of photosynthesis?

ATP and NADPH
Glycolysis
Water and carbon
Glucose and oxygen

Correct Answer

A. Glucose and oxygen

Explanation

Photosynthesis is the process by which plants convert sunlight into energy. During this process, carbon dioxide and water are converted into glucose and oxygen. Glucose is a simple sugar that serves as a source of energy for the plant, while oxygen is released as a byproduct. Therefore, the correct answer is glucose and oxygen.

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6.

What is another name for anaerobic respiration?

Fermentation
Stroma
Mitochondria
Thylakoid

Correct Answer

A. Fermentation

Explanation

Fermentation is another name for anaerobic respiration. During anaerobic respiration, glucose is broken down without the presence of oxygen to produce energy in the form of ATP. This process occurs in the absence of oxygen and is commonly found in microorganisms like yeast and bacteria. Fermentation is an important metabolic process that allows cells to continue producing energy when oxygen is not available.

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7.

What is another name for light-independent reaction?

Calvin cycle
ATP
Oxygen
Stroma

Correct Answer

A. Calvin cycle

Explanation

The correct answer is "calvin cycle". The calvin cycle, also known as the dark reaction or the light-independent reaction, is a series of biochemical reactions that occur in the chloroplasts of plants during photosynthesis. It takes place in the stroma, a fluid-filled region of the chloroplast, where carbon dioxide is converted into glucose using energy from ATP and NADPH produced during the light-dependent reactions. This cycle is named after Melvin Calvin, who discovered it in the 1950s.

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8.

What is the difference between ATP and ADP?

One requires oxygen
Amount of carbon
Their the same
The number of phosphate

Correct Answer

A. The number of phosphate

Explanation

ATP (adenosine triphosphate) and ADP (adenosine diphosphate) are both molecules involved in energy transfer within cells. The main difference between them is the number of phosphate groups they contain. ATP has three phosphate groups, while ADP has two. When ATP is used for energy, it releases one phosphate group and becomes ADP. This release of a phosphate group releases energy that can be utilized by the cell. ADP can then be converted back to ATP through the process of phosphorylation, where it gains a phosphate group. Therefore, the correct answer is "the number of phosphate".

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0

9.

Which of the following terms DOES NOT require energy?

Aerobic
Photosynthesis
Anaerobic
Light-independent reaciton

Correct Answer

A. Anaerobic

Explanation

Anaerobic is the term that does not require energy. Anaerobic refers to a process that occurs without the presence of oxygen. In anaerobic conditions, energy is produced through fermentation or other anaerobic metabolic pathways that do not require the use of oxygen. In contrast, aerobic, photosynthesis, and light-independent reaction all involve energy consumption or production in the presence of oxygen or light.

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Photosynthesis And Respiration Blk 2

What does photosynthesis depend on?

Quiz Preview

Which of the following statements is true about cellular respiration?

What are the two carriers produced during light-dependent reaction?

What is the net gain of energy from aerobic respiration?

What are the products of photosynthesis?

What is another name for anaerobic respiration?

What is another name for light-independent reaction?

What is the difference between ATP and ADP?

Which of the following terms DOES NOT require energy?