AQA trilogy Bioenergetics

Question 1

What is bioenergetics?

Answer 1

The study of the transformation of energy in living organisms.

Question 2

Which process do plants use to convert sunlight into chemical energy?

Answer 2

Photosynthesis.

Question 3

True or False: Aerobic respiration occurs in the absence of oxygen.

Answer 3

False.

Question 4

What is the primary energy currency of the cell?

Answer 4

Adenosine triphosphate (ATP).

Question 5

Fill in the blank: The equation for photosynthesis is 6CO2 + 6H2O + light energy → C6H12O6 + _____ .

Answer 5

6O2.

Question 6

What is the main byproduct of aerobic respiration?

Answer 6

Carbon dioxide.

Question 7

Which organelle is known as the powerhouse of the cell?

Answer 7

Mitochondria.

Question 8

Multiple Choice: Which of the following is NOT a stage of cellular respiration? A) Glycolysis B) Krebs Cycle C) Calvin Cycle D) Electron Transport Chain

Answer 8

C) Calvin Cycle.

Question 9

What type of respiration occurs in yeast during fermentation?

Answer 9

Anaerobic respiration.

Question 10

True or False: The Krebs Cycle occurs in the cytoplasm of the cell.

Answer 10

False.

Question 11

What is the role of chlorophyll in photosynthesis?

Answer 11

To absorb light energy.

Question 12

Fill in the blank: ATP is produced during glycolysis and the Krebs Cycle through _____ phosphorylation.

Answer 12

substrate-level.

Question 13

What are the two main types of respiration?

Answer 13

Aerobic and anaerobic respiration.

Question 14

Multiple Choice: In which part of the cell does the Krebs Cycle take place? A) Cytoplasm B) Nucleus C) Mitochondrial Matrix D) Ribosome

Answer 14

C) Mitochondrial Matrix.

Question 15

What is the main purpose of the electron transport chain?

Answer 15

To generate ATP through oxidative phosphorylation.

Question 16

True or False: Fermentation produces more ATP than aerobic respiration.

Answer 16

False.

Question 17

What is the final electron acceptor in aerobic respiration?

Answer 17

Oxygen.

Question 18

Fill in the blank: The light-dependent reactions of photosynthesis occur in the _____ membranes.

Answer 18

thylakoid.

Question 19

Which molecule is produced during anaerobic respiration in muscle cells?

Answer 19

Lactic acid.

Question 20

What is the term for the energy stored in the bonds of molecules?

Answer 20

Chemical energy.

Question 21

Multiple Choice: Which process releases energy from glucose? A) Photosynthesis B) Respiration C) Fermentation D) All of the above

Answer 21

B) Respiration.

Question 22

What is the role of NADH in cellular respiration?

Answer 22

To carry electrons to the electron transport chain.

Question 23

True or False: Oxygen is required for anaerobic respiration.

Answer 23

False.

Question 24

Fill in the blank: The main products of the Krebs Cycle are ATP, NADH, FADH2, and _____ .

Answer 24

CO2.

Question 25

What type of energy transformation occurs during photosynthesis?

Answer 25

Light energy to chemical energy.

Question 26

Multiple Choice: Which of the following is a product of fermentation? A) Oxygen B) Ethanol C) Glucose D) ATP

Answer 26

B) Ethanol.

Question 27

What is the process by which glucose is broken down in the absence of oxygen?

Answer 27

Fermentation.

Question 28

True or False: The Calvin Cycle directly produces glucose.

Answer 28

True.

Question 29

Fill in the blank: The main purpose of photosynthesis is to convert solar energy into _____ energy.

Answer 29

chemical.

Question 30

What does ATP stand for?

Answer 30

Adenosine triphosphate.

Question 31

Multiple Choice: Which of the following is a waste product of cellular respiration? A) Oxygen B) Glucose C) Carbon dioxide D) Water

Answer 31

C) Carbon dioxide.

Question 32

What is the significance of the proton gradient in the electron transport chain?

Answer 32

It drives ATP synthesis.

Question 33

Fill in the blank: The _____ is the site of photosynthesis in plant cells.

Answer 33

chloroplast.

Question 34

What type of energy is released during cellular respiration?

Answer 34

Chemical energy.