Respiration And Photosynthesis

Question 1

What is the primary purpose of respiration in living organisms?

Answer 1

To convert glucose into usable energy (ATP).

Question 2

True or False: Photosynthesis occurs in the mitochondria of plant cells.

Answer 2

False

Question 3

Fill in the blank: The process of photosynthesis converts _____ energy into chemical energy.

Answer 3

light

Question 4

What are the main products of photosynthesis?

Answer 4

Glucose and oxygen.

Question 5

Which pigment is primarily responsible for capturing light energy in plants?

Answer 5

Chlorophyll.

Question 6

What are the two main stages of photosynthesis?

Answer 6

Light-dependent reactions and the Calvin cycle.

Question 7

What gas is a byproduct of respiration?

Answer 7

Carbon dioxide.

Question 8

True or False: Both respiration and photosynthesis are essential for the energy cycle in ecosystems.

Answer 8

True

Question 9

What is the chemical equation for aerobic respiration?

Answer 9

C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP.

Question 10

In which organelle does cellular respiration primarily occur?

Answer 10

Mitochondria.

Question 11

Multiple Choice: Which of the following is NOT a reactant in photosynthesis? A) Water B) Glucose C) Carbon dioxide

Answer 11

B) Glucose

Question 12

What is the main energy currency of the cell?

Answer 12

ATP (adenosine triphosphate).

Question 13

Fill in the blank: The light-dependent reactions of photosynthesis take place in the _____ of the chloroplast.

Answer 13

thylakoid membranes

Question 14

What is the role of NADPH in photosynthesis?

Answer 14

It acts as a reducing agent in the Calvin cycle.

Question 15

True or False: Anaerobic respiration does not require oxygen.

Answer 15

True

Question 16

What is the primary function of the Calvin cycle?

Answer 16

To convert carbon dioxide into glucose.

Question 17

Which type of respiration occurs in yeast and some bacteria?

Answer 17

Anaerobic respiration.

Question 18

Multiple Choice: Which process is responsible for providing oxygen to the atmosphere? A) Respiration B) Photosynthesis C) Fermentation

Answer 18

B) Photosynthesis

Question 19

What is the role of oxygen in aerobic respiration?

Answer 19

It acts as the final electron acceptor in the electron transport chain.

Question 20

Fill in the blank: The energy stored in glucose is released during _____ respiration.

Answer 20

cellular

Question 21

What is the main function of chloroplasts in plant cells?

Answer 21

To conduct photosynthesis.

Question 22

True or False: The process of respiration is the reverse of photosynthesis.

Answer 22

True

Question 23

What is fermentation?

Answer 23

A metabolic process that converts sugars to acids, gases, or alcohol in the absence of oxygen.

Question 24

What are the two main types of fermentation?

Answer 24

Lactic acid fermentation and alcoholic fermentation.

Question 25

Fill in the blank: The rate of photosynthesis can be affected by factors such as light intensity, _____, and carbon dioxide concentration.

Answer 25

temperature

Question 26

What is the main energy source for cellular processes?

Answer 26

ATP (adenosine triphosphate).

Question 27

Which organism is primarily responsible for photosynthesis in aquatic environments?

Answer 27

Phytoplankton.