photosynthesis

Question 1

What is photosynthesis?

Answer 1

The process by which green plants use sunlight to synthesize foods with the help of chlorophyll.

Question 2

True or False: Photosynthesis occurs only at night.

Answer 2

False

Question 3

Fill in the blank: The main pigment responsible for photosynthesis in plants is called _____ .

Answer 3

chlorophyll

Question 4

What are the two main stages of photosynthesis?

Answer 4

Light-dependent reactions and light-independent reactions (Calvin cycle).

Question 5

Which organelle in plant cells is responsible for photosynthesis?

Answer 5

Chloroplast

Question 6

What is the primary source of energy for photosynthesis?

Answer 6

Sunlight

Question 7

Multiple Choice: Which of the following is a product of photosynthesis? A) Carbon Dioxide B) Oxygen C) Glucose D) Both B and C

Answer 7

D) Both B and C

Question 8

What are the raw materials needed for photosynthesis?

Answer 8

Carbon dioxide, water, and sunlight.

Question 9

True or False: Photosynthesis only takes place in leaves.

Answer 9

False

Question 10

Short Answer: What gas do plants take in during photosynthesis?

Answer 10

Carbon dioxide

Question 11

What is the formula for photosynthesis?

Answer 11

6CO2 + 6H2O + light energy → C6H12O6 + 6O2

Question 12

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

Answer 12

thylakoid membranes

Question 13

Multiple Choice: Which of the following factors does NOT affect the rate of photosynthesis? A) Light intensity B) Temperature C) Soil pH D) Carbon dioxide concentration

Answer 13

C) Soil pH

Question 14

What is the main purpose of the Calvin cycle?

Answer 14

To convert carbon dioxide into glucose.

Question 15

True or False: Chlorophyll absorbs green light more efficiently than red light.

Answer 15

False

Question 16

Short Answer: Name one factor that can limit photosynthesis.

Answer 16

Low light intensity

Question 17

What is one importance of photosynthesis for life on Earth?

Answer 17

It produces oxygen and organic compounds that are essential for life.

Question 18

Fill in the blank: During photosynthesis, plants release _____ as a byproduct.

Answer 18

oxygen

Question 19

Multiple Choice: Which of the following statements is true? A) All plants perform photosynthesis B) Only green plants perform photosynthesis C) Some bacteria can perform photosynthesis D) Both B and C

Answer 19

D) Both B and C

Question 20

Short Answer: What role does water play in photosynthesis?

Answer 20

It provides electrons and protons for the reactions.