Photosynthesis- adaptations of chloroplast for photosynthesis

Question 1

What is the primary function of chloroplasts?

Answer 1

The primary function of chloroplasts is to conduct photosynthesis.

Question 2

True or False: Chloroplasts are found in animal cells.

Answer 2

False

Question 3

What pigment is primarily responsible for capturing light energy in chloroplasts?

Answer 3

Chlorophyll

Question 4

Fill in the blank: Chloroplasts contain their own __________.

Answer 4

DNA

Question 5

What are the two main stages of photosynthesis that occur in chloroplasts?

Answer 5

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

Question 6

Multiple Choice: Which structure within the chloroplast is the site of the light-dependent reactions? A) Stroma B) Thylakoid membranes C) Outer membrane D) Inner membrane

Answer 6

B) Thylakoid membranes

Question 7

What is the role of the stroma in chloroplasts?

Answer 7

The stroma is the site of the Calvin cycle where carbon fixation occurs.

Question 8

True or False: Chloroplasts have a double membrane structure.

Answer 8

True

Question 9

What are thylakoids?

Answer 9

Thylakoids are membrane-bound structures within chloroplasts that contain chlorophyll and are the site of the light-dependent reactions.

Question 10

Fill in the blank: The main product of the light-dependent reactions is __________.

Answer 10

ATP and NADPH

Question 11

What is the significance of the chloroplast’s internal membrane system?

Answer 11

The internal membrane system increases surface area for light absorption and ATP production.

Question 12

Multiple Choice: Which molecule is fixed during the Calvin cycle? A) Oxygen B) Carbon dioxide C) Glucose D) Water

Answer 12

B) Carbon dioxide

Question 13

What is the role of water in photosynthesis?

Answer 13

Water is split during the light-dependent reactions to provide electrons and protons, releasing oxygen as a byproduct.

Question 14

True or False: Chloroplasts can only be found in green plants.

Answer 14

False

Question 15

What is the primary output of the Calvin cycle?

Answer 15

Glucose

Question 16

Fill in the blank: Chloroplasts are involved in converting __________ energy into chemical energy.

Answer 16

Light

Question 17

What is photolysis?

Answer 17

Photolysis is the process of splitting water molecules using light energy during the light-dependent reactions.

Question 18

Multiple Choice: Which of the following is NOT a product of photosynthesis? A) Glucose B) Oxygen C) Carbon dioxide D) ATP

Answer 18

C) Carbon dioxide

Question 19

What adaptations do chloroplasts have to maximize photosynthesis?

Answer 19

Chloroplasts have a high surface area due to thylakoid membranes, contain chlorophyll for light absorption, and have a double membrane for compartmentalization.

Question 20

True or False: The light-dependent reactions occur in the stroma.

Answer 20

False

Question 21

What is the purpose of the electron transport chain in chloroplasts?

Answer 21

The electron transport chain helps produce ATP and NADPH during the light-dependent reactions.

Question 22

Fill in the blank: The __________ is the fluid-filled space inside chloroplasts where the Calvin cycle takes place.

Answer 22

Stroma

Question 23

What is the main function of the outer membrane of the chloroplast?

Answer 23

The outer membrane serves as a barrier and regulates the passage of materials in and out of the chloroplast.

Question 24

Multiple Choice: Which of these processes occurs in the thylakoid membranes? A) Glucose synthesis B) Light absorption C) Carbon fixation D) Oxygen release

Answer 24

B) Light absorption

Question 25

What is the role of NADPH produced in the light-dependent reactions?

Answer 25

NADPH provides reducing power for the Calvin cycle to convert carbon dioxide into glucose.

Question 26

True or False: Chloroplasts are only involved in photosynthesis.

Answer 26

False

Question 27

What are the steps of the light dependent reaction in photosynthesis?

Answer 27

in the calvin cycle co2 reacts with ribose bisphosphate catalysed by rubisco to form glycerine 3 phosphate