Question 1

What is the main pigment in chloroplasts that absorbs light energy for photosynthesis?

Accepted Answer

Chlorophyll

Answer

Melanin

Answer

Xanthophyll

Answer

Carotene

Question 2

During which stage of photosynthesis is oxygen produced?

Accepted Answer

Light-dependent reactions

Answer

Electron transport chain

Answer

Photorespiration

Answer

Calvin cycle

Question 3

Which molecule serves as the primary energy carrier in the process of photosynthesis?

Accepted Answer

ATP

Answer

NADPH

Answer

CO2

Answer

Glucose

Question 4

Which part of the chloroplast is responsible for the Calvin cycle?

Accepted Answer

Stroma

Answer

Granum

Answer

Thylakoid

Answer

Chlorophyll

Question 5

Which reactant is absorbed by plants during photosynthesis at point B?

Accepted Answer

Carbon dioxide

Answer

Oxygen

Answer

Water

Answer

Hydrogen

Question 6

Which are two of the products of the light-dependent reactions of photosynthesis?

Accepted Answer

ATP and NADPH

Answer

Carbon dioxide and water

Answer

Chlorophyll and pigment

Answer

Glucose and oxygen

Question 7

What structure in chloroplasts contains chlorophyll and is the site of the light-dependent reactions?

Accepted Answer

Thylakoids

Answer

Outer membrane

Answer

Inner membrane

Answer

Stroma

Question 8

What is the balanced chemical equation for photosynthesis? (Light is understood with the yield sign)

Accepted Answer

6CO2 + 6H2O -> C6H12O6 + 6O2

Answer

6O2 + 6H2O -> C6H12O6 + 6CO2

Answer

6CO2 + C6H12O6 -> 6H2O + 6O2

Answer

C6H12O6 + 6O2 -> 6CO2 + 6H2O

Question 9

In photosynthesis, which molecule is produced as a byproduct?

Accepted Answer

Oxygen

Answer

Glucose

Answer

Carbon dioxide

Answer

Water

Question 10

Which part of the plant is primarily responsible for photosynthesis?

Accepted Answer

Leaves

Answer

Roots

Answer

Stems

Answer

Flowers

Question 11

Which macromolecule is primarily produced during the process of photosynthesis?

Accepted Answer

Carbohydrates

Answer

Proteins

Answer

Lipids

Answer

Nucleic acids

Question 12

Which structure in the chloroplast is specifically involved in the light-dependent reactions?

Accepted Answer

Thylakoid membrane

Answer

Outer membrane

Answer

Stroma

Answer

Inner membrane

Question 13

What role does water play in the light-dependent reactions of photosynthesis?

Accepted Answer

It is split to provide electrons.

Answer

It directly produces glucose.

Answer

It captures sunlight.

Answer

It absorbs carbon dioxide.

Question 14

What is the role of ATP synthase in the light-dependent reactions?

Accepted Answer

To produce ATP from ADP and inorganic phosphate

Answer

To transport electrons

Answer

To split water molecules

Answer

To capture light energy

Question 15

What does ATP stand for?

Accepted Answer

Adenosine triphosphate

Answer

Adenosine tetra phosphate

Answer

Adenosine tripolyphosphate

Answer

Adenine triad phosphate

Question 16

What is the fluid-filled space surrounding the thylakoids in chloroplasts called?

Accepted Answer

Stroma

Answer

Cytoplasm

Answer

Matrix

Answer

Chlorophyll

Question 17

According to this graph&#44; which color of light does chlorophyll reflect?

Accepted Answer

Green light

Answer

Blue light

Answer

Red light

Answer

Yellow light

Question 18

Which of the following describes the main role of phloem in plants?

Accepted Answer

Transporting sugars and nutrients

Answer

Storing energy

Answer

Providing structural support

Answer

Carrying water from roots

Question 19

What is the primary function of xylem in plants?

Accepted Answer

Transporting water and minerals

Answer

Storing nutrients

Answer

Transporting food

Answer

Protecting the plant

Question 20

What type of macromolecule are enzymes&#44; like ATP Synthase&#44; classified as?

Accepted Answer

Protein

Answer

Lipid

Answer

Nucleic acid

Answer

Carbohydrate

Question 21

What is the main difference between autotrophs and heterotrophs?

Accepted Answer

Autotrophs produce their own food, while heterotrophs consume other organisms

Answer

Autotrophs are always plants

Answer

Heterotrophs can perform photosynthesis

Answer

Autotrophs need consumers to survive

Question 22

What type of process is photosynthesis classified as?

Accepted Answer

Anabolic

Answer

Metabolic

Answer

Cellular

Answer

Catabolic

Question 23

What is the primary energy source for photosynthesis?

Accepted Answer

Sunlight

Answer

Soil

Answer

Wind

Answer

Electricity

Question 24

How does the absence of chlorophyll affect the rate of photosynthesis in plants?

Accepted Answer

It significantly reduces the rate of photosynthesis

Answer

It has no effect on the rate of photosynthesis

Answer

It increases the rate of photosynthesis

Answer

It causes photosynthesis to occur more rapidly

Question 25

What are the reactants needed for the process of photosynthesis?

Accepted Answer

Carbon dioxide and water

Answer

Nitrogen and sunlight

Answer

Oxygen and glucose

Answer

Hydrogen and chlorophyll

Question 26

In the absence of light&#44; which reactant would not be broken down in photosynthesis?

Accepted Answer

Water

Answer

Carbon dioxide

Answer

Oxygen

Answer

Sunlight

Question 27

What are the main products of photosynthesis?

Accepted Answer

Glucose and oxygen

Answer

Carbon dioxide and water

Answer

Glucose and nitrogen

Answer

Nitrates and phosphates

Question 28

What is the primary source of electrons for the electron transport chain in photosynthesis?

Accepted Answer

Water (H2O)

Answer

Glucose (C6H12O6)

Answer

Carbon dioxide (CO2)

Answer

Oxygen (O2)

Question 29

What type of macromolecule makes up the main structure of the thylakoid membrane?

Accepted Answer

Phospholipids (lipids)

Answer

Proteins

Answer

Starch (carbohydrate)

Answer

Nucleic acids

Question 30

ADP and P is the substrate for the enzyme ATP Synthase. What is the model called that one substrate fits to one enzyme as shown in the diagram?

Accepted Answer

lock and key

Answer

enzyme-substrate complex

Answer

Answer

protein-product

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