Biology

Question 1

What is the primary process by which plants convert sunlight into energy?

Answer 1

Photosynthesis

Question 2

What are the two main stages of photosynthesis?

Answer 2

Light-dependent reactions and the Calvin cycle

Question 3

True or False: Photosynthesis occurs only in the leaves of plants.

Answer 3

False

Question 4

Fill in the blank: The main pigment involved in photosynthesis is called ______.

Answer 4

Chlorophyll

Question 5

What is the primary role of chlorophyll in photosynthesis?

Answer 5

To absorb light energy

Question 6

Which gas do plants take in during photosynthesis?

Answer 6

Carbon dioxide

Question 7

Which gas is released as a byproduct of photosynthesis?

Answer 7

Oxygen

Question 8

What are quadrats used for in ecological studies?

Answer 8

To sample and study the distribution of organisms in a specific area

Question 9

True or False: Quadrats can only be used for terrestrial studies.

Answer 9

False

Question 10

In the context of quadrats, what does ‘random sampling’ mean?

Answer 10

Selecting quadrats at random to avoid bias

Question 11

What is a pitfall trap commonly used for?

Answer 11

To capture small animals, particularly insects, for ecological studies

Question 12

Fill in the blank: In a pitfall trap, the trap is usually ______ to the ground level.

Answer 12

Flush

Question 13

What is the purpose of using pitfall traps in ecology?

Answer 13

To monitor and study population dynamics of ground-dwelling organisms

Question 14

What type of data can be collected using quadrats?

Answer 14

Species richness, abundance, and distribution

Question 15

Multiple Choice: What is the main advantage of using quadrats? A) Ease of use B) High accuracy C) Cost-effective D) All of the above

Answer 15

D) All of the above

Question 16

Which factor is NOT typically measured in a quadrat study?

Answer 16

Soil temperature

Question 17

True or False: Photosynthesis only occurs during the day.

Answer 17

True

Question 18

What is the formula for photosynthesis?

Answer 18

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

Question 19

Fill in the blank: The process of photosynthesis primarily occurs in the ______ of plant cells.

Answer 19

Chloroplasts

Question 20

What are the light-dependent reactions primarily responsible for?

Answer 20

Converting solar energy into chemical energy (ATP and NADPH)

Question 21

Short Answer: What is the Calvin cycle also known as?

Answer 21

Light-independent reactions or dark reactions

Question 22

True or False: All plants are capable of photosynthesis.

Answer 22

False

Question 23

What is the main purpose of the Calvin cycle?

Answer 23

To fix carbon dioxide into glucose

Question 24

Fill in the blank: The primary source of energy for photosynthesis is ______.

Answer 24

Sunlight

Question 25

What effect does increased carbon dioxide concentration have on photosynthesis?

Answer 25

It generally increases the rate of photosynthesis

Question 26

Multiple Choice: Which of the following factors can affect the rate of photosynthesis? A) Light intensity B) Temperature C) Water availability D) All of the above

Answer 26

D) All of the above

Question 27

What is the significance of monitoring plant growth using quadrats?

Answer 27

To assess ecological health and biodiversity

Question 28

True or False: The use of quadrats can help identify invasive species.

Answer 28

True

Question 29

Fill in the blank: A pitfall trap is typically made from ______.

Answer 29

A container buried in the ground

Question 30

What is the role of water in photosynthesis?

Answer 30

It is a reactant that provides electrons and protons

Question 31

Short Answer: Name one plant that does not use photosynthesis.

Answer 31

Mushrooms (fungi)

Question 32

Fill in the blank: The efficiency of photosynthesis can be measured by the ______ produced.

Answer 32

Amount of glucose

Question 33

What is the purpose of using a control in quadrat studies?

Answer 33

To compare against the experimental results