Photosynthesis and Respiration Test

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Photosynthesis and Respiration Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

Use the following information to answer the next question.

Photosynthesis is the process of manufacturing food in plants.

Which of the following factors is not essential for photosynthesis?

A
carbon dioxide

B
sunlight

C
oxygen

D
water

Solution

Plants absorb carbon dioxide and give out oxygen. Oxygen is not used in photosynthesis.
Question 2
1 / -0

Use the following information to answer the next question.

A plant is kept in a closed box and is provided with all the essential factors required for its existence except carbon dioxide. The plant dies after a period of ten days.

The absence of carbon dioxide affects

A
osmosis

B
respiration

C
absorption

D
photosynthesis

Solution

Plants require carbon dioxide to carry out photosynthesis. Therefore, the absence of carbon dioxide affects the process of photosynthesis.

The correct answer is D.

Why alternatives A, B and C are wrong:

Osmosis, respiration, and absorption do not require carbon dioxide.
Question 3
1 / -0

Use the following information to answer the next question.

Sunita took two potted plants, I and II, of the same kind. She removed all the leaves from plant I and kept it in sunlight while she placed plant II in dark for 2 days. After 2 days, she tested both the plants for the presence of starch.

Which of the following observations recorded by Sunita is correct?

A
Plant I gave a positive iodine test.

B
Plant II gave a positive iodine test.

C
The iodine tests of both plants I and II were positive.

D
The iodine tests of both plants I and II were negative.

Solution

Though leaves are referred to as the food factories of plants, photosynthesis occurs in other green parts of plants as well. Hence, plant I would have given a positive iodine test since it was kept in sunlight while plant II would have given a negative iodine test.
Question 4
1 / -0

Use the following information to answer the next question.

The ____i____ present on the ___ ii___ of plants help in the exchange of gases.

The information in which alternative completes the given statement?

A

i ii

stomata leaves

B

i ii

stomata roots

C

i ii

xylem leaves

D

i ii

xylem roots

Solution

Stomata are small openings on the leaves of plants. The gaseous exchange occurs through these openings.
Question 5
1 / -0

Use the following information to answer the next question.

Aerobic respiration is a type of cellular respiration which takes place in the presence of oxygen.

Which of the following substances is not produced during aerobic respiration?

A
Water

B
Energy

C
Carbon dioxide

D
Lactic acid

Solution

Lactic acid is not formed during aerobic respiration. It is formed during the process of anaerobic respiration.
Question 6
1 / -0

Which of the following components is not utilized by plants during photosynthesis?

A
Water

B
Sunlight

C
Nitrogen oxide

D
Carbon dioxide

Solution

Nitrogen oxide is not utilized by plants to carry out the process of photosynthesis.
Question 7
1 / -0

Which of the following substances is produced during anaerobic respiration?

A
Oxygen

B
Alcohol

C
Water

D
Glucose

Solution

During the process of anaerobic respiration, glucose is broken down in the absence of oxygen to release energy. This process also leads to the production of alcohol and carbon dioxide as by-products.
Question 8
1 / -0

Use the following information to answer the next question.

Water and ___I____ are utilized in the presence of ___II____ to produce glucose and oxygen during photosynthesis.

Which alternative completes the given statement?

A

I II

SO₂ CO

B

I II

CO₂ CO

C

I II

CO₂ sunlight

D

I II

SO₂ sunlight

Solution

Plants utilize CO₂ and water in the presence of sunlight to produce glucose and O₂ during photosynthesis.
Question 9
1 / -0

Which of the following statements is incorrect?

A
In plants, transport of gases occur through simple diffusion.

B
Plants produce more amount of heat than animals during respiration.

C
In both plants and animals oxygen is required for the process of respiration.

D
Anaerobic respiration in plants occurs rarely.

Solution

During respiration process, the amount of heat produced in plants is lesser than that produced in animals.

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i	ii
stomata	leaves

i	ii
stomata	roots

i	ii
xylem	leaves

i	ii
xylem	roots

Photosynthesis and Respiration Test - 1

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Photosynthesis and Respiration Test - 1

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Question 1

carbon dioxide

sunlight

oxygen

water

Solution

Question 2

osmosis

respiration

absorption

photosynthesis

Solution

Question 3

Plant I gave a positive iodine test.

Plant II gave a positive iodine test.

The iodine tests of both plants I and II were positive.

The iodine tests of both plants I and II were negative.

Solution

Question 4

i ii stomata leaves

i ii stomata roots

i ii xylem leaves

i ii xylem roots

Solution

Question 5

Water

Energy

Carbon dioxide

Lactic acid

Solution

Question 6

Water

Sunlight

Nitrogen oxide

Carbon dioxide

Solution

Question 7

Oxygen

Alcohol

Water

Glucose

Solution

Question 8

I II SO2 CO

I II CO2 CO

I II CO2 sunlight

I II SO2 sunlight

Solution

Question 9

In plants, transport of gases occur through simple diffusion.

Plants produce more amount of heat than animals during respiration.

In both plants and animals oxygen is required for the process of respiration.

Anaerobic respiration in plants occurs rarely.

Solution

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i ii

stomata leaves

i ii

stomata roots

i ii

xylem leaves

i ii

xylem roots

I II

SO₂ CO

I II

CO₂ CO

I II

CO₂ sunlight

I II

SO₂ sunlight