CBSE

1. mark review Plants adapted to low light intensity have?

leaves modified to spines

larger photosynthetic unit size than the sun plants

more extended root system

higher rate of CO2 fixation than the sum plants

Question 1 of 15

2. mark review Which pigment system is inactivated in red drop?

PS-I

PS-II

PS-I and PS-II

None of these

Question 2 of 15

3. mark review Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of the higher plants?

Red and violet

Violet and blue

Green and red

Blue and green

Question 3 of 15

4. mark review During photo respiration the oxygen consuming reaction (s) occur in?

stroma of chloroplasts

stroma of chloroplasts and mitochondria

stroma of chloroplasts and peroxisomes

grana of chloroplasts and peroxisomes

Question 4 of 15

5. mark review Which element is located at the center of the porphyrin ring in chlorophyll?

Manganese

Magnesium

Calcium

Potassium

Question 5 of 15

6. mark review Stroma in the chloroplasts of higher plants contains?

light-independent reaction enzymes

light-dependent reaction enzymes

ribosomes

chlorophyll

Question 6 of 15

7. mark review Which one of the following statements about cytochrome P₄₅₀ is wrong?

It contains iron

It has an important role in metabolism

It is a colored iron

It is an enzyme involved in oxidation reactions

Question 7 of 15

8. mark review The first step of photosynthesis is?

excitation of electron of chlorophyll by a photon of light

formation of ATP

Attachment of CO 2 to 5 carbon sugar

ionisation of water

Question 8 of 15

9. mark review The first acceptor of electrons from an excited chlorophyll molecule of photo system-II is?

cytochrome

iron-sulphur protein

quinone

ferredoxin

Question 9 of 15

10. mark review Chlorophyll in chloroplasts is located in?

outer membrane

thylakoids

inner membrane

stroma

Question 10 of 15

11. mark review Photosynthesis in C₄-plants is relatively less limited by atmospheric CO₂ levels because?

rubisco in C 4-plants has higher affinity for CO2

four carbon acids are the primary initial CO2 fixation products

the primary fixation of CO2 is mediated via PEP carboxylase

effective pumping of CO 2 into bundle sheath cells

Question 11 of 15

12. mark review NADPH is generated through?

glycolysis

photo system-II

photo system-I

anaerobic respiration

Question 12 of 15

13. mark review Carbohydrates are commonly found as starch in plant storage organs. Which of the following five properties of starch (A-E) make it useful as a storage material?

(A) Easily trans located

(B) chemically non-reactive

(D) osmotically inactive

(E) synthesized during photosynthesis

The useful properties are?

(A) and (D)

(A), (C) and (E)

(B) and (C)

(B) and (D)

Question 13 of 15

14. mark review Which one of the following is wrong in relation to photo respiration?

It occurs in chloroplasts

It is a characteristic of C 3-plants

It is a characteristic of C4-plants

It occurs in day time only

Question 14 of 15

15. mark review Photochemical reactions in the chloroplast are directly involved in?

synthesis of glucose and starch

fixation of carbon dioxide

formation of phosphoglyceric acid

photolysis of water and phosphorylation of ADP to ATP

Question 15 of 15

Test Name	Photosynthesis Test
Subject	CBSE Biology
Test Type	MCQs
Total Question	30
Total Marks	60
Total Time	25 Minutes
Test Help For	CBSE Biology. CBSE Board Exams. Entrance Exams. Admissions Test. Jobs Test. General Knowledge. All Grades Exams.

Test By Subject	CBSE
Test By Topics	Photosynthesis Test

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CBSE Biology Photosynthesis Test 1 Online

CBSE Biology Photosynthesis Test 1 Online

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