NCERT Biology Photosynthesis higher plants class-12 pdfs,mcqs,notes

Photosynthesis Higher Plants Mock Exam-7

Question No:1

Calvin cycle occurs in

[A] chloroplasts
[B] cytoplasm
[C] mitochondria
[D] glyoxisomes



Question No:2

In C3 plants, the first stable product of photosynthesis during dark reaction is

[A] 3-phosphoglyceric acid
[B] phosphoglyceraldehyde
[C] maleic acid
[D] oxaloacetic acid



Question No:3

How many Calvin cycle form one hexose molecule?

[A] 2
[B] 6
[C] 4
[D] 8



Question No:4

In which plant Calvin experimented the radioactive isotopy to discover the stable product of C3 cycle?

[A] Chlorella
[B] Cycas
[C] Carrot
[D] Tobacco



Question No:5

Mesophyll chloroplast of which plant alone is capable of synthesising starch or sucrose?

[A] C3 plant
[B] C4 plant
[C] both (a) and (b)
[D] Neither C3 nor C4



Question No:6

The enzymes of dark reaction in C4 plants are found in

[A] bundle sheath chloroplast
[B] mesophyll chloroplast
[C] both (a) and (b)
[D] none



Question No:7

In C4 plants, mesophyll cells are connected with bundle sheath cells with the help of

[A] Cytoplasmic connection
[B] Special connecting tissues
[C] Plasmodesmata
[D] Connection is not essential



Question No:8

In case of C4 pathway, CO2 combines with

[A] PGA
[B] PEP
[C] RuDP
[D] RMP



Question No:9

Which one is a C4 plant?

[A] Papaya
[B] Pea
[C] Potato
[D] Maize



Question No:10

C4 plants are also known as

[A] Hatch and Slack type
[B] Calvin type
[C] Calvin and Bassham type
[D] Emerson type



Question No:11

In C4 plants, Calvin cycle occurs in

[A] stroma of bundle sheath chloroplast
[B] mesophyll chloroplast
[C] grana of bundle sheath chloroplast
[D] does not occur as CO2 is fixed mainly by PEP and no CO2 is left for the Calvin cycle



Question No:12

Tropical plant like sugarcane show high efficiency of CO2 fixation because of

[A] Calvin cycle
[B] Hatch and Slack cycle
[C] BMP pathway
[D] TCA cycle



Question No:13

Which of the following cycle shows oxaloacetic acid as first stable product?

[A] Calvin cycle
[B] Hatch and Slack cycle
[C] C2 cycle
[D] None



Question No:14

Kranz type of anatomy is found in

[A] C2 plants
[B] C3 plants
[C] C4 plants
[D] CAM plants



Question No:15

C4 plants are adapted to

[A] hot and dry climate
[B] temperate climate
[C] cold and dry climate
[D] hot and humid climate