Plant Physiology Biology Important question for NEET 2022

 

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PLANT KINGDOM is very important topic from class 11 NCERT biology for Neet exam every Year Questions asked from it here we provide free pdf containing Biology important neet Questions

Regularly many students asking and finding biology important question for Neet entrance examination 2022. Neet 2022 biology most important question PDF is available here we ispneet provide you simple PDF which contain 10-15 question regarding particular NCERT biology chapter important for Neet entrance examination 

Neet biology most important questions you can download them from hair chapter wise biology most important Neet question these question are fully NCERT based biology Neet questions and biology previous year most important question for you we make 5 PDF of important biology Neet question in different difficulty level.

1. The pathway of respiration common in all living organisms is X ; Identify X in the above paragraph

and select the correct answer.

(1) Glycolysis

(2) ETS

(3) Krebs' cycle

(4) Oxidative decarboxylation

2. Select the correct statement with respect to glycolysis.

(1) It occurs outside mitochondria

(2) It is an anaerobic phase

(3) Glucose is phosphorylated to glucose-6-phosphate by isomerase enzyme

(4) Both 1 and 2

3. Yeasts poison themselves to death when the concentration of alcohol reaches

(1) About 13%

(2) About 11%

(3) At 18%

(4) About 16%

4. Which of the following steps during glycolysis is associated with production of ATP ?

(1) Glucose -> Glucose - 6 - phosphate

(2) Fructose-6- phosphate -> Fructose -1, 6-biphosphate

(3) PEP -> Pyruvic acid

(4) Both (1) and (2)

5. Conditions necessary for photosynthesis are :

(1) Light and suitable temperature

(2) Chlorophyll and water

(3) Carbon dioxide

(4) All of the above

6. Which of the following factors effects photosynthesis

(1) number, size , age and orientation of leaves

(2) mesophyll cells and chloroplasts

(3) internal CO2 concentration and amount of chlorophyll

(4) All of these

7. The remarkable feature of photosynthesis is :

(1) Light energy is converted into chemical energy

(2) Formation of sugars from formaldehyde

(3) Formation of chlorophyll from inorganic salts

(4) Oxidation of chlorophyll

8. Splitting of water in photosynthesis is takes place at

(1) Grana thylakoid

(2) Stroma

(3) Stroma lamellae

(4) Both 1 and 2

9. ADP + iP = ATP in mitochondria is called :

(1) Phosphorylation

(2) Oxidative phosphorylation

(3) Photophosphorylation

(4) Photolysis

10. Moll's experiment explains that :

(1) Carbon dioxide is not essential for photosynthesis

(2) Carbon dioxide is essential for photosynthesis

(3) Light and water are essential for photosynthesis

(4) All of the above mentioned are correct

11. T.W. Engelmann using a prism and split the light into its spectral components and then illuminated a green alga, placed in a suspension of aerobic bacterium. Name that green alga :

(1) Chlorella

(2) Cladophora

(3) Chlamydomonas

(4) Nostoc and Anabaena

12. Van Niel demonstrated that photosynthesis is essentially a light dependent reaction in which hydrogen from a suitable oxidisable compound reduces carbon dioxide to carbohydrates. This study is based on the organisms of :

(1) Only purple bacteria

(2) Only green sulphur bacteria

(3) Chlorella and chlamydomonas

(4) Purple and green sulphur bacteria

13. Oxygen evolved by the green plants comes from H2O, not from CO2. This was proved by using :

(1) Radio isobar technique

(2) Radioisotope technique

(3) Both radio isobar and radio isotopes techniques

(4) Law of limiting factor

14. During Photochemical reaction in photosynthesis the following is/are formed :

(1) ATP, Hydrogen and O2 donor

(2) ATP, Hydrogen donor and O2

(3) Hydrogen, O2 and Sugar

(4) ATP and Sugar

15. Which of the following are produced by reactions that take place in the thylakoids and consumed by reactions in the biosynthetic phase:

(1) ATP and NADH

(2) NADP+ and ADP

(3) Glucose and O2

(4) ATP and NADPH

16. All the reactions from the reduction of CO2 to the formation of sugar is included in :

(1) Photolysis

(2) Hill reaction

(3) Light reaction

(4) Dark reaction

17. In Calvin cycle what is the correct sequence of substances:

(1) A ketose sugar, 3-phosphoglycerate, Triose phosphate

(2) 3-C organic acid, A ketose sugar, Triose phosphate

(3) Triose phosphate, 3-C organic acid, A ketose sugar

(4) Ribose 1, 3 biphosphate, 3-phosphoglycerate, triose phosphate

18. Which one of the followings, play very significant role for the activity of oxygenation as well as

carboxylation:

(1) PEP case

(2) RuBP

(3) Both (1) and (2)

(4) RuBiSCO

19. The sequential stages of calvin cycle are :

(1) Carboxylation, Reduction and Regeneration

(2) Carboxylation, Regeneration and Reduction

(3) Reduction, Carboxylaton and Regeneration

(4) Regeneration, Reduction and Carboxylation.

20. For formation of six molecule of glucose, how many CO2 molecule are require :

(1) 28

(2) 25

(3) 36

(4) 20