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The following question based on physiology of plants, humans and animals topic of general science mcq

Questions : Match Column-I with Column-II and select the correct answer using the code given below the lists.
Column-I Column-II
A. Isotonic I. External solution is more concentrated
B. Hypotonic II. Shrinkage of protoplasm
C. Hypertonic III. Solution is more dilute than the cytoplasm
D. Plasmolysis IV. Two solutions have the same osmolarity
Select the correct answer using the codes given below the lists: A B C D

(a) A – IV; B – III; C – I; D – II

(b) A – II; B – I; C – IV; D – III

(c) A – III; B – I; C – IV; D – II

(d) A – II; B – III; C – IV; D – I

The correct answers to the above question in:

Answer: (a)

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Read more biology Based General Science Questions and Answers

Question : 1

Find the true statement:

a) Collenchyma is not a simple tissue.

b) Meristematic cells are not compactly arranged.

c) the term histology was coined by Meyer

d) None of these

Answer: (c)

Question : 2

End product of glycolysis is

a) pyruvic acid

b) glucose-1-phosphate

c) acetyl CoA

d) fructose-1-phosphate

Answer: (a)

Pyruvic acid is the end product of glycolysis.

biology plant physiology mcq question answer 9 hint

Question : 3

Study the following statements :

  1. The term ‘Cell’ was first coined by Robert Hooke.
  2. Plant cells are generally without lysosomes.
  3. Cell wall present only in animal cells.
Which of the statement(s) given above is/are true?

a) 2 and 3

b) 1, 2 and 3

c) 1 and 2

d) Only 1

Answer: (c)

Presence of Cell wall is a characteristic feature of plant cells only. Animals lack cell wall.

Question : 4

Which mineral nutrients are called critical element for crops?

a) C, H, O

b) N, S, Mg

c) N, P, K

d) K, Ca, Fe

Answer: (c)

Question : 5

Study the following statements :

  1. Control room of the cell is Nucleus
  2. Nucleus was discovered by Robert Brown.
  3. Nuclear envelope is absent in bacteria.
Which of the statement(s) given above is/are correct about nucleus?

a) 1 and 2

b) 1 only

c) 2 only

d) 1, 2 and 3

Answer: (d)

The nucleus is the control room of the cell as it contains the genome which gets expressed to give the phenotype.

The nucleus of the cell was discovered by Robert Brown in 1833. Bacteria are prokaryotes, they lack the nuclear envelope and their genetic material lies in the cell cytoplasm.

Question : 6

Two pigment system theory of photosynthesis was proposed by or Concept of evidence for existence of two photosystems in photosynthesis was given by

a) Blackman

b) Emerson

c) Hill

d) Arnon

Answer: (b)

The discovery of the Emerson effect stated that one group of pigments absorbs light of both shorter and longer wavelengths (more than 680 nm) and another group of pigments absorbs light on only shorter wavelengths (less than 680 nm).

These two groups of pigments are known as pigment systems or photosystems.

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