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MOST IMPORTANT general science mcq - 6 EXERCISES
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The following question based on physiology of plants, humans and animals topic of general science mcq
(a) C, H, O
(b) N, S, Mg
(c) N, P, K
(d) K, Ca, Fe
The correct answers to the above question in:
Answer: (c)
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Read more biology Based General Science Questions and Answers
Question : 1
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 |
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
Answer »Answer: (a)
Question : 2
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 »Answer: (c)
Question : 3
End product of glycolysis is
a) pyruvic acid
b) glucose-1-phosphate
c) acetyl CoA
d) fructose-1-phosphate
Answer »Answer: (a)
Pyruvic acid is the end product of glycolysis.
Question : 4
Study the following statements :
- Control room of the cell is Nucleus
- Nucleus was discovered by Robert Brown.
- Nuclear envelope is absent in bacteria.
a) 1 and 2
b) 1 only
c) 2 only
d) 1, 2 and 3
Answer »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 : 5
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 »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.
Question : 6
Nucleated part of nerve cell is called
a) dendrites
b) axon
c) cyton
d) None of the above
Answer »Answer: (c)
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