Everyday Science MCQs

5120 MCQs  (Page 90 of 512)

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Double fertilization occurs in_________?
A. All plants
B. All seed plants
C. Gymnosperms
D. Angiosperms
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Proteins comprise of ___________% of the total dry weight of a cell?
A. 40%
B. 50%
C. 60%
D. 70%
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Adult birds normally possess only one functional____________?
A. Ureter
B. Ovary
C. Lung
D. Testis
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Chemical component/s less in eukaryotic cell as compared to prokaryotic cell is / are (i) lipids (ii) carbodydrates (iii) proteins (iv) DNA_________________?
A. I & ii
B. Iii & iv
C. I ii iii & iv
D. Iv only
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Following possess bilateral symmetry as larva and radial symmetry as adult:
A. Chordata
B. Hydra
C. Echinodermata
D. Hemichordata
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Proteins are polymers of___________?
A. Fatty acids
B. Isoprenoid units
C. Amino acids
D. Nucleotides
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Which of the following is the empirical formula of chlorophyll b?
A. C55h70o5n4mg
B. C55h72o6n4mg
C. C55h70o6n4mg
D. C55h72o5n4mg
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In Glycin an amino acid R group is replaced by____________?
A. H
B. Ch3
C. Cooh
D. C = o
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How many moles of carbon dioxide are produced by complete oxidation of one mole of puruvic acid?
A. 1
B. 2
C. 3
D. 6
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The element in basic structure of proteins which differentiate them from carbohydrates________?
A. C
B. S
C. H
D. N
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Word of the Day
18 Jul
Proactive
(of a person or action) creating or controlling a situation rather than just responding to it after it has happened.
فعال، پیش قدمی کے ذریعے صورتحال پر قابو پانیوالا

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