Biology MCQs

1496 MCQs  — Everyday Science MCQs  (Page 41 of 150)

Attempt Biology Quiz
Glycolipids and glycoproteins have structural role in the ______________ matrix of animal and bacterial cell?
A. Extracellular
B. Intracellular
C. Both of these
D. Glucose
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The cells present in testes and secrete testosterone are___________?
A. Sertoli cells
B. Germinal cell
C. Interstitial cells
D. Spermatocyte
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In Cx(H2O)y x ranges from______________?
A. 1 to 3 thousand
B. 3 to many thousand
C. 3 to 5 thousand
D. 5 to 9 thousand
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Exposure to low temperature stimulates plants to flower. This is called___________?
A. Photoperiodism
B. Thermotropism
C. Vernalisation
D. Thermoregulation
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The basic structural unit of a chromosome is____________?
A. The centromere
B. Nuceleosome
C. Telomere
D. Histone
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In living organisms the lubricant which provides protection against damage resulting from friction is___________?
A. Carbohydrates
B. Fatty acid
C. Water
D. Protein
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The first stage of development in which a cavity appears is the__________?
A. Neurula
B. Morula
C. Gastrula
D. Balastula
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The trioses which are intermediate in respiration and photosynthesis are_______________?
A. Glyceraldehydes
B. Dihydroxy acetone
C. Both of these
D. None of these
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The one which causes contraction of wall of the uterus during and after birth?
A. Adh
B. Msh
C. Oxytocin
D. Progesterone
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The monosaccharide found in some bacteria and occurring rarely are______________?
A. Trioses
B. Hexoses
C. Tetroses
D. Pentoses
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Word of the Day
13 Jul
Debunk
expose the falseness or hollowness of (an idea or belief).
بے نقاب کرنا، پول کھولنا

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