Biology MCQs

1496 MCQs  — Everyday Science MCQs  (Page 123 of 150)

Attempt Biology Quiz
Lungs are covered with double layered thin membranous sac called___________?
A. Disphragm
B. Pleura
C. Pericardium
D. Rib cage
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During rest the breathing occurs rhythmically at the frequency of _________ times per minute in human?
A. 16-30
B. 15-20
C. 5?10
D. 6?12
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The maximum amount of oxygen which normal human blood absorbs and carries at sea level is ________ per 100 ml of blood.
A. 10 ml
B. 20 ml
C. 30 ml
D. 40 ml
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ATP are consumed during___________?
A. Glycolysis
B. Kreb’s cycle
C. Light dependent phase
D. None of these
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Functional units of lungs are called________?
A. Alveoli
B. Air sacs
C. Parabronchi
D. None of these
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Lungs are spongy due to the presence of million of___________?
A. Air sacs
B. Alveoli
C. Bronchioles
D. Parabronchi
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The chlorophyll molecule is embedded in the core of thylakoid membrane which acts as___________?
A. Hydrophilic
B. Hydrophobic
C. Both of these
D. None of these
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The most important photosynthetic pigment is ___________?
A. Chlorophyll a
B. Chlorophyll b
C. Xanthophyll
D. Carotenes
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Final acceptor of electrons in respiratory chain is____________?
A. Nadh
B. Cytochrome a3
C. Water
D. Oxygen
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From one pyruvate passing through Kreb’s cycle, how many NADH are formed?
A. 1
B. 2
C. 3
D. 4
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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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