Oxygen accounts for ____ % of totals human body mass?
Oxygen accounts for ____ % of totals human body mass?
A. 65%
B. 18%
C. 10%
D. 3%
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Un-separated replica of chromosome is called___________?
Un-separated replica of chromosome is called___________?
A. Chromatin
B. Kinetochore
C. Chromatid
D. CentromereAmount of water required to excrete 1gN of Urea is_________?
Amount of water required to excrete 1gN of Urea is_________?
A. 1 ml
B. 50 ml
C. 100 ml
D. 150 mlIntroduction of vaccine within the body to produce immunity is an example of____________?
Introduction of vaccine within the body to produce immunity is an example of____________?
A. Artificially induced active immunity
B. Naturally induced active immunity
C. Artificially induced passive immunity
D. Naturally induced passive immunityWhich statement is incorrect about Lock and Key Model________________?
Which statement is incorrect about Lock and Key Model________________?
A. Specific enzyme can transform only a specific substrate
B. Active site of an enzyme is a non flexible structure
C. Active site does not change before during or even after the reaction
D. It explains the mechanism of every chemical reactionTaking in liquid material into the cells is known as_________?
Taking in liquid material into the cells is known as_________?
A. Phagocytosis
B. ocytosis
C. Exocytosis
D. Both a and bSecondary cell wall of sclerenchyma cells is impregnated with_________________?
Secondary cell wall of sclerenchyma cells is impregnated with_________________?
A. Cellulose.
B. Peptidoglycan and murein.
C. Lignin.
D. Pectin.