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.Management Sciences
Category: Biology Mcqs
Inner layers of the sponges are made up of__________?
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A. Pinacocytes
B. Choanoderm
C. Choanoytes
D. Pinacoderm
Which of the following vertebrates have a fish-like body?
A. Reptiles
B. Aves
C. Amphibians
D. Mammals.
Which of the following excretory structure is associated with gut of the organism?
A. Protonephridium
B. Metanephridium
C. Malpighian tubules
D. Nephrons
Main blood vessel of arthropods usually:
A. Lies on dorsal side
B. Lies on ventral side
C. Lies on lateral side
D. Is not present
Cytoplasmic strands that extend through pores in adjacent cell walls are known as___________?
A. Pseudopods
B. Symplasts
C. Plasmodesmata
D. Pili
PS I has chlorophyll a molecule which absorbs maximum light of _________ nm ?
A. 600
B. 650
C. 680
D. 700
The active site of an enzyme______________?
A. Never changes
B. Forms no chemical bond with substrate
C. Determined by structure and the specificity of the enzyme
D. They are non specific in their action
Which of the following endoplasmic reticulum has no ribosome on its surface?
A. smooth
B. rough
C. both
D. all of above
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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