12th Class Biology MCQS
Osteoblast and osteoclasts continue to migrate inward multiply rapidly and gradually convert the soft calius into
Hard callus
Jolly callus
Stony callus
Bony callus
The funnction of the tubules in muscle contraction is to:
Make and store glycogen
Release Ca+2 into the cell interior and then pick it up again
To hamper the nerve impulse
Make the action potential deep into the muscle cells:
Cortisol brings about an increase in blood glucose level mainly by its production from protein and by
Oestrogen
Progesterone
Insulin
Glucagons
In amoeba movement takes place by means of
Flageilum
Myonemes
Pseudopodium
Cilium
Each type of the principal type of sensation that we can experience e.g pain touch sight sound and so for this called a modality of
Sensation
Regulation
Susceptibility
Coordination
Why is there no glucose present in the filterate in the distal tubule of a nephron?
Its molecules are two large to pass across the base ment membrane
It is positively absorp by the cells lining the descending loop of henie
It is removed by osmosis from the tubule
He is actively absorb by hte proximal tubule cells
The sites where nerve impulse is transmitted from the nerve endings to the skeleton muscle cell membranes are the:
Sarcomeres
Neucromuscular junctions
Z discs
Myofilaments
In skletal muscle, calcium facilitates contraction by binding to:
Myosin
Troponin
Actin
Tropomyosim
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