Question

QUESTION 7 When Ca++ bind this moves bind. out of the way so biding sites are open for Myosin heads to

Answer 1

7) tropomyosin

Myosin binds to the troponin-c portiin of the troponin molecule to move tropomyosin out of the way so that myosin can bind to actin to contract the muscle cells.

8)wolffian ducts

androgens released in the male babies stimulate the growth of wolffian ducts.

9)In developing female hormone secretions lead to the growth of the mullerian ducts.

10) Male brains are larger in size as compared tonthe female brains which is almost 8-13 percent more larger than the female brains.

Male have more grey matter volume in amygdala ,hippocampus whereas females have higher grey matter amount in the right frontal pole ,inferior and middle frontal gyrus and lateral occipetal cortex.

11) nicotinic receptors channel ,sarcoplasmic reticulum

The ACTH binds to the nicotinic receptors concentrated on the motor end plate, and this binding causes the nicotinic receptor channels to open and let sodium ions entre the muscle fibre.

The action potential travels down the sacroplasmic reticulum which causes ca++ channels to open.