Biology Test 6

M.C.

1 ) D  2 ) B  3 ) D  4 ) C  5 ) A  6 ) D  7 ) D  8 ) B  9 ) A  10 ) B

Section II

1

i ) glucose is absorbed from the small intestine into the blood

ii ) high blood glucose level stimulate pancreas

   to secrete more insulin into the blood

   which stimulate the liver to

   convert excess glucose into glycogen

   and increase uptake of glucose by body cells

iii ) DàE, oxidation of glucose to release energy

   EàF, liver break down glycogen into glucose

iv ) more oxygen is required for breaking down the lactic acid

2

a ) blind spot, no light sensitive cell

b ) ( i ) yellow spot

   ( ii ) no rod, cones mainly concentrated here

       enable us to see different colour in bright light

       enable us to see the object clearly

c ) W

d ) ( i ) convex lens

Biology Ex. Book3 P.34

2

i ) ( 1 )  5 > 3 > 4

    ( 2 )  1 > 2 > 4

ii )

iii ) A – receive sensory impulse to make decision for action /

       send impulse to muscle, bring about the movement

   B – coordinate skeletal muscle / receive impulse from semi-circular canals

     - to maintain balance of body

   C – increase rate of heart beat / depth and rate of breathing

     - to supply more oxygen to muscles

iv)