BIOLOGY MOCK PAPER 2

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  • Created by: macy1
  • Created on: 18-06-18 09:16
Suggest why populations might show very low levels of genetic diversity.
-hunting, genetic bottleneck, small population, inbreeding or founder effect
1 of 6
The hydrostatic pressure falls from the arteriole end of the capillary to the venule end of the capillary. Explain why.
-loss of fluid/friction against capillary lining
2 of 6
High blood pressure leads to an accumulation of tissue fluid. Explain how.
-high blood pressure = high hydrostatic pressure, increases outward pressure from arterial end of capillary/reduces inward pressure at venule end of capillary. So more tissue fluid formed /less tissue fluid is reabsorbed
3 of 6
The water potential of the blood plasma is more negative at the venule end of the capillary than at the arteriole end of the capillary. Explain why.
-water has left the capillary and Proteins (in blood) too large to leave capillary, Increasing the concentration of blood proteins and thus wp
4 of 6
Describe how two amino acids differ from each other.
-different R groups
5 of 6
Describe and explain the mechanism that causes forced expiration.
-contraction of internal intercostal muscles, Relaxation of diaphragm muscles/of external intercostal muscles, Causes decrease in volume of chest/thoracic cavity, Air pushed down pressure gradient;
6 of 6

Other cards in this set

Card 2

Front

The hydrostatic pressure falls from the arteriole end of the capillary to the venule end of the capillary. Explain why.

Back

-loss of fluid/friction against capillary lining

Card 3

Front

High blood pressure leads to an accumulation of tissue fluid. Explain how.

Back

Preview of the front of card 3

Card 4

Front

The water potential of the blood plasma is more negative at the venule end of the capillary than at the arteriole end of the capillary. Explain why.

Back

Preview of the front of card 4

Card 5

Front

Describe how two amino acids differ from each other.

Back

Preview of the front of card 5
View more cards

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