Transport of Substances in Plants & Animals

Transport of Substances in Plants & Animals Worksheet-1

1. Leaves lose water through transpiration which results in a pressure drop causing more water to be sucked up. This is called transpiration pull.

Which of the following leaves is likely to cause least transpiration pull?

(a)

(b)

(c)

Transport of Substances in Plants & Animals Worksheet-2

1. Capillaries exchange the following between blood and tissues

(a) Oxygen, carbon dioxide, RBC, food

(b) Oxygen, carbon dioxide, food, wastes

(c) Water, plasma, WBC, RBC

(d) Oxygen, carbon dioxide, WBC, RBC

2. Who discovered the circulation of blood?

(a) William Harvey                      (b) Galileo Galilie

(c) Hans Christian Oersted        (d) Thomas Alva Edison

Transport of Substances in Plants & Animals Worksheet-3

1. Select a mechanism which humans do not use for excreting their wastes from the body.

(a) Exhalation                               (b) Perspiration

(c) Daefecation                             (d) Transfusion

2. The clotting of blood is to

(a) Slow down the movement of blood inside the blood vessels

(b) Trap oxygen inside the blood so that it can be carried around more easily

(c) Seal up wounds and prevent loss of blood