Biology

Created by: PhoebeCC
Created on: 03-04-21 11:38

Water absorbed by the roots moves through the stem and enters the leaves . Most of this water is lost in transpiration. Explain how internal structure of leaves results in the loss of large quantities of water in transpiration.

1. Xylem supplies water 2. Air spaces 3. Large surface area 4. Water evaporates from surface of mesophyll cells. 5.Guard cells open 6. Water vapour diffuses .

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Explain the roles of the flagellum , the mitochondria and the acrosome in sperm cells.

Flag Acrosome : 1. Releases enzymes 2. Enzymes break down protein layer . 3 . Sperm nucleus can enter egg cell . Egg and sperm fuses together . Mitochondria : Aerobic respiration . Flagellum : Propels sperm to fertilise egg :

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Which organism carry out respiration , growth , movement and excretion ?

All animal and plants

3 of 5

What kind of skin do amphibians have ?

Moist without scales

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In which part of the cell does aerobic respiration occur ?

Mitochondrion

5 of 5

Other cards in this set

Card 2

Front

Explain the roles of the flagellum , the mitochondria and the acrosome in sperm cells.

Back

Card 3

Front

Which organism carry out respiration , growth , movement and excretion ?

Back

Card 4

Front

What kind of skin do amphibians have ?

Back

Card 5

Front

In which part of the cell does aerobic respiration occur ?

Back

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