Question 1
- State two functions of the centriole
- How is the aerenchyma tissue adapted to its functions?
Answer
-
Formation of spindle fibres
Formation of cilia - Large air spaces for buoyancy / storage of respiratory gases; gaseous exchange;
Question 2.
Name a characteristic in humans which is controlled by multiple alleles
Answer
A B O blood grouping
Question 3
To which class does an animal with two body parts and four pairs of legs belong?
Answer
Arachinida
Question 4
Explain why Xylem vessels do not collapse even when they do not contain water
Answer
Thickened walls / Lignin deposition on wall
Question 5
State two characteristics of cells found at the apical meristems.
Answer
Dense cytoplasm;
Thin cell wall
Thin cell wall