Exchange and transport Flashcards
1
Q
What is the function and adaptation of the leaf mesophyll?
A
Contain intracellular airspaces
Facilitates diffusion in the leaf
2
Q
What is the function of root hairs?
A
Facilitate gas exchange with the surrounding soil environment
3
Q
What are the adaptations of the erythrocytes?
A
Biconcave shape
No nucleus
Tightly packed with haemoglobin
4
Q
What are the functions of erythrocytes?
A
Increases surface area to volume ratio - ensures diffusion distance is very short
5
Q
What is another name for Red Blood cells?
A
Erythrocytes
6
Q
What are the adaptations in the alveoli?
A
The position inside the body reduces water loss
The walls produce a surfactant
7
Q
What are the functions of alveoli?
A
Reduces tension in the coating of the alveoli
Prevents them from collapsing as this would reduce SA
