biology revision (end of year 8J) Flashcards
1
Q
Waxy layer
A
Reduces water loss. It is transparent to allow more light.
2
Q
Stomata
A
Allows diffusion of gases in and out of the leaf.
3
Q
Spongy Mesophyll
A
Air spaces allow gases to move and be exchanged.
4
Q
Xylem/ phloem vessels
A
Transporting minerals,water and glucose around the leaf
5
Q
Palisade layer
A
Cells containing lots of chloroplasts with chlorophyll pigment for absorbing sunlight for photosynthesis.
6
Q
what is respiration
A
It is the release of energy from glucose in cells.
7
Q
Anaerobic
A
The use of glucose to release energy without oxygen.
8
Q
Aerobic
A
Releases less energy when comparing to both.
