GAS EXCHANGE IN PLANTS Flashcards
What gas do plants require for photosynthesis?
carbon dioxide
What gas do plants require respiration?
oxygen and glucose
What is diffusion?
Movement of particles from an area of high concentration to an area of low concentration down a concentration gradient
What do plants need for aerobic respiration?
oxygen and glucose
What is aerobic respiration?
Breakdown of glucose to release energy in the presence of oxygen
What is the word equation for aerobic respiration?
Glucose+oxygen –) carbon dioxide+water
What is the word equation for photosynthesis?
water +carbon dioxide –) glucose +oxygen
During photosynthesis what enters and exits the leaves
Carbon dioxide enters the leaf and oxygen exits the leaf
During respiration what enters and exits the leaf?
Oxygen enters and carbon dioxide exits
How does carbon dioxide enter the leaf?and for what process?
diffusing through small pores called stomata for photosynthesis
How does oxygen exit the leaf?and for what process?
moves out of the leaf through the stomata.
What surrounds the stomata?what does it do
surrounded by guard cells, which control their opening and closing of it
Where does light absorption happen in the plant?
palisade mesophyll tissue
What are palisade cells? what are they adapted with?
- -)COLUMN shaped and PACKED with many chloroplasts.
- -)arranged CLOSELYYYY together to maximise the absorption of light energy
