Photosynthesis end of year 8 test

What does chlorophyll do

absorbs sunlight energy

What does the chloroplast do

Is where photosynthesis take place

What is the photosynthesis equation

Carbon dioxide + Water —> Glucose + Oxygen

On the arrow: Sunlight and chlorophyll

What waste product of photosynthesis is used by the plant

Only glucose is used by the plant, not oxygen

Where does the oxygen leave the plant

Through the stomata

How do we know if starch is present in the leaf (doing photosynthesis)

Using iodine, if the plant turn blue - black then it has been doing photosynthesis

How do we know if a plant is NOT doing photosynthesis

Using iodine, if the plant turn yellow - brown

Use of stomata

Allows for gas exchange to occur, letting co2 in and oxygen out.

Control water loss

How had a leaf adapted for photosynthesis

Think leaves, letting gasses reaching the cells quicker

Stomata, allowing for gasses to move in and out

Lots of veins, carrying the water to cells and glucose away

wide and flat, absorbing more sunlight