1:2:2 Equation for photosynthesis

Question 1

What is the word equation for photosynthesis?

Answer 1

Carbon dioxide+water powered by chlorophyll and light=oxygen+glucose

Question 2

What is the balanced chemical formula for photosynthesis?

Answer 2

6CO2+6H2O=C6H12O6+6O2

Question 3

Where does photosynthesis take place?

Answer 3

In the palisade cells of the leaf.

Question 4

Draw and label the layers of a leaf.

Answer 4

-

Question 5

What three things adapt for light absorption?

Answer 5

• Epidermis- has cell wall as a physical defence which is transparent to allow light through. It also lacks chloroplasts (allows light to get to the whole leaf)
• Waxy Cuticle- Physical defence, transparent to allow light in, waterproof to reduce water loss.
• Palisade Mesophyll cells- tightly packed with many chloroplasts to increase photosynthesis.

Question 6

What three things adapt for gas exchange?

Answer 6

• Spongy mesophyll cells- have few chloroplasts, large surface area for gas exchange.
• Intercellular spaces- allow diffusion of gases through the leaf.
• Guard cells and stomata- Control the opening and closing of stomata pores, allows gases to diffuse in and out of leaf.