Plant nutrition and transport

Question 1

What is photosynthesis? and where does it take place?

Answer 1

• The process that produces good in plants in the form of glucose.
• takes place in the leaves of all green plants inside the chloroplasts.
• Chlorophyll absorbs sunlight and uses it’s energy to convert carbon dioxide and water into glucose.

Question 2

What is the word and symbol equations for photosynthesis?

Answer 2

carbon dioxide + water - glucose + oxygen
6CO2 + 6H20 - C6H12O6 + 6O2

Question 3

How are leaves designed for making food by photosynthesis?

Answer 3

• Waxy cuticle
• palisade mesophyll layer
• Spongy mesophyll layer
• air space
• stoma (guard cells)
• upper epidermis
• lower epidermis

Question 4

How are leaves adapted for efficient photosynthesis?

Answer 4

1) leaves are broad, so there’s a large surface area exposed to light.
2) Most of the chloroplasts are found in the palisade layer.
3) the upper epidermis is transparent so the light can pass through it to the palisade layer.
4) The waxy cuticle helps to reduce water loss by evaporation.
5) The adaptations of leaves are for gas exchange .