Respiration & Photosynthesis

Question 1

What is Photosynthesis?

Answer 1

Photosynthesis is the process by which (green) plants use carbon dioxide, water and light energy in a series of chemical reactions to produce food (glucose) and oxygen (photo= light; synthesis+ to make)

Question 2

Light energy

Answer 2

Light energy is provided by the sun

Question 3

Carbon Dioxide

Answer 3

Plants obtain carbon dioxide (Co2) from the atmosphere.

Question 4

Water

Answer 4

Plants obtain water from under the ground.

Question 5

Chlorophyll

Answer 5

Green plants contain the pigment chlorophyll.

Question 6

What is the simplified chemical reaction for photosynthesis?

Answer 6

(CO 2) + Chlorophyll
carbon dioxide + water —–> glucose (C 6 H 12 O 6) + oxygen
Light energy

Question 7

What is the Gaseous Exchange?

Answer 7

The gaseous exchange is the process which plants absorb carbon dioxide and release oxygen (The absorption and emission of gasses)

Question 8

How does the gaseous exchange happen?

Answer 8

This happens through the stomata which are mainly found in the leaves, however can be found in other parts of a plant as well. Water is absorbed from the grounf through the root hairs of the plant.

Question 9

Name the two groups of plants which do not have chlorophyll.

Answer 9

Saprophytes and Parasites.

Question 10

What are Saprophytes?

Answer 10

Saprophytes are plants that survive on dead organic tissue

Question 11

What are Parasites?

Answer 11

Parasitic plants are plants that survive on living organic tissue