Energy In Echo Systems+photosyhtsis

Question 1

In transfers from one level to the next in the food chain the majority ofthe energy is lost. Name the 3 methods in which energy is lost from the food chain

Answer 1

1 heat

2 movement

3 undigested materials

Question 2

A very small amount of energy is used for growth explain what this means for the food chain

Answer 2

This means more energy is avalable for the next level of the food chain

Question 3

What does the pyramid of numbers show

Answer 3

It shows the number of organisims at each level of the food chain

Question 4

How many stages are in the photosynthesis proses

Answer 4

2

Question 5

The first stage of photosynthesis is called the light reaction what occurs during the light reaction

Answer 5

The light energy from the sun is trapped my cholorphyll and creates atp

Water splits into hydrogen and oxygen

Oxygen diffuses from the cell

Question 6

The second stage of photosythesis is called carbon fixation what pccurs in this stage

Answer 6

During carbon fixation hygrogen and ATP with carbon dioxide is used to peoduce sugar

Question 7

What is the word equation for photosynthsis

Answer 7

Carbon dioxide+water————>suagr+oxygen

Light+chlorophyll

Question 8

What Can sugar be comverted to

Answer 8

Starch(strorage)

Cellulose(strucrual)

Question 9

What are the limiting factors of photosyhtsis

Answer 9

Carbon dioxide concentration,light intensity and temperature