Photosynthesis and Respiration

Question 1

Photosynthesis

Answer 1

Converts sunlight into energy into sugar

most important biological process on earth

Question 2

Formula for Photosynthesis

Answer 2

Sunlight + CO2 = 02 + glucose

6CO2 + 12H2O + Sunlight = C6H12O6 + 6O2 + 6H2O

Question 3

What takes in CO2 and gives out H2O?

Answer 3

Stomata’s on the leaves

Question 4

What does sugar do for the plant?

Answer 4

Burn off as energy for plant growth

Question 5

Chloroplasts

Answer 5

Cells in plants where photosynthesis takes place (green cells)

Question 6

Chlorophyll

Answer 6

Substance that absorbs light energy

Question 7

Leaf Area Index

Answer 7

Leaf area / Land area

ratio between one sided green leaf area and ground surface

Question 8

Transpiration

Answer 8

absorption and release of water through leaves

capillary action

Question 9

Plants gain CO2 at the cost of water loss

Answer 9

Trade off

Question 10

Transient Wilting

Answer 10

When water loss from leaves is higher than the uptake of water.

Question 11

Effects on global Environment

Answer 11

Removes 3.5 tons of CO2 through photosynthesis

Recycles 5in of H2O into atmosphere through transpiration

Question 12

CO2 Respiration Formula

Answer 12

Carbohydrates + O2 = CO2 + H2O + Energy

Question 13

What occurs in each cell (mitochondria) night and day and increases due to warmer temperatures?

Answer 13

Cellular Respiration

Question 14

What are ideal growing conditions?

Answer 14

Warm, sunny days = High Photosynthesis

Cool nights = Low Respiration

Question 15

Solar Radiation

Answer 15

Ultraviolet, visible, infrared

Question 16

What is the only light source for Photosynthesis?

Answer 16

Visible light

Question 17

Is Photosynthesis efficient?

Answer 17

No.

Only 50% of sunlight is converted into energy

Question 18

Which is more efficient C3 or C4 plants?

Answer 18

C4

They only need half the amount of H2O that is needed by C3 plants to grow the same biomass.

Question 19

Examples of C3 Crops

Answer 19

wheat, rice, soybean, tobacco (85% of plants)

Question 20

Example of C4 Crops

Answer 20

corn, millet, sugar, sorghum (15% of plants)