Lab 7

Question 1

carbon cycle

Answer 1

CO2 assimilated by plants through photosynthesis and converted into organic compounds.
when plants are eaten or die, carbohydrates are broken down to Co2 and H2O through respiration. releasing CO2 into atmosphere.

Question 2

what are the major reservoirs

Answer 2

rocks–> sedimentary rocks, fossil fuels.
the atmosphere

Question 3

Greenhouse effect

Answer 3

CO2 traps solar heat into atmosphere

Question 4

what area experiences more warming

Answer 4

arctic, controbuting to permafrost thawing

Question 5

respiration

Answer 5

use of oxygen to break down organic compounds to release chemical energy.

Question 6

an increase in temperature will increaes the

Answer 6

rate of metabolism for microorganisms

Question 7

different litter composition will

Answer 7

affect rate of soil respiration

Question 8

in the decomposition process, glucose is

Answer 8

lost by leaching

Question 9

in the decomposition process, cellulose is

Answer 9

more difficult to decompose

Question 10

in the decomposition process, lignin is

Answer 10

extremely difficult to decompose and will take a long time

Question 11

litter with higher C:N as in >:>

Answer 11

will take longer to decompose

Question 12

terminal bud

Answer 12

a bud is an undeveloped shoot

Question 13

lateral bud

Answer 13

located above leaf scar

Question 14

leaf scar

Answer 14

left when leaf fell

Question 15

stipular scars

Answer 15

sometimes appear under or beside the leaf scars

Question 16

bud scale scars

Answer 16

represent place where growth began each year

Question 17

lenticels

Answer 17

spongy areas in the surfaces of stems allow gas exchange to occur across the periderm

Question 18

catkins

Answer 18

compound flowers or remains of flowers that look like tiny pine cones