new lecs after ecology

Question 1

Differences in plants than animal ecophysiology

Answer 1

-plants cant run away

• they are autotroph
• photosynthesis need light, water, co2
• leaf, stem and root reflect adaptation to the environemnt

Question 2

hermaphrodite

Answer 2

both male and female parts

Question 3

plant stigma does what

plant anthers does what

Answer 3

recieve pollen

bear pollen

Question 4

Sesile

Answer 4

cant escape hard conditions but tolerate them

Question 5

Respiration (opposite of photosynthesis)

Answer 5

Breaks down carbs into ATP energy, plant growth needs more carbon for photosynthesis than they lose through respiration, so balance need to be good

Question 6

what is NET PRIMARY PRODUCTIVITY (NPP)

Answer 6

C gained through photosynthesis - C lost via respiration

Question 7

Stomata takes in what

Answer 7

Co2

Question 8

What is plant transpire

Answer 8

lost water through stomata

Question 9

Big leaf is good for ________ _____ but bad cuz ________ easy and lots of water lost through many ______

Answer 9

harvesting light

overheat

stomata

Question 10

Most plants fix carbon by _____________

Answer 10

C3 photosynthesis

Question 11

C3 photosynthesis

Answer 11

RUBISCO enzyme accepts CO2, at high temps, rubisco captures O2 instead of CO2, causes photorespiration which is bad

Question 12

C4 photosynthesis

Answer 12

Enzyme PEP carboxylase first accept CO2, reduce photorespiration

(PEP carboxylase mog rubisco in accepting CO2)

Question 13

CAM photosynthesis

Answer 13

Plants close stomata in day to reduce water loss, open at night to let in CO2

Question 14

Deciduous

Answer 14

Dropping leaves during dry/cold times and doing photosynthesis through stems

Question 15

Cactus don’t do photosynthesis cuz

Answer 15

Evolved leaf into stem

Question 16

What is Co2 stored as at night in CAM photosynthesis

Answer 16

MALATE

Question 16

Episodic rain is what

Answer 16

not consistent “when it rains it pours”

Question 17

Saguaro Cactus

Answer 17

Extensive shallow shoots, accordian trunk, can absorb 800L of storm

Question 18

Root “foraging”

Answer 18

split root experiment, same plant but root diff container

Question 19

Nodules

Answer 19

bacterias on roots that help intake soil nitrogen

Question 20

Spiny leaves make _______ airflow better for what?

Answer 20

turbulent

Cooling, gas exchange

Question 21

Smooth leaves have ________ flow what is it?

Answer 21

Laminar, less cooling

Question 22

Epiphytes

Answer 22

plants that grow on other plants, no roots, just absorb rain water and photosynthetic –> evolvled to hold water in leaves like a pitcher (rosette)