chapter 8 (photosynthesis)

Question 1

chloraplasts

Answer 1

has process inside called photosynthesis

Question 2

photosynthesis

Answer 2

inside chloroplasts.

takes sunlight and turn into energy.

Question 3

Autotrauph

Answer 3

organisms who dod photosynthesis. they make their own energy (food)

ex: plants

Question 4

Hetertruaph

Answer 4

organism that don’t make their own energy. eat plants who do photosynthesis or other animal who eat plants….

ex: cammal

Question 5

energy

Answer 5

used by org. to do work

Question 6

adenisine triphosphate: (ATP)

Answer 6

Adenosine base

5 Carb suger (ribose)

3 Phosphate bonds

Question 7

energy used by cells-

Answer 7

adenisine triphosphate

Question 8

last phosphate bond _____________________

Answer 8

has strongest energy bond

Question 9

A.

what does a cell do when needing energy

Answer 9

Q.

breaks last phosphate bond. energy is released and cell has energy

Question 10

inside chloroplasts:

Answer 10

thylacoid

Question 11

thylacoid: (pancake)

stacks are called ________

Answer 11

:inside chloroplasts

stacks - Granum

Question 12

stroma

Answer 12

space inside chloraplasts

Question 13

Pigment

Answer 13

(inside thylakoid)

light absorbing molicules

Question 14

how does color work?

Answer 14

pigment absorbs certain colors in the rainbow and reflects others (the color the abject is)

Question 15

chloraphil

Answer 15

pigment in thylacoid.

absorbs every color but green, reflects green

Question 16

color white:

color black:

Answer 16

absorbs nothing reflects everything

absorbs everything reflects nothing

Question 17

when cell breaks third phosphate to get energy. ATP isn’t ATP since T= tri (3) phosphate. but they are only 2.

so what is it?

Answer 17

ADP+P

D = (2)

+P = they is that third phosphate just not attached.

Question 18

ADP, if cell absorbs energy then 3rd phosphate come back,

so ADP turns to ____

Answer 18

ATP

Question 19

Photosythesis formula:

Answer 19

C02+H20 —> C6H1206+02

reactince) (product

Question 20

Van Helmont

Answer 20

did experiment, planted seed in a measurment of soil , grew 5 years. became tree.

He figured out that water was part of photosynthesis

carboHYDRATES in photosynthesis
_________
(water)

carbo= in the air

Question 21

Joseph Preistly

Answer 21

experimant- took candle lit it and put it under glass. candle extinguished. placed small tree under glass near unlit candle. after few days relit candle under glass and candle lit. tree gave off oxygen

He discovered that in order to grow you need oxygen.

Question 22

ingenhousz

Answer 22

took preslty experimant did it in the dark. didnt work.

prooves photosynthesis can only happen with light

Question 23

2 parts of photosynthesis

Answer 23

1. light reaction (first)

2. dark reactions (doesnt have to happen in dark) (AKA Calvin Cycle)

Question 24

electrons:

Answer 24

transfers energy

Question 25

Electron carriers:

Answer 25

holds electrons because electrons are high energy to just float around. Called NADP+

Question 26

Photosystem

Answer 26

holds chloraplasts 2 in a group labeled back words (2----- then-----1)

Question 27

step #1 in photo.

Answer 27

sun hits photosystem 2, charges electons (in photosystem) charged electrons = excited electrons.

Question 28

step #2 in photo.

Answer 28

electrons go on electron transport chain. goes to photosystem 1. on the way it loses its energy . the energy from the electrons forces hydrogen in the stroma to move to inside thylacoid (active transport) destroys equalibriam. sunlight zaps photosystem 1 and refills electrons with enregy -excited.

Question 29

NADP+ + electrons =

Answer 29

NADPH

Question 30

how do hydrogen go back into stroma?

Answer 30

through protein.

Question 31

htdrogen goes through protein called _____________

Answer 31

ATP synthesis.

Question 32

what happens to ATP synthesis (protein) as hydrogen goes through?

Answer 32

when hydorgen goes through 'tunnel' the protein spins and they spark energy retatching the 3rd phophate to the ADP.

Question 33

ADP+P=____________

Answer 33

ATP

Question 34

dark reaction, 2nd step in photo.

Answer 34

doesn't need light equation: 6CO2----> C6H12O6

Question 35

dark reaction cycle:

Answer 35

6 carbon-diondioxide mixes with 6 5carb sugar. that equals 6 6carb sugar. 6 6carb sugar, they split into 12 3carbon sugar. the ATP and nadph give off energy turning into ADP and Nadp+. the energy goes to 12 3carb sugar = energized carbon remove 2 3caeb sugar. (C6H12O6 in equation.) left with 10 3carb sugar---- (start over) rearrange: 6 5carb sugar add 6 carbon-dioxide