Test 2

Question 1

What is ATP

And what is it made of?

Answer 1

a compound called Adenosine and is used as energy

1 carbon-5 sugar (ribose) and 3 phosphate groups

Question 2

What is photosynthesis

Answer 2

The process of plants converting energy from the sun into chemical energy stored in bonds of carbohydrates

Question 3

Fill in the blank:

All living cells ____ _____ in chemical bonds of certain ________

Answer 3

1)store
2) energy
3) compounds

Question 4

What is ADP?

What is it made of?

Answer 4

Compound called Adenine diphosphate that looks similar to ATP but lacks 1 phosphate group

Question 5

How does energy release in cells?

What kind of energy source is it?

Answer 5

By breaking chemical bonds between atoms in the 2nd and 3rd phosphate groups

basic

Question 6

How do cells use ATP

Answer 6

> carrying out active transport
moving
be transferred to power processes

Question 7

What is a power process?

Answer 7

need for power
> protein synthesis
> respond to signals
> convert into light

Question 8

Do cells have a lot of ATP at once? and why?

Answer 8

No; because ATP does not store well and it is more efficient to be used and produce in small amounts

Question 9

What is a heterotroph?

Answer 9

an organism deriving its nutritional requirements from complex organic substances.

Question 10

what do heterotrophs eat?

Answer 10

plants

they gain energy either directly from plants or indirectly through other animals

Question 11

What is an autotroph?

Answer 11

An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals.

Question 12

What is pigment?

Answer 12

light absorbing compound

Question 13

What is chlorophyll?

Answer 13

principal pigment in plants

Question 14

What is a thylakoid

Answer 14

saclike chlorophyll containing membranes

interconnected and arranged in stacks

Question 15

What is a stroma

Answer 15

fluid portion of chloroplast located outside the thylakoids

Question 16

What is NADP+

Answer 16

carrier molecule (compound)

Question 17

what is a light dependent reaction?

Answer 17

Use energy from sunlight to add 3rd phosphate to ADP to make ATP

Question 18

Where do light dependent reactions take place

Answer 18

the thylakoid

Question 19

What are light Independent reactions

Answer 19

build high energy sugars from carbon dioxide

Question 20

What is needed in order for Photosynthesis to occur

Answer 20

light energy must be captured

Question 21

How do pigments work in photosynthetic organisms?

Answer 21

pigments capture energy-> chlorophyll a and b absorb the light, however they do not absorb light very well (this is why leaves are green)

Question 22

Why do leaves turn red and orange in the fall

Answer 22

pigments from red and orange are also not absorbed well and when the temperature drops chlorophyll breaks down first exposing the red and orange

Question 23

Chloroplasts are surrounded by ____________ _____________

Answer 23

envelope membranes

Question 24

What are high energy electrons

Answer 24

highly reactive and require a special carrier

Question 25

What is an example of a carrier

Answer 25

NADP +

Question 26

What do carriers do

Answer 26

carry 3 high energy electrons along with a hydrogen ion (H+)

Question 27

What happens after NADP+ carries the electrons and hydrogen bond

Answer 27

It absorbs the hydrogen atom and creates NADPH+

some energy from the electrons trapped inside

Question 28

What is an electron carrier?

Answer 28

a compound that can accept a pair of high energy electrons and transfer them along with most of the energy to another molecule

Question 29

Plants use sugars produced by photosynthesis to…

Answer 29

> produce complex carbon structures
provide energy for the synthesis of other compounds

Question 30

What is the equation for Photosynthesis in words

Answer 30

( light
Carbon dioxide + water ——–> sugars + oxygen