Biology Chapter 10 Flashcards Preview

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Flashcards in Biology Chapter 10 Deck (37):
1

Photosynthesis takes in --- and --- and produces ---?

Carbon dioxide,
Water,
Glucose

2

6 CO2 + 12 H2O ---->

C6H12O6 + 6 H2O + 6 O2

3

Autotrophs

Make organic molecules themselves by photosynthesis.
Eg: green plants, algae

4

Heterotrophs

Take in organic molecules ready made.
Eg: animals (feeding), fungi (decomposing)

5

Water comes into the leaf through

Veins from the roots

6

CO2 enters the leaf through

Small holes called stomata

7

Where are chloroplasts mainly?

On the top surface of the leaf

8

What are the two stages of photosynthesis?

Light reactions and Calvin cycle

9

Light reaction uses light energy

To form ATP and also split water into hydrogen and oxygen

10

What is added to NADP to make NADPH?

Hydrogen

11

Calvin cycle

Uses NADPH and ATP to form carbohydrate from carbon dioxide

12

Different colors of light are different

Wavelengths

13

Red light has a longer wavelength than

Blue light

14

Chlorophyll reflects --- but absorbs --- and ---.

green light,
red and blue light

15

Electron acceptor molecules hold high energy electrons to

stop them from wasting the energy as heat

16

A photosystem is

A chlorophyll molecule, electron acceptor, and other light gathering molecules like carotene

17

What is one idea to help the search for life on other planets?

Look for the characteristic wavelengths of light that are reflected by photosynthetic organisms

18

Where do the light reactions take place?

In the grana of the chloroplast

19

Photosynthesis is

A series of anabolic reactions that form carbohydrates.

20

Cyclic electron flow uses

photosystem I

21

How does the cyclic acid cycle produce ATP

Using a proton pump

22

Non-cyclic electron flow

Uses photosystems I and II

Produces ATP and NADPH molecules

Splits water to get electrons from the hydrogen

23

Calvin cycle takes place where?

In the stroma of the chloroplast

24

The Calvin cycle takes in --- and produces ---

CO2,
Carbohydrate (Glyceraldehyde phosphate)

25

The Calvin cycle uses the --- and --- that were produced in the light reactions

ATP,
NADPH

26

In artificial photosynthesis, light is used to

Split water and produce hydrogen

27

Hydrogen powered cars

Have a range of over 300 miles,
Can be refueled in a few minutes

28

Glyceraldehyde phosphate is used to make

Glucose (C6H12O6)

29

Glucose can be stored in the plant as

Starch

30

Other enzymes convert carbohydrates into

Lipids

31

Plants can make proteins if they have

Nitrate (absorbed into roots from fertilizer)

32

Plants can make Nucleic acids if they have

Phosphate

33

The three different types of plants are

C3 plants

C4 plants

CAM plants

34

C3 plants

Typical plants that open their stomata during the day and close their stomata at night.

Commonly in cool areas: Canada

35

C4 plants

Open their stomata only briefly during the day.

Mainly tropical plants: sugarcane

36

C4 plants store CO2 as the 4 carbon sugar

Oxaloacetate

37

CAM plants

Only open their stomata at night to conserve water.

Desert plants: cactus