M6 Deck - Nutrition (Photosynthesis)

Question 1

What is Photosynthesis?

Answer 1

the process used by plants to convert energy of light, water, oxygen and carbon dioxide into a glucose used for energy

Question 2

What are the three types of nutrition?

Answer 2

Autotroph
Heterotroph
Sapprophyte

Question 3

What is autotrophic nutrition?

Answer 3

plants that make their own food; “self feeders”.

Question 4

What is heterotrophic nutrition?

Answer 4

consumers that feed on other organisms

Question 5

What is saprophyte?

Answer 5

decomposers that feed on the dead autotrophs and heterotrophs

Question 6

What is glucose used for?

Answer 6

it used for the plant to make all the carbohydrates, fats and proteins it needs.

Question 7

Why must autotrophic nutrition occur before heterotrophic nutrition?

Answer 7

first the plant takes in inorganic substances to make then organic then animals can feed on the plants

Question 8

Why are saprophytes valuable?

Answer 8

they are valuable because the feed on the dead plants and animals and cycle their materials back to earth

Question 9

What is the simple equation for Photosynthesis?

Answer 9

6CO2 + 6H2O —–> C12 H6 06 + 6O2

carbon dioxide + water —> glucose + oxygen

Question 10

What is chlorophyll?

Answer 10

a complex green pigment found inside the chloroplast used to trap the light energy.

Question 11

What are the two main stages in photosynthesis?

Answer 11

the light-dependent stage and the light-independent stage

Question 12

What 2 things happens in the light-dependent stage?

Answer 12

• the energy trapped by chlorophyll is used to split water (H2O) into hydrogen and oxygen.
• The oxygen is a waste and gets diffused out of the leaf.

Question 13

Which stage of photosynthesis does not need light?

Answer 13

the light-independent stage

Question 14

What happens in the light-independent stage?

Answer 14

• the hydrogen combines with the carbon dioxide (CO2) to make carbohydrates (aka. glucose)

Question 15

Which organ is specialized for photosynthesis?

Answer 15

the leaf has many cells arranged in a way suited for photosynthesis.

Question 16

Why are plants seen to be green?

Answer 16

because the chlorophyll in the chloroplast absorbs all color from the light spectrum except green color spectrum

Question 17

What two substances combine to produce carbohydrates?

Answer 17

carbon dioxide and water combine to produce carbohydrates (glucose).

Question 18

blank card sorry

Answer 18

ok hi

Question 19

What are necessary factors for photosynthesis?

Answer 19

1. Carbon Dioxide
2. Water
3. Sunlight
4. Chlorophyll

Question 20

What do carbohydrates release and how?

Answer 20

they release energy by cell respiration

Question 21

Carbohydrates convert into..

Answer 21

starch for storage because glucose is not a good storage molecule

Question 22

What gets transported through the phloem?

Answer 22

carbohydrates that change into sucrose

Question 23

Carbohydrates combine to form which two substances and what are they used for?

Answer 23

fats and oils; they are used to form cell membrane and to store food.

Question 24

how are protein molecules formed?

Answer 24

they are formed by carbohydrates joining together with mineral salts from soil.

Question 25

Photosynthesis takes place in which part of a plant cell?

Answer 25

The chloroplasts

Question 26

Plants can convert sugars into protein using which mineral ion obtained from the soil?

Answer 26

Nitrate Proteins and amino acids contain nitrogen which enters the plant from the soil in the form of nitrate ions

Question 27

Where does the water needed for photosynthesis usually come from in plants?

Answer 27

Soil Root hairs absorb the water needed by the plant for photosynthesis from the soil

Question 28

If the rate of photosynthesis is reduced, which of the following important processes is also reduced?

Answer 28

Growth: More photosynthesis means more sugars which can be used to grow a bigger plant

Question 29

Photosynthesis is a process in...

Answer 29

plants and algae: Animals cannot photosynthesise and rely on plants to provide their food either directly (herbivores) or indirectly by eating other animals

Question 30

Various factors can limit the rate of photosynthesis. Which of these variables can limit photosynthesis?

Answer 30

Carbon dioxide concentration : there is normally sufficient carbon dioxide in the atmosphere to keep plants fully supplied

Question 31

Which very important gas is given off as a by-product of photosynthesis?

Answer 31

oxygen

Question 32

Farmers will use heated greenhouses for faster growth of crops. This increases photosynthesis by increasing the...

Answer 32

temperature: Photosynthesis is a series of chemical reactions. Chemical reactions usually increase in speed as temperature is increased