Topic E (Respiration and Photosynthesis) Flashcards Preview

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Flashcards in Topic E (Respiration and Photosynthesis) Deck (27)
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1
Q

Respiration

A

Obtaining energy from food

2
Q

What are the two types of respiration?

A

Aerobic/Anaerobic

3
Q

What type of respiration releases more energy?

A

Aerobic

4
Q

In what two forms energy is released?

A

Heat + Chemical energy

5
Q

Word equation for aerobic respiration

A

Glucose + Oxygen –> Water + Carbon dioxide + energy

6
Q

What is the chemical formula of glucose?

A

C6H12O6

7
Q

Symbolic equation for aerobic respiration

A

C6H12O6 + 6O2 –> 6CO2 + 6H2O + energy

8
Q

What is the reverse process of aerobic respiration?

A

Photosynthesis

9
Q

Difference between aerobic and anaerobic respirations

A

Anaerobic doesn’t use oxygen + its products and reactants are different

10
Q

Word equation for anaerobic respiration in animals

A

Glucose –> Lactic acid + energy

11
Q

When does the body switch to anaerobic respiration

A

During vigorous exercise

12
Q

What does the build up of lactic acid in muscles leads to?

A

Pain and cramp

13
Q

Word equation for anaerobic respiration in plants

A

Glucose –> Ethanol + Carbon dioxide + energy

14
Q

Word equation for Photosynthesis

A

Carbon dioxide + water UNDER sunlight + chlorophyl –> Glucose + Oxygen

15
Q

Symbol equation for Photosynthesis

A

6CO2 + 6H2O –> C6H12O6 + 6O2

16
Q

Factors affecting photosynthesis (5)

A

1) Temperature 2) Light intensity 3) Light colour (wavelength) 4) Surface area of leaves 5) CO2 concentration

17
Q

What is the worst colour of the light to use for photosynthesis? Why?

A

Green, all of it gets reflected

18
Q

How does CO2 concentration affect the rate of photosynthesis

A

Usually the limited factor , low concentration in air

19
Q

How does temperature affect the rate of photosynthesis?

A

Optimum temperature for enzymes

20
Q

What is the limiting factor?

A

A factor which when increases results in the overall rate increasing

21
Q

How many limiting factors can there be at one moment?

A

Only ONE

22
Q

Adaptations of leaves to photosynthesis (4)

A

1) Broad 2) Most chloroplasts found in the palisade layer 3) Upper epidermis is transparent 4) Waxy cuticle

23
Q

What is the top layer of the leaf called?

A

Palisade layer

24
Q

How the breadth of leaves affect photosynthesis?

A

A larger surface area is exposed to the light

25
Q

How the fact that most chloroplasts found in the palisade layer affect photosynthesis?

A

It is the layer at the top, more light can get to it

26
Q

How does ‘upper epidermis is transparent’ affect photosynthesis?

A

The light can pass to the palisade layer

27
Q

How does waxy cuticle affect photosynthesis?

A

Reduces water loss through evaporation