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Biology > Bioenergetics > Flashcards

Bioenergetics Flashcards

1
Q

What’s photosynthesis ?

A

It’s process plants use to make food

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2
Q

Whats the word equation for photosynthesis ?

A

Carbon diode + water —> glucose + oxygen

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3
Q

What’s the symbol equation for photosynthesis ?

A

6 CO2 + 6 H2O —> C6 H12 O6 + 6 02

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4
Q

What type of reaction is photosynthesis ?

A

Endothermic reaction because energy is taken in

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5
Q

How is the light energy required for photosynthesis absorbed ?

A

Chlorophyll in the leaves

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6
Q

what part of the leaf does carbon dioxide enter and leave the plant ?

A

Stomata

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7
Q

Which part of the plant does water enter ?

A

Roots

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8
Q

We’re is the water transferred through in the leaf ?

A

Xylem

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9
Q

What is some of glucose used for in photosynthesis ?

A

Respiration

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10
Q

What can glucose the by product of photosynthesis be used for ?

A

Starch

Cellulose

amino acids

Lipids

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11
Q

What factors affect photosynthesis?

A

Light intensity

Temperature

Concentration

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12
Q

What colour is chlorophyll and why is it good ?

A

It’s green and this means it can absorb the colours of red and blue from the electromagnetic spectrum which make up light

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13
Q

Whats the method for the practical pondweed ?

A
  1. Set up some tubes containing sodium solution
  2. Put pieces of pondweed in the tubes
  3. Make sure the pondweed is 10 cm from the lamp
  4. Allow to stand for 5 mins and count bubbles
  5. Calculate average bubbles per minute
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14
Q

what types of process is respiration ?

A

Exothermic

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15
Q

What does respiration allow for animals ?

A

Maintain body temperature and warmth

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16
Q

Whats respiration using energy called ?

A

Aerobic respiration

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17
Q

Whats respiration without oxygen called ?

A

Anaerobic respiration

18
Q

What’s the word equation for respiration ?

A

Opposite to photosynthesis + energy released

Glucose + oxygen —> carbon dioxide + water + energy

19
Q

Where is most of the energy released for respiration ?

A

Mitochondria

20
Q

What is glucose converted into in the muscle ?

A

Lactic acid

21
Q

How much energy is produced in aerobic respiration ?

A

Big amount

22
Q

How much energy is released in anaerobic respiration ?

A

Small amount

23
Q

What does a build up of lactic acid produce ?

A

Oxygen debt

24
Q

What are limiting factors ?

A

Things that reduce the rate of reaction

25
Q

What is photosynthesis ?

A

The process, by which plants make food using carbon dioxide, water and light

26
Q

What’s a chloroplast ?

A

The organelles by photosynthesis takes place

27
Q

What is chlorophyll ?

A

The green pigment contained in the chloroplast

28
Q

What’s the word equation for photosynthesis ?

A

Carbon dioxide + water = oxygen + glucose

29
Q

What are some adaptations of a leaf ?

A

They have a large surface area to absorb as much

They are thin for diffusion

They have stomata for diffusion

They have xylem for water transport

30
Q

What’s a xylem ?

A

Transports water for the plant

31
Q

What is glucose also used to in a plant ?

A

For storage of strach

32
Q

What’s cellulose used for ?

A

Strength the cells walls made from glucose

33
Q

What’s aerobic respiration ?

A

With oxygen that produces energy

34
Q

What’s anaerobic respiration ?

A

Without oxygen and releases energy

35
Q

What’s breathing ?

A

The inflation and deflation of the lungs

36
Q

When does lactic acid build up ?

A

Anaerobic respiration as a byproduct

37
Q

What is oxygen debt ?

A

The extra oxygen needed to be taken into the body for after exercise to prevent lactic acid

38
Q

Whats the word equation for aerobic respiration ?

A

Glucose + oxygen = carbon dioxide + water

39
Q

What’s the word equation for anaerobic respiration ?

A

Glucose = lactic acid

40
Q

What are the effects of exercise ?

A

Increase heart rate

Increase breathing rate and volume

Increase temperature

More glycogen stores

41
Q

What’s metabolism ?

A

The sum of all the chemical reactions taken place in the body

42
Q

What does the liver do ?

A

Breaks down ethanol in alcoholic drinks

Biology (7 decks)

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