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Biology Unit Nat 5 > Respiration > Flashcards

Flashcards in Respiration Deck (20)
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1
Q

Method to measure the energy contained in food

A
  1. Measure 1g of food,
  2. Burn sample under 10ml water,
  3. Measure temperature increase of water
2
Q

Mitochondria is the site of

A

ATP production

3
Q

ATP is a high energy compound which is able to

A

Release and store energy where and when it is needed in the cell eg. Never impulse transmission, muscle contraction, protein synthesis, cell division, active transport

4
Q

Cells requiring more energy have

A

More mitochondria eg muscle, never and sperm cells

5
Q

Energy released from the breakdown of glucose is used to synthesis

A

ATP from ADP and inorganic Phosphate. The ATP can then be used by the drop as an energy source

6
Q

What’s respiration?

A

The breakdown of glucose by enzymes to generate ATP

7
Q

Difference between aerobic respiration and anaerobic respiration is …

A

Aerobic occurs when oxygen is present and anaerobic occurs when no oxygen is present

8
Q

Some energy is released from respiration as hear from cells but most is for….

A

Cellular activities such as muscle contraction, cell division, protein synthesis and transmission of never impulses

9
Q

First stage of respiration is called

A

Glycolysis and is common to aerobic and anaerobic respiration

10
Q

Glycolysis involves the breakdown of…..

A

Glucose into pyruvate with the release of 2 molecules of ATP

11
Q

Aerobic respiration occurs when oxygen is present. Oxygen is added to pyruvate to

A

Produce carbon dioxide and water and 36 ATPS

12
Q

During aerobic respiration in animals and plants the useful product is …..

A

ATP (38 molecules of ATP are produced per one molecule of glucose oxidised)

13
Q

Two waste products of aerobic respiration is…..

A

Carbon dioxide and water

14
Q

Anaerobic respiration occurs when

A

No oxygen is present

15
Q

During anaerobic respiration in animal and plants the useful product is

A

ATP ( 2 molecules of ATP are produced per one glucose molecule oxidised)

16
Q

In the absence of oxygen animal cells convert the…..

A

Pyruvate made in glycolysis into the waster product lactic acid

17
Q

Lactic acid causes muscles to…

A

Feel sore and fatigue

18
Q

Lactic acid build up (oxygen debt)….

A

Is reserved when oxygen is available

19
Q

In the absence of oxygen plant and yeast cells irreversible convert the pyruvate made in glycolysis into…..

A

Ethanol and carbon dioxide as waste end products this is called fermentation

20
Q

The energy stored in food and the units it’s measure in is…

A

Chemical energy and units are kJ