B3: The Quiz (long) :)
Yeah basically :)
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- Created by: Nuha
- Created on: 19-05-12 14:59
What do all cells produce as a waste product of respiration?
Carbon Dioxide
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How do dissolved substances move?
Diffusion
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What is active transport?
Substances absorbed against the concentration gradient, requires energy from cellular respiration
3 of 43
What do water molecules pass across in osmosis?
Partially Permeable Membrane
4 of 43
How is the surface area of the lungs increased?
By alveoli
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The lungs are in the ____, which is separated from the ____ by the _____.
thorax, abdomen, diaphragm
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Why is an increased breathing rate useful in exercise?
More O2 can diffuse into the bloodstream, more CO2 can diffuse out of the bloodstream and into the air
7 of 43
How is the surface area of the small intestine increased?
Villi
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How do the capillaries absorb the products of digestion?
Active Transport and Diffusion
9 of 43
How is the surface area of the roots increased?
Root hairs
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What are the stomata used for?
To obtain CO2 from the air
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The loss of water from the surface of a plant is known as____.
Transpiration
12 of 43
Why do plants wilt?
To reduce surface area and therefore minimise water loss
13 of 43
Blood flows from the heart to the organs via the ____ and back to the heart from the body via the _____.
arteries, veins
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In which vessel does blood flow in the organs?
Capillaries
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Blood plasma transports ___ from the organs to the lungs.
CO2
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Blood plasma transports ____ from the liver to the kidneys.
Urea
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Blood plasma transports ____ from the gut to the other organs.
Soluble products of digestion
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Why does oxygen combine with in the RBCs when there is a high concentration of oxygen?
Haemoglobin
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What splits up when there is a low concentration of oxygen?
Oxyhaemoglobin
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What is there an increased demand for during exercise?
Energy
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What does the energy released in respiration allow muscles to do?
Contract
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Rate AND depth of breathing increases during exercise?
True
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What can arteries do during exercise?
Dilate
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____ stores are used by the muscles during exercise.
Glycogen
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What happens if there is insufficient oxygen reaching the muscles during exercise?
They start to respire anaerobically and become fatigued
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We have to obtain more O2 to oxidise the lactic acid remaining after exercise, so we puff and pant for longer, this is known as _____.
Oxygen debt
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There are four advantages of a kidney transplant and one disadvantage, which is the disadvantage?
Immuno-suppressant drugs must be taken
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What does the person's blood flow through in dialysis?
Partially Permeable Membranes
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What of these is not a precaution that needs to be taken when someone receives a donor kidney?
A full body scan
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What is the name of the large vessel in which micro-organisms can be grown?
Fermentors
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Why do industrial fermenters have an air supply?
To provide oxygen for aerobic respiration
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The water cooled jacket removes heat given off by micro-organisms in which process?
Respiration
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When does Penicillin start to be produced?
After most of the nutrients has been used up by Penicillium
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What is yeast used in?
Alcohol and Bread
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When is aerobic respiration of yeast useful?
In bread
36 of 43
Fermentation is....
When yeast respire anaerobically to produce ethanol, water and CO2
37 of 43
When the barley grains are allowed to germinate in the warmth, and then the starch is broken down into sugars, this is known as....
Malting
38 of 43
What is the energy source in wine making?
Natural sugars
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What causes the milk to coagulate in yoghurt and cheese production?
Lactic Acid
40 of 43
What temperature should micro-organisms be incubated at in a school lab?
25oC
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Okay so why should they not be kept at body temperature?
There is a risk of cultivating pathogens harmful to people
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What does the culture medium contain?
Carbohydrates
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Other cards in this set
Card 2
Front
How do dissolved substances move?
Back
Diffusion
Card 3
Front
What is active transport?
Back
Card 4
Front
What do water molecules pass across in osmosis?
Back
Card 5
Front
How is the surface area of the lungs increased?
Back
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