Biology B2

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What's the function of the nucleus?
It contains all of the genetic material of the cell, and controls all of the reaction for that cell.
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What is the function of the cytoplasm?
It is where all of the chemical reactions take place.
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What is the function of the cell membrane?
It controls what goes in and out of the cell.
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What is the function of the ribosomes?
For proteinsynthesis.
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What is the function of the mitochondria?
It is the site of respiration and is where energy is produced in the cell (ATP).
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Where in the mitochondria does respiration take place?
In the cristae.
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Where in the body would you find lots of mitochondria?
Muscle and liver cells.
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What is the cell wall made from?
Cellulose.
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What is the function of the cell wall?
It gives the cell structure and support.
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What is the function of the chloroplasts?
They contain chlorophyll which is used in photosynthesis.
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What is the function of the permanent vacuole?
It stores glucose as starch in a plant cell.
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Name four uses of bacteria and yeast.
Bread, ethanol, creating cures, sewage treatment and bio-leaching.
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Name the ring of DNA in a bacterium?
Plasmid.
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What is the function of the flagella?
It is used for the movement of the bacteruim.
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Define tissue.
A group of similar cells that work together to form a common function.
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Name three specialist tissues in plant.
Xylem, phloem and the mesophyll.
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Symbol equation of photosynthesis?
H2O + CO2 --Light--> O2+ C6H12O6
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What is the test for starch?
Iodine goes blue/black.
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What are the limiting factors of photosynthesis?
Light intensity, carbon dioxide, water and temperature.
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What is the function of the cuticle?
It is the top layer of the leaf and makes the leaf water proof so it doesn't loose water.
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What are the holes in the bottom layer of the leaf called?
The Stomata, they close at night to stop the leaf loosing water.
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What do plants use glucose for?
Respiration, storage and to produce new chemicals.
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What is the binding place of the substrate?
The Active Site.
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What is the name when the substrate has binded to the enzyme?
Enzyme Substrate Complex.
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What is the acid used to break down food in the stomach?
Hydrochloric acid, HCl, pH 2.
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Where are enzymes created?
Pancreas.
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What enzyme breaks down starch and where is it found? What does it form?
Amylase, found in the small intestine. Glucose and water.
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What enzyme is used to break down protein and where is it found? What does it form?
Protease, found in the pancreas. Amino acids.
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What enzyme breaks down lipids and where is it found? What does it form?
Lipase, found in the saliva. Breaks down to form fatty acids and glycerol.
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What are the functions of bile?
Neutralises stomach acid to produce alkaline conditions for enzymes. It also emulsifies fat.
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Where is lipase produced?
In the pancreas and small intestine.
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Through what process is ethanol produced?
Fermentation.
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Define diffusion?
The movement of molecules from a region of high concentration to a low concentration through a partially permeable membrane until equilibrium is reached.
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Name a substance that moves via diffusion?
Oxygen, carbon dioxide or water.
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Why glucose get converted to starch?
So it doesn't the water potential of the plant because starch is insoluble.
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Define catalyst.
It is a substance that speed up the rate of a reaction without getting used up.
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What happens to an enzyme once the temperature goes over 40?
The enzyme denatures because the shape of the active site becomes deformed.
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What enzyme changes glucose into fructose?
Isomerase?
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What do your muscles convert your glucose into and why?
Glycogen because it is insoluble.
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What is produced in anaerobic respiration?
Lactic acid.
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Other cards in this set

Card 2

Front

What is the function of the cytoplasm?

Back

It is where all of the chemical reactions take place.

Card 3

Front

What is the function of the cell membrane?

Back

Preview of the front of card 3

Card 4

Front

What is the function of the ribosomes?

Back

Preview of the front of card 4

Card 5

Front

What is the function of the mitochondria?

Back

Preview of the front of card 5
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