Biology Unit 2 GCSE (AQA)

Created by: Abbie
Created on: 22-01-12 15:26

What is diffusion?

the movement of particles from a high concentration to a low concentration

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What is osmosis?

the movement of water particles from a high concentration of water to a low concentration of water through a partially permamble membrame

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How can you gain an energy efficent diet?

By eating lower down the food chain

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What is photosynthesis?

the process by which plants make their own food

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What substance in plants is needed for photosynthesis?

Chloropyhll

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What is a by product of respiration?

Oxygen

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Factors that affect the RATE of photosynthesis are:

Temperature, Carbon dioxide, Light

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Where does photosynthesis take place in the leaf?

Palliside Layer

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Yellow leaves are a sign of deffiency of what mineral?

Magnesium

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Decomposers such as bacteria and fungi, work best in moist conditions because..

they reproduce quickly in moist conditions

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Carbon dioxide leaves the atmosphere by:

photosynthesis

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Enzymes are..

biological catalysts

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Enzymes work best at:

37-40 degrees

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What is Starch broken down into?

Glucose

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What enzyme breaks down Fats?

Lipase

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Protease is produced in:

Pancreas, Stomach, Small Intestine

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What acid is produced in the stomach to kill bacteria?

Hydrochloric acid

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What does bile do to food?

Neaurlises it

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The pancreas releases what hormone when blood sugar levels are HIGH?

Insulin

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The pancreas releases what hormone when blood sugar levels are LOW?

Glucagon

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When the body is cold, blood supply to the surface of skin is reduced. This is called:

Vasoconstriction

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Mitosis is used to make:

Body cells

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In Meiosis the cells divide twice, true or false?

True

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Huntingtons disease effects what part of the body?

Nervous system

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Cystic Fibrosis is carried on..

the recessive allele

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Other cards in this set

Card 2

Front

What is osmosis?

Back

the movement of water particles from a high concentration of water to a low concentration of water through a partially permamble membrame

Card 3

Front

How can you gain an energy efficent diet?

Back

Card 4

Front

What is photosynthesis?

Back

Card 5

Front

What substance in plants is needed for photosynthesis?

Back

View more cards

Comments

Report Sun 22nd January, 2012 @ 17:31

This was rly helpful!

Well done! :)

Report Mon 23rd January, 2012 @ 14:09

i <3 dis quiz bby

Report Mon 23rd January, 2012 @ 14:10

its soooo gud am well gonna pass now :D

Report Mon 23rd January, 2012 @ 14:12

whoever made dis quiz is bumting bby

Ben

Report Mon 23rd January, 2012 @ 17:46

Nice quiz, no ridiculous answers like other quizzes!

hamza

Report Mon 23rd January, 2012 @ 20:13

excellent quiz exam is tommorow and i am confident thanks

Amel Ismail

Report Tue 31st January, 2012 @ 21:49

I got 60%! yaay

Student

Report Thu 17th May, 2012 @ 10:16

Carbon dioxide leaves the atmosphere by:

respiration
photosynthesis
burning fossil fuels
animals eating plants

it can be all of them except photoshythesis?!?!?!?!

Vanessa

Report Sun 20th May, 2012 @ 11:42

really good!

Jonathan Foulston

Report Sun 20th May, 2012 @ 17:36

thanks! this helped a lot! got 66%!

anthony

Report Sun 20th May, 2012 @ 18:02

Student wrote:

Carbon dioxide leaves the atmosphere by:

respiration
photosynthesis
burning fossil fuels
animals eating plants

it can be all of them except photoshythesis?!?!?!?!

You're thinking of entering the atmosphere

Max

Report Sun 20th May, 2012 @ 19:00

yooooooo, byproduct of respiration is oxygen? I dont think so, its CO2 my friend, but otheriwse top quiz only for the champion within you.

CookieMonster_4

Report Wed 30th May, 2012 @ 07:51

good job the exam is today D: !!!!!!!!!!!!!

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Biology Unit 2 GCSE (AQA)