Biochemistry and metabolism

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  • Created by: racheon
  • Created on: 11-02-14 18:19
Define risk factor.
A factor that increases your chance of developing a particular disease.
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What do the nutrients any organism takes in do?
Build and maintain a healthy body.
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How do the nutrients any organisms takes in build and maintain a healthy body? (2)
By becoming part of the body and being used to provide energy needed to drive metabolism.
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What happens to substances if they can't be digested or take part in metabolic processes, and how have organisms come to do this?
They're removed, and organisms have adapted.
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What also helps to remove some waste products?
Fibre.
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What is a diet low in fibre?
A risk factor for a number of diseases.
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What are all organisms made up of?
Thousands of different molecules.
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What must an organism do in order to survive?
Make or take in all the molecules required.
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What groups do the molecules required in an organism fall into?
A small number of chemical groups with differing roles within the organism.
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What is fibre usually included in?
The 'nutrients required' list for humans.
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What is fibre?
A type of carbohydrate.
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What are the key biological molecules? (4)
Carbohydrates, lipids, proteins, and nucleic acids.
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What are the structures of the key biological molecules closely related to?
Their functions within living organisms.
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What are the chemical elements found in biological molecules? (4)
Carbon, hydrogen, oxygen, and nitrogen.
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What percentage of carbon, hydrogen, oxygen, and nitrogen make up all organisms?
Over 99%.
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What elements do a few biological molecules contains? (2)
Phosphorus or sulfur.
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What do we consider differently from all other biological molecules?
Minerals.
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Why is water sometimes described as a biological molecule?
Because of it's importance to life.
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Define metabolism.
The sum total of all the biochemical reactions taking place in the cells of an organism.
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What does biochemistry refer to?
The chemical reactions involving biological molecules.
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What might metabolic reactions be involved in breaking?
Larger molecules into smaller ones.
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What are some metabolic reactions called?
Catabolic reactions.
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What are reactions involving building smaller molecules into larger ones called?
Anabolic reaction.
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What is organic chemistry?
The study of chemical reactions that involve carbon.
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What are all the biological molecules we shall consider based on?
Carbon.
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What can carbon atoms bond together to form?
Long chains and rings.
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What can carbon chains and rings also bond onto, and what does this form?
Other atoms to form many different molecules with different structures and properties.
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What kind of atom is carbon due to all this multiple-bonding?
A framework atom.
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What do all organisms have and require in order to survive?
They all have a metabolism and require nutrients .
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Other cards in this set

Card 2

Front

What do the nutrients any organism takes in do?

Back

Build and maintain a healthy body.

Card 3

Front

How do the nutrients any organisms takes in build and maintain a healthy body? (2)

Back

Preview of the front of card 3

Card 4

Front

What happens to substances if they can't be digested or take part in metabolic processes, and how have organisms come to do this?

Back

Preview of the front of card 4

Card 5

Front

What also helps to remove some waste products?

Back

Preview of the front of card 5
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