metabolism

Question 1

what is metabolism?

Answer 1

chemical reactions that take place in cells

Question 2

what are the 2 types of metabolic reactions?

Answer 2

catabolic metabolism

anabolic metabolism

Question 3

what do cells require for efficient metabolism?

Answer 3

oxygen and nutrients

Question 4

what are catabolic reactions?

Answer 4

the reaction in which large molecules are broken down into smaller ones

• cellular respiration
• digestion

Question 5

what are anabolic reactions?

Answer 5

the reaction in which small molecules are built up into larger ones

Question 6

what are organic compounds?

Answer 6

molecules that contain a carbon chain

Question 7

what are carbohydrates?

Answer 7

• saccharides
• used for energy
• monomer = glucose

monosaccharides = simple sugar = sucrose (fructose & glucose)

disaccharides = 2 simple sugars = fructose

polysaccharides = many simple sugars = starch

Question 8

what are proteins?

Answer 8

• polypeptides
• amino acids are joined together in special sequences by your body to make its proteins
• monomer = amino acids

polypeptides = many proteins

enzymes = protease

Question 9

what are fats?

Answer 9

• fats get broken down into fatty acids + glycerol by the enzyme lipase
• monomer = fatty acid + glycerol
• most common fat = triglyceride

enzyme = lipase

Question 10

what are nutrients?

Answer 10

• water = fluid which other substances are dissolved
• carbs = main source of energy
• lipids = broken down into fatty acid and glycerol = broken down to release energy
• proteins = broken into amino acids
• minerals = co-factors for enzymes