cell metabolism and enzymes

Question 1

what is cell metabolism

Answer 1

is every single chemical reaction happening inside a cell makes up that cells metabolism

Question 2

what are the two types of chemical reactions

Answer 2

• anabolic reactions

- catabolic reactions

Question 3

what is a catabolic reaction

Answer 3

a catabolic reaction is when a large molecule is broken down into smaller molecules

Question 4

what is an example of a catabolic reaction

Answer 4

glucose molecules are broken down to produce energy

Question 5

draw a labelled diagram of a catabolic reaction

Answer 5

are you right

Question 6

what is the active site

Answer 6

the active site is where the bond is physically broken by the enzymes. The plus’ and negatives interfere with the bond

Question 7

what is an anabolic reaction

Answer 7

two small molecules are joined together to form larger molecules

Question 8

what is an example of an anabolic reaction

Answer 8

amino acids joining together to form proteins

Question 9

draw a labelled diagram of an anabolic reaction

Answer 9

are you right

Question 10

what are enzymes dot points

Answer 10

• made out of protein
• act on other substances: substrates
• are specific
• enzymes are involved in the reaction but are not part of it

Question 11

what are co-factors

Answer 11

• co-factors are non-protein parts of the enzyme
• the co-factor will change the shape of the enzyme thereby increasing the rate of reaction or completing the shape so that the enzyme can react with its specific substrate

Question 12

what are co-enzymes

Answer 12

organic molecules i.e vitamin B

Question 13

what is an activating ion

Answer 13

inorganic ions i.e calcium, sodium, magnesium (minerals)

Question 14

what does denature mean

Answer 14

when an enzyme becomes denatured it changes shape and so no longer fits in the substrate

Question 15

what is an enzyme in sentence form

Answer 15

it is a protein which speeds up chemical changes without being altered in the process