Day 22 (biology)

Question 1

What does biurets solution test for?

Answer 1

Proteins

Question 2

What is the positive biurets test?

Answer 2

Purple

Question 3

What do we call a biological catalyst?

Answer 3

Enzyme

Question 4

What do we call the biological reactions in our body?

Answer 4

Metabolic

Question 5

What do we call the substance the enzyme builds up or breaks down?

Answer 5

Substrate

Question 6

Which bit of the enzyme binds to the substrate?

Answer 6

Active site

Question 7

What do we call the temperature where the enzyme works fastest?

Answer 7

Optimum

Question 8

Why does an enzyme work more slowly at lower temperatures?

Answer 8

The enzyme and substrate have less kinetic energy so there are fewer collisions

Question 9

What happens to an enzyme at high temperatures?

Answer 9

It is denatured, the active site no longer fits the substrate

Question 10

What word describes the way the enzyme and active site fit together like a lock and key?

Answer 10

Complementary

Question 11

What is an enzyme made of?

Answer 11

Protein

Question 12

Which pH does an enzyme work best at?

Answer 12

It’s optimum

Question 13

Does an enzyme become denatured when the pH is too high or too low?

Answer 13

Both

Question 14

What is the movement of particles from a low concentration to a high concentration against the concentration gradient using the energy released in respiration.

Answer 14

Active transport

Question 15

What is the movement of particles from a higher to lower concentration?

Answer 15

Diffusion