Biologie1 11-20

Question 1

11.What part of the enzyme does the
substrate bind to?

Answer 1

active site

Question 2

12. State 4 factors that affect the rate of an
    enzyme controlled reaction.

Answer 2

Temperature, pH, Concentration of
enzyme, Substrate concentration

Question 3

13.What happens to an enzyme when the
temperature goes above its optimum?

Answer 3

The active site changes shape causing
the enzyme to denature

Question 4

14.Why do enzymes not work well at lower temperature?

Answer 4

Less kinetic energy, the do not collide
often with the substrate to cause
reactions

Question 5

15.Describe the structure of DNA.

Answer 5

-A polymer
-Double helix.

Question 6

16.What is the function of a gene?

Answer 6

To code for a specific protein.

Question 7

17.Put the following in order of size.
Smallest to largest
Nucleus, Cell, Chromosome, Gene

Answer 7

Gene < Chromosome< Nucleus < Cell

Question 8

18. What are the three parts that make up a nucleotide?

Answer 8

Phosphate, Base and Sugar

Question 9

19.How do the bases in DNA pair up

Answer 9

A-T, G-C

Question 10

20. What is a polymer?

Answer 10

A molecule made up of a long chain of
repeating units (e.g. DNA, Starch or Proteins)