Size And Shape

Question 1

Fill in this table.

Answer 1

Question 2

Are eukaryotic or prokaryotic cells bigger?

Answer 2

Eukaryotic.

Question 3

How do you calculate surface area of a sphere?

Answer 3

4πr²

Question 4

How do you calculate volume of a sphere?

Answer 4

(4/3)πr²

Question 5

How do you calculate surface/volume ratio?

Answer 5

slide 9

Question 6

What are the two advantages of microorganisms being small?

Answer 6

1. Better diffusion of nutrients and waste products. 2. Increased metabolism and more rapid growth.

Question 7

A virus particle is a genetic element that can do what two things?

Answer 7

1. Replicate independently of a cells chromosome, but not independently of a cell. 2. Will only replicate inside a cell.

Question 8

What is the common unit for a virus?

Answer 8

Nanometre (nm).

Question 9

What is the smallest virus particle? What size is it in diameter?

Answer 9

Polio and it is 28nm.

Question 10

What is the largest virus particle? What size is it in diameter?

Answer 10

Smallpox and it is 200nm.

Question 11

The diameter of bacteria ranges from what?

Answer 11

0.1um to more than 50um.