Chapter 3 (3.1)

Question 1

What do every cells need for cell respiration and to obtain energy?

Answer 1

-Oxygen (cell respiration)
-Nutrients (energy)

Question 2

What is eliminated by cells to the external environment?

Answer 2

-Carbon dioxide
-Other waste products

Question 3

What do cells exchange minerals from their surrounding through their membrane?

Answer 3

Diffusion

Question 4

How does diffusion work?

Answer 4

Minerals such as oxygen and glucose pass through the cell membrane due to the difference in concentration gradient.

Question 5

What does the transport system differs to?

Answer 5

-Simple organism
-Complex organism

Question 6

What are examples of simple organism?

Answer 6

-Amoeba
-Paramecium
-Euglena

Question 7

What is the transport system for a complex organism called?

Answer 7

Circulatory system

Question 8

What are the functions of circulatory system?

Answer 8

-Transport needed material such as oxygen and glucose to the cells of the body
-Remove waste products such as carbon dioxide and ammonia
-Fight against diseases by transporting white blood cells throughout the body

Question 9

What are the difference between the functions of simple organism and complex organism?

Answer 9

Simple organism
-To absorb nutrients from surrounding of the cell
-Expel waste

Complex organism
-To transport nutrient and waste to and from the body
-Fight off diseases by transporting white blood cells