Module 2 M/C Section Topic Exam

What is the difference between colonial and multicellular organisms?

• Colonial organisms are aquatic.

• Colonial organisms have different types of cells.

• Multicellular organisms contain specialised cells.

• Multicellular organisms are composed of less cells.

The correct sequence of “organisational levels” in a multicellular life-form is:

• organ, system, tissue, cell.

• cell, tissue, system, organ.

• cell, organism, system, tissue.

• cell, tissue, organ, system.

Which of the following is NOT an essential feature of a gas exchange system?

• Close contact with the blood supply.

• Large surface area.

• Strong protective shielding.

• Moist membrane.

An animal’s respiratory system consists of a series of holes along the body which allow air to circulate into a network of tiny tubes throughout the tissues. This animal is probably a/an:

• insect.

• frog.

• fish.

• reptile.

A structural feature which helps the functioning of the leaf is that the cells at “P”:

• are transparent

• are loosely packed

• contain many chloroplasts

• open up to let gases in/out

A basic feature of all multicellular life-forms is:

• each cell is capable of many different functions

• cells are specialised for a specific function.

• organs are made of just one type of tissue.

• each tissue contains many types of cells.

The human heart is shown. Identify the blood vessel which takes deoxygenated blood to the lungs.

• A

• B

• C

• D

The diagram shows part of the human digestive system. Which one of the following is a major function of structure X?

• The production of faeces.

• The absorption of water and vitamins into the blood.

• The absorption of glucose into the blood.

• The secretion of hydrochloric acid.

Which of the following is a correct advantage of either an open or closed circulatory system?

• A closed system has improved oxygen carrying capacity.

• An open system is efficient for large, multicellular animals.

• A strong, multi chambered pump is required in an open system.

• A closed system does not have capillaries; it has a fluid that bathes the cells with oxygen.

Where does physical digestion begin?

• Mouth

• Stomach

• Small Intestine

• Large Intestine