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WorksheetsModule 2 M/C Section Topic Exam
Total questions: 15
Worksheet time: 29mins
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
Which of the following statements is INCORRECT?
Our scientific understanding of the structure and functioning of plants has been developed by many scientists.
Hypotheses, theories and models are modified when required if new information and results indicate they are no longer correct.
Many theories about the functioning of plants over the years have been proven correct.
Successful collaboration of scientists is advantage to the understanding of scientific concepts.
The component that makes up the greatest percentage in human blood is:
red blood cells.
white blood cells
plasma.
red and white blood cells combined
The attraction of water molecules to each other is called:
adhesion.
cohesion.
attraction
transpirational pull.
The term given to (i) the movement of the products of photosynthesis throughout the plant and (ii) the direction of movement is:
(i) translocation and (ii) only one direction
(i) transpiration and (ii) only one direction
(i) transpiration and (ii) whichever direction is required
(i) translocation and (ii) whichever direction is required
Which radioactive isotope is most useful to study the biochemical processes involved with the conversion of carbon dioxide into glucose and other carbohydrates?
Carbon-14
Uranium-238
Potassium-40
Carbon-12
