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Question-1
A biological method of food preservation is:
(A)
Freezing
(B)
Drying
(C)
Fermentation
(D)
Adding salt
Question-2
Each of the following statements concerning Candida albicans is correct except:
(A)
C. albicans is budding yeast that forms psuedohypae when it invades tissue
(B)
C. Albicans cause thrush
(C)
C. Albicans is transmitted primarily by respiratory aerosol
(D)
Impaired cell mediated immunity is an important predisposing factor to disease
Question-3
The organisms used in the process of fermentation:
(A)
Metabolize all the oxygen in food
(B)
Produce water in the food
(C)
Utilize all the nutrients in a food
(D)
Produce products, such as acids, that inhibit the growth of other organisms
Question-4
The factor that is least important to control in order to limit food - borne illness is:
(A)
Presence of pesticides
(B)
Presence of microbes
(C)
Temperature of food
(D)
Time of incubation
Question-5
Substances used to preserve foods by lowering the PH are:
(A)
Vinegar and citric acid
(B)
Smoke and irradiation
(C)
Baking power and soda
(D)
Salt and sugar
Question-6
A good second line of defence is:
(A)
Hospital acquired infections
(B)
Washing of hands
(C)
Immunization
(D)
Infectious agents
Question-7
AIDS is due to:
(A)
Reduction in number of helper T - cells
(B)
Reduction in number of killer T - cells
(C)
Auto - immunity
(D)
Non - production of interferon's
Question-8
Which statement about gonorrhea is true?
(A)
The infection is not obvious or painful for men
(B)
The infection is usually obvious and painful for women
(C)
The earliest symptom is a flat, painless sore or blister.
(D)
In women, the infection can invade the cervix.
Question-9
Immuno-deficiency syndrome could develop due to:
(A)
Defective liver
(B)
Defective thymus
(C)
AIDS Virus
(D)
Weak immune system
Question-10
All of the following diseases are caused by bacteria except:
(A)
Plague
(B)
Yellow fever
(C)
Typhus
(D)
Cholera
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Cambridge Secondary Grade 9
IGCSE
Practice in Related Chapters
The Interdependence of Living Organisms
Feeding
Keeping Healthy
Transport in Plants
Classification
Cells and Tissues
Movement in and out of Cells
Personal Health
Animal Nutrition
Reproduction
Sensitivity
Cells the Building Blocks
Genetics
The Skeleton, Muscles and Movement
A Sexual Reproduction and Cloning Plants
The Senses
Survival
Co-ordination
Energy for Respiration
The Chemicals of Living Cells
How Substances Get In and Out of Cells
Plants for Food
Photosynthesis and Nutrition in Plants
Plant Structure and Function
Food and Diet
The Human Impact on the Environment
Digestion, Absorption and Use of Food
The Blood Circulatory System
Breathing
Excretion and the Kidneys
Human Reproduction
Classification
Conservation
Micro Organisms
Reproduction in Flowering Plants
Movement and Locomotion
Growth and Development
Disease: causes, transmission and control
Ecosystems
Population
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