Question: A “biological death” occurs/takes place when
1. there is no pulse and heartbeat
2. pupils show no reaction to light
3. all the body cells die after a few hours of clinical death
4. pupils are fixed and dilated
Answer: 3
Question: The Yellow colour of human urine is due to a pigment called-
1. Cytochrome
2. Urochrome
3. Haemochrome
4. Phenolichrome
Answer: 2
Question: Which one of the following is a bacterial disease?
1. Herpes
2. Polio
3. Pox
4. Tetanus
Answer: 4
Question: What is meat by myopia?
1. Long-sightedness
2. Short-sightedness
3. Colour blindness
4. Night blindness
Answer: 2
Question: The percentage of glucose present in the normal urine is
1. 0.1%
2. 2%
3. 9.5%
4. 0%
Answer: 1
Question: Vacuoles are bound by a definite membrane in plant cells called
1. Plasma membrane
2. Tonoplast
3. Cell wall
4. None of the above
Answer: 2
Question: Which of the following plant diseases is not a bacterial disease?
1. Brown rot of potatoes
2. Citrus canker
3. Heart rot of beets
4. Red stripe of sugarcane
Answer: 3
Question: Which of the following plant disease is caused by bacteria?
1. Citrus dieback
2. Karnal bunt of wheat
3. Potato witches’ broom
4. Tundu disease of wheat
Answer: 4
Question: What is the role played by non-pathogenic bacteria?
1. They cause diseases
2. They do not cause diseases
3. They are of no use
4. They attack only plants
Answer: 2
Question: What is the bacterial disease in lime fruits?
1. Phytophthora
2. White rust
3. Citrus canker
4. Smut disease
Answer: 3
Question: The leaf blight of paddy is caused by
1. Bacteria
2. Virus
3. Nematodes
4. Fungus
Answer: 1
Question: Which of the following is a bacterial disease?
1. Early blight of potatoes
2. Loose smut of wheat
3. Red rot of sugarcane
4. Red stripe of sugarcane
Answer: 4
Question: The nucleus is absent in
1. Algae
2. Fungi
3. Escherichia coli
4. Angiosperm
Answer: 3
Question: Bacterial action changes dead leaves into:
1. Algae
2. Fungi
3. Humus
4. None of the above
Answer: 3
Question: A bacterium divides every minute and takes an hour to fill a cup. How much time will it take to fill half the cup?
1. 15 minutes
2. 30 minutes
3. 59 minutes
4. 60 minutes
Answer: 3
Question: The necrotic ring spot disease of stone fruits (cherry, peach, plum, etc.) is caused by
1. A bacterium
2. Fungal infection
3. Molybdenum deficiency
4. Virus
Answer: 4
Question: Which of the following disease is not caused by virus?
1. Ranikhet
2. Blu tongue
3. Babesiosis
4. Marek’s disease
Answer: 3
Question: Which of the following plant diseases is caused by a virus?
1. Aster yellows
2. Barley yellow dwarf
3. Curly top of sugar beets
4. All of the above
Answer: 4
Question: Much of our present-day knowledge in Molecular genetics has been obtained by using the bacterium E.coli. If we were to collect samples of this bacterium, where should we look for it?
1. Human intestine
2. Refuse dumps
3. Soil
4. Stagnant water
Answer: 1
Question: The two diseases that most often kill AIDS victims are
1.Kaposi’s sarcoma
2.Lymphangioma
3.Pneumocystis carinii pneumonia
4.Systemic Lupus erythromatosus
1. 1 and 2
2. 2 and 3
3. 1 and 3
4. 3 and 4
Answer: 3
Question: AIDS is caused by the organisms which are
1. Bacteria
2. Fungi
3. Viruses (HTLV III)
4. Protozoa
Answer: 3
Question: All of the following diseases are caused by virus except:
1. Jaundice
2. Influenza
3. Typhoid
4. Mumps
Answer: 3
Question: Consider the following statements and select your answer from the choices that follow: I. The patients nerves are damaged by polio. II. Tetanus is caused by virus.
1. Both are correct
2. II alone is correct
3. I alone is correct
4. Both are wrong.
Answer: 3