Question: Despite the application of scientific method, and equal efforts by thousands of eminent scientists, with the best available techniques and tools, which of the following still remains a challenge?
1. Tuberculosis
2. Polio
3. Cancer
4. Goitre
Answer: 3
Question: Cell wall of chloroplast is removed, the remaining is called
1. Etioplast
2. Aleuroplast
3. Amylopast
4. Protoplat
Answer: 4
Question: Cell recognition and adhesion occur due to biochemicals of cell membrane named
1. Proteins
2. Lipids
3. Proteins and lipids
4. Glycoproteins and Glycolipids
Answer: 4
Question: Carbon dioxide is called a “GREEN HOUSE” gas because
1. its concentration is always high in greenhouses
2. it is involved in photosynthesis
3. it absorbs infra-red radiation
4. it emits visible radiation (i.e.,light)
Answer: 3
Question: Bronchitis is a disease of which of the following organs ?
1. Blood
2. Bladder
3. Liver
4. Respiratory tract
Answer: 4
Question: Biopsy is done on
1. Tissues taken from a dead body
2. Tissues taken from a living body
3. Blood from veins
4. Blood from arteries
Answer: 2
Question: Bacteria having flagella all over the body are called
1. Lophotrichous
2. Monotrichous
3. Peritrichous
4. Morphotrichous
Answer: 3
Question: Bacteria can live in cold climate for
1. Few years
2. 1000 years
3. 2000 years
4. many years
Answer: 4
Question: Bacteria and fungi developing on dead decaying organisms are
1. Parasites
2. Commensals
3. Saprophytes
4. Symbionts
Answer: 3
Question: B.C.G. vaccine is used against
1. T.B.
2. Leprosy
3. Food poisoning
4. None of these
Answer: 1
Question: Auxin causes a plant shoot to bend toward light by causing cells
1. to grow less rapidly on the light side of the shoot
2. to grow more rapidly on the light side of the shoot
3. in the centre of the shoot to differentiate unevenly
4. to grow more rapidly on the dark side of the shoot
Answer: 4
Question: Autopsy is connected with
1. Post mortem
2. Study of living cells
3. Cancer
4. None of these
Answer: 1
Question: Atmospheric nitrogen in soil is fixed by
1. Cereals
2. Pulses
3. Sugarcane
4. Cotton
Answer: 2
Question: Artificial light can
1. Destroy chlorophyll
2. Synthesise chlorophyll
3. Bring about photosysnthesis
4. Not bring about photosysthesis
Answer: 3
Question: Araucaria or christmas tree, a common and beautiful vascular plant of gardens, is a variety of
1. Fern
2. Gymnosperm
3. Angiosperm
4. Dicotyledon
Answer: 2
Question: Aquatic plants with floating leaves
1. do not have stomata
2. have stomata on both surface
3. have stomata on lower surface
4. have stomata only on upper surface
Answer: 4