Question: Normal adult human male has
1. 10 gm of haemoglobin/100 gm of blood
2. 14 gm of haemoglobin/100 gm of blood
3. 18 gm of haemoglobin/100 gm of blood
4. 24 gm of haemoglobin/100 gm of blood
Answer: 2
Question: Norepinephrine increases
1. respiration
2. urine production
3. saliva production
4. blood pressure
Answer: 4
Question: Nitrogen is fixed in ecosystems in ways stated below . Which one of the statements below is false?
1. by cyanobacteria
2. by electrial discharges in the atmosphere
3. by industrially synthesized fertilizer
4. by denitrification
Answer: 4
Question: Neurospora is used as genetic material because
1. it has short life cycle of 10 days
2. the product of single meiosis can be easily analysed
3. meiotic products are linearly arranged in the form of ordered tetrads
4. is a diploid fungus
Answer: 1
Question: Myopia is connected with the
1. ears
2. eyes
3. lungs
4. none of these
Answer: 2
Question: Mumps is a disease caused by
1. fungus
2. bacterium
3. virus
4. none of these
Answer: 3
Question: Movements due to light are shown by
1. flowering plants
2. lower plants
3. all land plants
4. all the plants
Answer: 1
Question: Minute, circular discs floating in the blood, which carry oxygen to the tissues, and carbon dioxide away from them, are called
1. White blood corpuscles(WBC)
2. Red blood corpuscles (RBC)
3. Monophylis
4. Erythrocytes
Answer: 2
Question: Mango contains vitamins
1. A and B
2. B and C
3. A and C
4. B and E
Answer: 3
Question: Man in the life cycle of plasmodium is
1. Primary host
2. Secondary host
3. Intermediate host
4. None of these
Answer: 2
Question: Man has become the dominant species in the biosphere because of his
1. tol-making capacity
2. ingenious brainpower
3. articulated speech and language
4. all the above mentioned qualities
Answer: 4
Question: Man belongs to the phylum
1. mollusca
2. chordata
3. porifera
4. amphibian
Answer: 2
Question: Mammals are
1. warm-blooded
2. cold-blooded
3. both (a) and (b)
4. none of these
Answer: 1
Question: Male frogs show vocal sacs and
1. tail
2. neck
3. nuptial pads
4. all of these
Answer: 3
Question: Maize grain is
1. a seed
2. an embryo
3. an ovule
4. a fruit
Answer: 1
Question: Main substance involved in transfer of electrons in photosynthesis is
1. Phytochrome
2. Cytochrome
3. FAD
4. both (a) and (B)
Answer: 2
Question: Lungs are situated in the
1. abdominal cavity
2. pericardial cavity
3. buccal cavity
4. thoracic cavity
Answer: 4
Question: Lungs are enclosed in
1. pericardium
2. peritonium
3. pleural membrane
4. none of these
Answer: 3