Question: Plants receive their nutrients mainly from
1. chlorophyll
2. atmosphere
3. light
4. soil
Answer: 4
Question: Plants have_____ while animals lack it
1. Starch
2. Cellulose
3. Protein
4. Fat
Answer: 2
Question: Plants are killed in winter by frost because
1. no photosynthesis occur at low temperature
2. of desiccation
3. water in the plant freezes
4. water in the plants evaporates
Answer: 2
Question: Plants absorb most of the water needed by them through their
1. Embryonic zone
2. Growing point
3. Root hairs
4. Zone of elongation
Answer: 3
Question: Plants absorb dissolved nitrates from soil and convert them into
1. Free nitrogen
2. Urea
3. Ammonia
4. Proteins
Answer: 1
Question: Pigmentation of skin is due to
1. Lymphocytes
2. Monocytes
3. Leucocytes
4. Melanocytes
Answer: 4
Question: Photosynthesis takes place faster in
1. yellow light
2. white light
3. red light
4. darkness
Answer: 2
Question: Photosynthesis is a process
1. reductive and exergonic
2. reductive and catabolic
3. reductive, endergonic and catabolic
4. reductive, endergonic and anabolic
Answer: 4
Question: Photo-Oxidation is
1. Photorespiration
2. Photolysis
3. Light and oxygen induced break down
4. All of the above
Answer: 4
Question: Phloem is a tissue found in
1. Reproductive organs of animals
2. Plants
3. Insects
4. Mammals
Answer: 2
Question: Phenomenon which converts light energy into chemical energy is
1. Respiration
2. Photosynthesis
3. Transpiration
4. None of these
Answer: 2
Question: People who live at high altitudes have rosy cheeks because
1. haemoglobin has an increased binding affinity for oxygen and becomes deep red in colour
2. red cell concentration is considerably above average in response to lowered oxygen pressure
3. the rate of capillary circulation increases in the skin to make it look pinkish
4. all of these
Answer: 2
Question: Pedology is the study of
1. Soil
2. Locomotion of animals
3. Rocks
4. Crop disease
Answer: 1
Question: Oxygen in our blood is transported by a protein named
1. Haemoglobin
2. Keratin
3. Collagen
4. Myoglobin
Answer: 1
Question: Outer covering of virus made up of protein is
1. capsid
2. coat
3. virion
4. viriod
Answer: 1
Question: Our Skin becomes dark, when exposed to excess sunlight. This is because of our skin pigment called
1. Flavoxanthin
2. Melanin
3. Carotene
4. Xanthopny II
Answer: 2