Q1. Movements due to light are shown by—
(a) Flowering plants
(b) Lower plants
(c) All lands plants
(d) All the plants
Ans.(a)
Q2. The main difference between the living and nonliving is—
(a) in the growth
(b) in the size
(c) in the movement
(d) in the presence of protoplasm
Ans.(d)
Q3. Which is regarded as a link between the living and the non-living?
(a) Amoeba
(b) Virus
(c) Bacteria
(d) RNA
Ans.(b)
Q4. Which of the following branches of science is concerned with the study of the relationship of plants to their environment?
(a) Cytology
(b) Ecology
(c) Morphology
(d) Physiology
Ans.(b)
Q5. Bacteria do not need sunlight to grow because—
(a) They lack chlorophyll and so they are incapable of making their own food
(b) They hate sunlight
(c) They use other kinds of light for their food synthesis
(d) They prepare their food without the help of sunlight
Ans.(d)
Q6. A cockroach has—
(a) Three pairs of walking legs
(b) Two pairs of walking legs
(c) Four pairs of walking legs
(d) One pair of walking legs
Ans.(a)
Q7. Aves are—
(a) Cold-blooded
(b) Warm-blooded
(c) Both
(d) None of these
Ans.(b)
Q8. Genetics is the branch of science that deals with the study of—
(a) Relations between plants and the environment
(b) Inheritance and variation
(c) Cell structure
(d) Thermal structure
Ans.(b)
Q9. A plant cell is distinguished from an animal cell by the presence of—
(a) Nucleus
(b) Chloroplasts
(c) Cell membrane
(d) Mitochondria
Ans.(b)
Q10. Just as the division of cytoplasm is called cytokinesis, the division of nucleus is called—
(a) Heterosis
(b) Mitosis
(c) Meiosis
(d) Karyokinesis
Ans.(d)
Q11. The substance that makes up about 80% of cytoplasm—
(a) Minerals
(b) Water
(c) Protein
(d) Fats
Ans.(b)
Q12. The type of relationship in which one organism is benefited while there is no effect on other is—
(a) Symbiosis
(b) Commensalisms
(c) Mutualism
(d) Parasitism
Ans.(b)
Q13. The molecules responsible for storing the genetic code are—
(a) DNA
(b) RNA
(c) Protein
(d) Chromosome
Ans.(a)
Q14. The two strands of the DNA double helix and held together by—
(a) Hydrogen bonds
(b) C=C double bonds
(c) Hydrophobic bonds
(d) Peptide bonds
Ans.(a)
Q15. A plant leaf appears to be green because it—
(a) Absorbs green light
(b) Reflects all but yellow and blue light
(c) Reflects green light
(d) Absorbs red and yellow light
Ans.(c)
(a) Flowering plants
(b) Lower plants
(c) All lands plants
(d) All the plants
Ans.(a)
Q2. The main difference between the living and nonliving is—
(a) in the growth
(b) in the size
(c) in the movement
(d) in the presence of protoplasm
Ans.(d)
Q3. Which is regarded as a link between the living and the non-living?
(a) Amoeba
(b) Virus
(c) Bacteria
(d) RNA
Ans.(b)
Q4. Which of the following branches of science is concerned with the study of the relationship of plants to their environment?
(a) Cytology
(b) Ecology
(c) Morphology
(d) Physiology
Ans.(b)
Q5. Bacteria do not need sunlight to grow because—
(a) They lack chlorophyll and so they are incapable of making their own food
(b) They hate sunlight
(c) They use other kinds of light for their food synthesis
(d) They prepare their food without the help of sunlight
Ans.(d)
Q6. A cockroach has—
(a) Three pairs of walking legs
(b) Two pairs of walking legs
(c) Four pairs of walking legs
(d) One pair of walking legs
Ans.(a)
Q7. Aves are—
(a) Cold-blooded
(b) Warm-blooded
(c) Both
(d) None of these
Ans.(b)
Q8. Genetics is the branch of science that deals with the study of—
(a) Relations between plants and the environment
(b) Inheritance and variation
(c) Cell structure
(d) Thermal structure
Ans.(b)
Q9. A plant cell is distinguished from an animal cell by the presence of—
(a) Nucleus
(b) Chloroplasts
(c) Cell membrane
(d) Mitochondria
Ans.(b)
Q10. Just as the division of cytoplasm is called cytokinesis, the division of nucleus is called—
(a) Heterosis
(b) Mitosis
(c) Meiosis
(d) Karyokinesis
Ans.(d)
Q11. The substance that makes up about 80% of cytoplasm—
(a) Minerals
(b) Water
(c) Protein
(d) Fats
Ans.(b)
Q12. The type of relationship in which one organism is benefited while there is no effect on other is—
(a) Symbiosis
(b) Commensalisms
(c) Mutualism
(d) Parasitism
Ans.(b)
Q13. The molecules responsible for storing the genetic code are—
(a) DNA
(b) RNA
(c) Protein
(d) Chromosome
Ans.(a)
Q14. The two strands of the DNA double helix and held together by—
(a) Hydrogen bonds
(b) C=C double bonds
(c) Hydrophobic bonds
(d) Peptide bonds
Ans.(a)
Q15. A plant leaf appears to be green because it—
(a) Absorbs green light
(b) Reflects all but yellow and blue light
(c) Reflects green light
(d) Absorbs red and yellow light
Ans.(c)
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