1. Difference between the prokaryotic and eukaryotic cells is in having A. cell wall B. nuclear membrane C. ribosome D. None of these Ans: B
2. The function of nucleolus is the synthesis of A. ui DNA B. m-RNA C. r-RNA D. t-RNA Ans: C
3. Which one of the following has its own DNA? A. Mitochondria B. Dictyosome C. Lysosome D. Peroxisome Ans: A
4. Regarding the sequence of cell cycle, which one is correct A. G₁, G₂, S and M B. S, G₁, G₂ and M C. G₁, S, G₂ and M D. G₂, S, G₁ and M Ans: C
5. The exchange of genetic material between chromatids of paired homologous chromosomes during first meiotic division is called A. transformation B. chiasmata C. crossing over D. synapsis Ans: C
6. Chloroplast containing parenchyma is called A. chlorenchyma B. collenchyma C. aerenchyma D. amylanchyma Ans: A
7. Chromosomes contain hereditary units called A. genes B. ribosomes C. DNA D. RNA Ans: A
8. Which cell organelle is known as the control centre of the cell ? A. Nucleus B. Chloroplast C. Mitochondria D. Endoplasmic reticulum Ans: A
9. Who observed and coined the word 'cell' for the first time? A. Robert Cook B. Robert Brown C. Robert Hooke D. Leeuwenhoek Ans: C
10. What part of the cell serves as the intracellular highway? A. Endoplasmic reticulum B. Golgi apparatus C. Cell membrane D. Mitochondria Ans: A
11. Which of the following would you not find in a bacterial cell ? A. DNA B. Cell membrane C. Golgi apparatus D. Ribosomes Ans: C
12. Which of the following could be found in both the nucleus and the cytoplasm? A. Nucleolus B. Ribosomes C. RNA D. Both RNA & ribosomes Ans: D
13. Which one of the following structures is an organelle within an organelle? A. Ribosome B. Peroxisome C. ER D. Mesosome Ans: A
14. The process of mitosis is divided into 4 phases. Identify the correct order in which these phases appear in mitosis A. Anaphase, metaphase, telophase and prophase B. Telophase, anaphase, metaphase and prophase C. Metaphase, prophase, anaphase and telophase D. Prophase, metaphase, anaphase and telophase Ans: D
15. Which of the following cells is found in the cartilagineous tissue of the body? A. Mast cells B. Basophils C. Osteocytes D. Chondrocytes Ans: D
16. Survival of plants in terrestrial environment has been made possible by the presence of A. intercalary meristem B. conducting tissue C. apical meristem D. parenchymatous tissue Ans: B
17. The tissues that helps in the movement of our body is A. muscular tissue B. skeletal tissue C. nervous tissue D. All of these Ans: D
18. The connective tissue that connects muscle to bone is called A. ligament B. tendon C. cartilage D. areolar Ans: B
19. Cartilage and bone are types of A. muscular tissue B. connective tissue C. skeletal tissue D. epithelial tissue Ans: B
20. Intercalated disc is present in A. striated muscle B. smooth muscle C. cardiac muscle D. Both (b) and (c) Ans: C
21. Cells which take part in secondary growth are named as A. phloem B. xylem C. cambium D. medullary ray Ans: C
22. Which of the following is responsible for mechanical support and enzyme transport ? A. Dictyosome B. Cell membrane C. ER D. Mitochondria Ans: C
23. Cell wall in higher plants is made up of A. Cellulose + lignin B. Cellulose + pectin C. Cellulose + suberin D. Cellulose + lipid Ans: B
24. ATP molecule is a A. Nucleosome B. Nucleoside C. Nucleotide D. Deoxyribose sugar Ans: C
25. Which one is not a carbohydrate? A. Chitin B. Methionine C. Glycogen D. Starch Ans: B
26. Branches of botany dealing with the internal organization of plants known as A. Physiology B. Ecology C. Anatomy D. Cytology Ans: C
27. Xylem functions as a conducting tissue for water and minerals from ____to the ____ and ______. A. roots, stems, leaves B. stems, roots, leaves C. leaves, stems, roots D. leaves, stems, leaves Ans: A
28. Most diverse macro molecules, found in the cell both physically and chemically are A. proteins B. carbohydrates C. nucleic acids D. lipids. Ans: A
29. Lipids are insoluble in water because lipid molecules are A. hydrophilic B. hydrophobic C. neutral D. zwitter ions Ans: B
30. Which one is the most abundant protein in the animal world? A. Trypsin B. Haemoglobin C. Collagen D. Insulin Ans: C