Question

What name will you give to a cell in which the nuclear membrane is not well marked? 2. Compare the compositions of hypotonic, Isotonic, and hypertonic solutions with that of the cell sap 3. Name the structure that is absent in animal cell since they have bones. 4. State whether true or false :- i. Movement of liquid particles through a semi permeable membrane is called diffusion ii. DNA molecules establish the true parental lineage of the child iii. Central vacuole gives rigidity to the plant cell from inside iv. Vacuoles are temporary in animal 5. Select the appropriate answer :- i. If a cell swells up when kept in a solution, the solution is a. Hypertonic b. Hypotonic c. isotonic ii. cytoplasm contains the a. cell wall b. cell organelles c. cell membrane iii. cell organelles can be compared to a. cell wall b. plasma membrane c. nucleus d. various demarked areas in a house with specific functions iv. A cell bursts when kept in hypotonic solution bursts, then it is a. A. Plant cell b. An animal cell c. A bacterial cell d. A fungal cell v. Throwing out of water by a cell is a. Phagocytosis b. Endocytosis c. Potocytosis vi. Root hair absorbs water by a. Osmosis b. Diffusion c. Both of above d. Neither of above vii. Plasmolysis occurs due to a. Breaking down of plasma b. Shrinkage of cytoplasm in hypertonic solution c. Shrinkage of nucleoplasm d. None of the above 6. Which structure of the cell helps to establish the correct identity of a child’s father? 7. Where are these structures found? 1 8. State the number of chromosomes the reproductive cell of a human contains. 9. Why do they contain half the no. of chromosomes as in an adult 1 human being? 10. What are the terms given to cells with 46 chromosomes and those with 23 chromosomes? 2

Answer 1

1. prokaryotic 2. hypertonic is if the medium has a low concentration of water than the cell the cell will loose water and it will shrink .hypotonic is just opposite of it.in isotonic the water concentration inside as well as outside will be the same.3.i dont know 4.first false, rest all are true 5. first answer is b ,second answer is b, third also b