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SAI International School
                                           Subject - Biology, Class VIII

                                     Topic – Cell: Structure and Function
                          Subtopic – Nucleus, Prokaryotic and Eukaryotic cells
                                                         Module 10
                                               Home Assignment – II
                                                     Worksheet 2


            1.       The undefined nuclear region of prokaryotes are also known as-
                     a) Nucleus
                     b) Nucleic acid
                     c) Nucleolus
                     d) Nuclear membrane

            2.       Which of the following are present only in plant cells and not in animal cells?
                     a) Vacuole
                     b) Chloroplast
                     c) Cell membrane
                     d) Nucleus


            3.       Which of the following does not have a nuclear membrane?
                     a)Rhizobium
                     b)Yeast
                     c)Amoeba
                     d)Paramecium

            4.       Assertion (A):Mitochondria is called the powerhouse of the cell.
                     Reason (R): Mitochondria is present in cytoplasm of cells.
                        a)  If both Assertion and Reason are correct and Reason is the correct
                            explanation of Assertion.
                        b)  If both Assertion and Reason are correct, but Reason is not the correct
                            explanation of Assertion.
                        c)  If Assertion is correct but Reason is incorrect.
                        d)  If Assertion is incorrect but Reason is correct.

            5.       Assertion (A): Bacteria are prokaryotes.
                     Reason (R):Bacteria are unicellular.
                        a)  If both Assertion and Reason are correct and Reason is the correct
                            explanation of Assertion.
                        b)  If both Assertion and Reason are correct, but Reason is not the correct
                            explanation of Assertion.
                        c)  If Assertion is correct but Reason is incorrect.
                        d)  If Assertion is incorrect but Reason is correct.

            6.       Draw a labelled diagram of the nucleus. Write any two functions of it.

            7.       Differentiate between plant cells and animal cells(3 points).

            8.       a)Draw a labelled diagram of human cheek cell.
                     b) What is it’s outermost covering called? Write it’s function.

            9.       a)How are vacuoles of plant cells different from that of animal cells?
                     b) Write the function of vacuoles.
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