5th Year Biology Test Cell Continuity
Question 1: 26 Marks
(a) What is mitosis? Where does mitosis occur? (6)
(b) The diagram shows one of the stages of mitosis.
(i) Name this stage. (3)
(ii) Explain what is happening (5)
(iii) Name a region of a growing plant where mitosis occurs (3)
(iv)Explain how the resulting cells of mitosis differ from those of meiosis. (6)
(v)State where meiosis occurs in the human body.(male or female) (3)
Question 2: 18 Marks
(a) State a function of mitosis in a single-celled organism. (3)
(b) State a function of mitosis in a multi cellular organism. (3)
(c) State one way in which mitosis differs from meiosis. (3)
(d) When the normal control of mitosis in a cell is lost, cancer may result.
Suggest two possible causes of cancer. (6)
(e) The diagram opposite shows one of the stages of
mitosis. Name this stage. (3)
Question 3 : Total 28 marks
(a) Name the 5 stages of mitosis (10)
(b) What occurs at Interphase ? (3)
(c ) Can Interphase truly be called a stage in mitosis? Why (3)
(d) Draw a nucleus where 2n = 6. Is this cell haploid or diploid ? (6)
(e) Draw nucleus where n = 4. Is this cell haploid or diploid ? (6)