CAPSam Ex a c t i cePrBe 10 rad Gk o o
Grade 10
LIFE SCIENCES PRACTICE TEST ONE Marks: 75 QUESTION 1 Various possible answers are provided for each question. W rite only the letter of the correct answer next to the corresponding number. 1.1 Each new cell produced by mitosis will have … A half the number of chromosomes. B a full set of chromosomes. C twice the number of chromosomes. D two new nuclei. 1.2 Which of the following is NOT a function of mitosis? A growth B repair C asexual reproduction in unicellular organisms D the formation of sex cells 1.3 If a cell divides by mitosis, how many cells will there be after three divisions? A 3 cells B 4 cells C 8 cells D 16 cells 1.4 Study the following diagram. (2) (2) (2) The chromosome number of the cell is … A B C D 1.5 2 4 6 8 (2) In a cell nucleus, the thread-like structures are called … A B C D centrioles. centrosomes. centromeres. chromosomes. (2)
1.6 The organelles that synthesise proteins are called … A B C D 1.7 ribosomes. mitochondria. chloroplasts. nucleoli. (2) The part of the plant cell responsible for providing support is … A the cell wall only. B the vacuole only. C the cell wall and nucleus. D the cell wall and vacuole. Which of the following plant tissues does NOT play an important role in supporting a plant? A B C D collenchyma schlerenchyma parenchyma xylem (2) 1.8 (2) 1.9 The correct term for the loss of water from a leaf surface is … A B C D …