am Ex a c t i ce
e 10 rad G
k o o
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.
The chromosome number of the cell is … A B C D 1.5 2 4 6 8
In a cell nucleus, the thread-like structures are called ... A B C D centrioles. centrosomes. centromeres. chromosomes.
1.6 The organelles that synthesise proteins are called … A B C D 1.7 ribosomes. mitochondria. chloroplasts. nucleoli.
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
The correct term for the loss of water from a leaf surface is ... A B C D ...