The site for production of a ATP in a cell is
- A. ribosome
- B. cytoplasm
- C. Golgi body
- D. mitochondrion
In which of the following organisms is parental care manifested?
- A. Tilapia
- B. Toad
- C. Cockroach
- D. Snail
Protection of the body cells of mammals against ultra-violet rays of the sun is brought about by
- A. keratin
- B. melanin
- C. sebum
- D. scales
A neurone that transmits impulses directly from sensory cells is called
- A. an afferent neurone
- B. an efferent neurone
- C. a relay neurone
- D. a peripheral neurone
The smallest branches on the cell body of a neurone are called
- A. dendrites
- B. dendrons
- C. ganglia
- D. Schwan cells
Which of the following statements about nerve cells is not correct?
- A. The axons relay impulses from the cell Body
- B. The cell body is always found at the end of the neurone
- C. Each neurone has a cell body
- D. The dendrites of one neurone transmit impulses to the cell body
Insulin is produced by the
- A. adrenal gland
- B. thyroid gland
- C. pituitary gland
- D. pancreas
The endocrine gland which co-ordinates the action of other glands and is also associated with the nervous system is the
- A. adrenal gland
- B. thyroid gland
- C. pituitary gland
- D. thymus gland
The persistent Presence of glucose in a person’s urine indicates malfunctioning of the
- A. heart
- B. bladder
- C. pancreas
- D. stomach
The malplghian body of the mammalian kidney is made up of
- A. cortex and medulla
- B. Bowman's capsule and loop of Henle
- C. glomerulus and Bowman's capsule
- D. pelvis and pyramid.
Which of the following blood vessels have valves?
- A. Capillary
- B. Artery
- C. Vein
- D. Arteriole
Which of these statements about white blood cells is true? They
- A. aid clotting of blood
- B. carry oxygen round the body
- C. are the most numerous blood cells
- D. are large nucleated cells
The fine adjustment of the light microscope is used to
- A. admit more light into the microscope
- B. focus the object under low power
- C. focus the object under high power
- D. raise the stage upwards
Which of the following processes is a form of sexual reproduction?
- A. Budding by yeast cells
- B. Conjugation in Spirogyra
- C. Binary fission in Amoeba
- D. Rhizome production by ginger
Growth includes the following processes except
- A. differentiation
- B. enlargement
- C. mitosis
- D. meiosis
Yeast is added to the dough during the preparation of bread because it produces
- A. ethanol
- B. heat
- C. carbon dioxide
- D. carbohydrate
The dominant stage in the life cycle of a fern is the
- A. antheridium
- B. gametophyte
- C. prothallus
- D. sporophyte
Which of the following processes takes place when a plant cell is put in a hypotonic solution?
- A. Water moves into the cell and the cell bursts
- B. Water leaves the cell and the cell becomes flabby
- C. Water moves into the cell and the cell becomes turgid
- D. The cell becomes plasmolysed
The organelle involved in the transport of substances within a cell is?
- A. Golgi body
- B. endoplasmic reticulum
- C. ribosome
- D. mitochondrion
Respiration is an essential life process providing the living cells with
- A. oxygen
- B. sugars
- C. energy
- D. carbon dioxide
The hereditary material in a living organism is located inside the
- A. protein wall
- B. cytoplasm
- C. nucleus
- D. lysosome