The diagram above is an illustration of sense organ in humans. Study it and answer questions 15 and 16.
The part that protects the organ is labelled
- A. I
- B. II
- C. III
- D. IV
The structures that contain grey matter and white matter are found in the
- A. reproductive system.
- B. nervous system.
- C. respiratory system.
- D. digestive system.
Filtrates in the Bowman’s capsule contain vitamins because
- A. they have low molecular weight.
- B. most of them are fat soluble.
- C. they cannot be reabsorbed into the blood.
- D. little amount is required by the blood.
Which of the following blood vessels carries oxygenated blood into the heart?
- A. Pulmonary artery
- B. Anterior vena cava
- C. Pulmonary vein
- D. Posterior vena cava
The lumbar vertebra differs from the thoracic vertebra because it possesses a
- A. longer neural spine.
- B. wider neural canal.
- C. thicker centrum.
- D. shorter transverse process.
If a germinating seed is attached horizontally to a revolving klinostat, what would be the effect on the seedling after three days? The
- A. plumule will curve vertically upward while the radicle will not show any curvature
- B. radicle will curve towards the ground while the plumule will not show any curvature.
- C. plumule and radicle will not show any curvature.
- D. plumule will curve vertically upwards while the radicle will curve towards the ground
The function of the root hair in plants is to
- A. absorb soil water by the process of osmosis.
- B. excrete water and mineral salts by simple diffusion.
- C. purify the soil for the plant.
- D. translocate manufactured food.
The bursting of a red blood cell placed in a hypotonic solution is called
- A. crenation
- B. haemolysis
- C. plasmolysis
- D. cytolysis
The structure in the cell that controls the movement of substances in and out of the cell is the
- A. cytoplasmic membrane
- B. nuclear membrane
- C. protoplasm
- D. endoplasm
Which of the following organisms consists of unicellular cells joined to form a filament?
- A. Amoeba
- B. Spirogyra
- C. Euglena
- D. Chlamydomonas
The illustrated organism is capable of reproducing by
- A. sexual means only
- B. asexual means only
- C. vegetative propagation only
- D. sexual and asexual means
The diagram above is an illustration of a reproductive process in an organism. Study it and answer ques tions 4 and 5.
The type of reproduction illustrated is
- A. budding
- B. binary fission
- C. grafting
- D. vegetative propagation
A plant with short, vertical underground stem is a
- A. bulb
- B. corm
- C. rhizome
- D. tuber
Species are groups of organisms that
- A. are of different origins and are always found together
- B. are of common origin but cannot interbreed freely
- C. have similar features and can interbreed freely
- D. resemble each other and occupy different niches
Which of the following organisms contains Chlorophyll in its cells?
- A. Caterpillar
- B. Paramecium
- C. Euglena
- D. Grasshopper
Use the diagram above to answer the question that follows.
Examples of non-vascular plants are labelled
- A. I and II
- B. I and III
- C. II and III
- D. II and IV
The part of the brain that receives sensory impulses of smell is the
- A. olfactory lobe
- B. medulla oblongata
- C. cerebrum
- D. Cerebellum
Hemophilia in humans is controlled by the
- A. blood group
- B. dominant gene
- C. rhesus factor
- D. recessive gene
Use the diagram above to answer the question that follows:
Recombination of genes at fertilization is represented by the part labelled
- A. I
- B. II
- C. III
- D. IV
DNA carries the genetic information and are generally found in the
- A. ribosomes
- B. chromosomes
- C. blood
- D. enzymes