POST UTME Oau Biology Past Questions And Answers
1
The xylem elements perform the function of transport but they also help to support plants because they
- A) are internally located
- B) are lubular
- C) have rigid thick wall
- D) Constantly absorb water
2
The part of the tooth that contains blood vessels and nerve fibres is
- A) Root
- B) Enamel
- C) Dentine
- D) Pulp cavity
3
The blood vessel which carries digested food from the small intestine to the liver is the
- A) renal vein
- B) renal artery
- C) hepatic artery
- D) hepatic portal vein
4
Biosphere is best described as
- A) all parts of the earth where life exists.
- B) the non-living parts of an ecosystem.
- C) all component of an ecosystem
- D) all the members of a single species in a habitat
5
Which of the following statements is NOT correct? Hormones
- A) are circulated by blood and lymph
- B) have their effect on target organs
- C) complement nervous co-ordination
- D) are not produced in specific glands
6
The cilia in paramecium are used for
- A) respiration
- B) locomotion
- C) protection
- D) excretion
7
Meiosis II is similar to mitosis in that:
- A) Homologous chromosome synapse
- B) Sister chromatids separate during anaphase
- C) The chromosome number is reduced
- D) The daughter cells are diploid
8
One significant difference between roots and stem is that
- A) Branch root originate in the pericycle while branch stems do not
- B) Stems are always below the ground while roots are always under the ground
- C) Stems are positively geotropic while roots are negatively geotropic
- D) Stems are sometimes used for storage while roots are never so used
9
The particles found in the blood which play an important role in blood clotting are called
- A) platelets
- B) red blood cells
- C) monocytes
- D) granulocytes
10
Partially digested food ready to leave the stomach is called
- A) chyme
- B) curb
- C) glycogen
- D) paste