Jamb Biology Questions - Floral parts and their functions
Question 1:
The part numbered 12 is
- A Pectoral fin
- B Scale
- C Opercular plate
- D Gill plate
- E Pectoral girdle
Question 2:
If you cross breed a tall variety (Tt) of maize with a short variety (tt), the ratio of tall to short plants in the offspring will be
- A 2:1
- B 1:2
- C 1:1
- D 1:3
- E 3:1
Question 3:
The figure above is a section of a drupe. The part numbered 2 is
- A Epicarp
- B Endocarp
- C Mesocarp
- D Seed
- E Pericarp
Question 4:
The filament of spirogyra were put into equal volumes of sugar solutions X and Y. After 5 minutes, filaments from solution X had their cells contents rounded up while those from Y were unaffected. The experiment shows that
- A Solution X was stronger than Y
- B Solution Y was stronger than X
- C Spirogyra used up the sugar in solution X
- D Solution X is good for stimulating sexual reproduction in Spirogyra
- E Solution Y was less contaminated than X
Question 5:
Why is the part labelled 5 thicker than 6?
- A 5 is the left ventricle and 6 the right ventricle
- B 6 is the left ventricle and 5 the right ventricle
- C 5 receives blood from the left auricle and 6 from the right
- D 5 pumps blood round the body and 6 pumps blood into the lungs
- E 5 deals with oxygenated blood and 6 deals with deoxygenated blood