Jamb Biology Questions - Characteristics of Living organisms
Question 6:
A potometer with a leafy shoot weighed 18.9g initially and weighed 17.9g after one hour. From this it follow that
- A The shoot absorbed 1g of water per hour
- B 1g of water per hour evaporates from the potometer
- C The shoot lost 1g of water per hour
- D The potometer water receded at the rate of 1g per hour
- E The shoot was respiring and lost weight at rate of 1g per hour
Question 7:
The number shown as 8 refers to
- A Upper epidermise
- B Cuticle
- C Stoma
- D Guard cell
- E Lower epidermis
Question 8:
The movement of molecules from a region of higher concentration to one of lower concentration is
- A Diffusion
- B Transpiration
- C Osmosis
- D Translocation
- E Plasmolysis
Question 9:
Which one of the following option is not true for mucor of Rhizophus? it
- A Grows on moist dead organic matter
- B Is a plant
- C Has cellulose cell-wall
- D Reproduce asexually by producing a spore
- E Has no chlorophyll
Question 10:
Milk can be pasteurized by
- A The addition of common salt
- B Boiling for one hour
- C Heating to 75<sup style='font-size: smaller;'>o</sup>c for 20 minutes
- D The addition of vinegar
- E Heating to 100<sup style='font-size: smaller;'>o</sup>c for 12 hours