Media and processes of mechanism for transportation - Jamb Biology Past Questions and Answers

Question 1:

• JAMB 2019

A plant which grows on another plant without apparent harm to the host plant is called

A. An epiphyte
B. A saprophyte
C. A parasite
D. A predator
E. A hermaphrodite

Question 2:

• JAMB 2019

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 lost 1g of water per hour
B. The potometer water receded at the rate of 1g per hour
C. The shoot absorbed 1g of water per hour
D. The shoot was respiring and lost weight at rate of 1g per hour
E. 1g of water per hour evaporates from the potometer

Question 3:

• JAMB 1978

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 4:

• JAMB 1978

a potometer was used to compare the rate of loss of the same volume of water from a plant under different environmental conditions as under a fan, at the sea shore, under the sun, in the airy laboratory and in cupboard. What time was likely to have been obtained in a cupboard?

A. 15 secs
B. 30secs
C. 25secs
D. 20secs
E. 28secs

Question 5:

• JAMB 2019

Which of the following statement about the similarities in plant and animal transport is correct?

A. Materials and hormones are transported in fluid form
B. The transport medium is made up of only tissues
C. Their materials are transported in the same vessels
D. Diffusion is not required