IB MYP Biology Movement and Transport Exam Style Questions
IB myp 4-5 Biology – Practice Questions- All Topics
Topic :Metabolism-movement and transport
Topic :Metabolism– Weightage : 21 %
All Questions for Topic : Nutrition,Digestion,Biochemistry and enzymes,Movement and transport,Diffusion,Osmosis,Gas exchange,Circulation,Transpiration and Translocation,Homeostasis
Question
The roots of a plant cannot produce glucose but they need glucose for growth. Outline how the roots obtain glucose.
▶️Answer/Explanation
Ans:
Sugar moves or is transported
(down a tube) from where it is produced to where it is used
A correct use of the term translocation or phloem
Question:
Explain what limits the rate at which carbohydrates can be carried away from the leaves.
▶️Answer/Explanation
Ans: Amount of phloem tissue; pressure gradient in phloem between source and sink; availability of water for producing phloem sap/for dissolving sugars produced by photosynthesis.
Question:
With reference to photosynthesis and transpiration, state one advantage and one disadvantage of a large surface area leaf.
▶️Answer/Explanation
Ans: More light collected for photosynthesis by a large leaf; more surface area over which carbon dioxide can be absorbed for photosynthesis; more water loss by transpiration from a large leaf.