Edexcel IGCSE Biology 2.53 phloem structure and function
Practise phloem transport by naming carried substances, identifying phloem tissue and explaining how aphid feeding reduces crop yield.
- Syllabus
- First assessment 2019
- Course
- Biology 4BI1
Exam points
- Name sucrose and amino acids as substances transported in phloem from leaves.
- Use aphid feeding contexts to explain reduced respiration, growth or fruit yield.
- Identify phloem on leaf or stem diagrams as the tissue moving photosynthesis products.
2.53 Phloem transport question 1
The diagram shows a section through a leaf with different parts labelled P to U .
Question (a)
(a)
Which part of the leaf transports amino acids?
A
R
B
S
C
T
D
U
[ 1 ]
Question (b)
(b)
Which part transports the products of photosynthesis?
A
Q
B
R
C
S
D
T
[ 1 ]
All question bank results loaded