CIE iGCSE Co-Ordinated Science B6.2 Leaf structure Exam Style Questions Paper 3
Question
(a) Fig. 7.1 is a drawing of a cross-section of a leaf.
State the names of the parts labelled A, B and C in Fig. 7.1.
A …………………………………………………………………………
B …………………………………………………………………………
C …………………………………………………………………………
(b) Fig. 7.2 is a cell from the palisade mesophyll layer of the leaf.
On Fig. 7.2:
• Identify the part where photosynthesis takes place with a label line and the correct name.
• Identify the part that contains the genetic material with a label line and the letter X.
(c) Describe the process of photosynthesis.
(d) Plants need nitrate ions to make an important substance.
Circle the name of this substance.
amino acid fatty acid starch
glycogen glycerol
(e) State the name of the cell that absorbs mineral ions in a plant.
(f) State the name of the vessels that transport mineral ions in the stem.
▶️Answer/Explanation
Ans : 7(a) A – cuticle ;
B – (lower) epidermis ;
C – stoma / stomata ;
7(b) one chloroplast with label line ;
with correct name ;
nucleus labelled with an X ;
7(c) (process used in plants / producers) to manufacture glucose ;
from raw materials / carbon dioxide and water ;
using light energy ;
7(d) amino acids circled ;
7(e) root hair (cell) ;
7(f) xylem ;