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Name: …………………………………
Grade 7th
Worksheet : 3
Biology Subject
Work Rate:
Chapter 7-8/ Pages: 40→44
Exercise 1: Answer by true or false, then correct the false statements
a) Only chlorophyllic plants can perform photosynthesis:
………………………………………………………………………………………………………………………..
b) Photosynthesis is a process in which plants take oxygen and sugar and produce
carbon dioxide:
…………………………………………………………………………………………………………………………
c) Water and minerals make the elaborated sap:
…………………………………………………………………………………………………………………………
d) Carbon dioxide, water and sunlight are not necessary for photosynthesis:
…………………………………………………………………………………………………………………………
e) The crude sap and the elaborated sap flow in the same conducting vessels:
…………………………………………………………………………………………………………………………
f) Photosynthesis is an essential process for life on Earth:
…………………………………………………………………………………………………………………………
g) Photosynthesis occurs inside the leaves:
………………………………………………………………………………………………………………………
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Exercise 2:
Exercise 3: Fill in the blanks:
1. The ………………… absorb ………………… and …………………. from the soil.
This is ………………………….
2. The ………………… and …………………. are two conducting vessels.
3. ……………………………… form the crude sap, which flows in the ……………………………
4. ……………………………… form the elaborated sap, which flows in the ……………………
5. ……………………………… plants need water, ……………………… and ……………………… to
produce organic matter (its food). This process is called ………………………………….
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Exercise 4: Cross out the words related to Photosynthesis:
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