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Class 7 Life Processes in Plants worksheet
CBSE Science. Photosynthesis and the starch test, stomata, xylem and phloem, respiration in plants. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
The process by which green plants make food is:
- digestion
- transpiration
- respiration
- photosynthesis
Answer
(d) photosynthesis
- 2.
In which case will STARCH form in the leaf?
- half a leaf inside a bottle with caustic soda, in sunlight
- the part of a leaf covered with black paper in sunlight
- the green part of a variegated leaf in sunlight
- the white part of a variegated leaf in sunlight
Answer
(c) the green part of a variegated leaf in sunlight
- 3.
In which case will NO starch form?
- the green part of a variegated leaf in sunlight
- a green leaf of a plant kept in sunlight
- a leaf of a plant kept in the dark for two days
- a red-coloured leaf of a plant in sunlight
Answer
(c) a leaf of a plant kept in the dark for two days
Section B · short answer
- 4.
Write the word equation for photosynthesis.
Answer
Carbon dioxide + water → glucose + oxygen (in sunlight, with chlorophyll).
- 5.
Will starch form? Write "yes" or "no": (a) a red-coloured leaf of a plant in sunlight (b) the white part of a variegated leaf in sunlight
Answer
(a) yes (b) no
Section C · long answer
- 6.
Describe an experiment to show that sunlight is needed for photosynthesis.
Answer
Keep a potted plant in the dark for 2–3 days to remove starch. Cover part of a leaf with black paper and put the plant in sunlight for a few hours. Test the leaf for starch: only the uncovered part turns blue-black, showing sunlight is needed.
Fresh sheets for your child
In the app, every Life Processes in Plants sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
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