Question

Q.7 Describe an experiment to test for the presence of starch in a leaf after
photosynthesis.

Answer 1

Explanation:

aim:

to check presence of starch

apparatus:beaker ,leaf,testtube,methylated spirit,gauze,stand,iodine solution,bunsen burner,water

procedure:take asoft thin leaf

boil leaf in it for 5mins

take test tube with methlated spirit &place leaf init

now,place testube inbeaker&gently heat hwat the test tubein a beaker containing water until leaf gets palewhite

after sometime take the leaf into petridish and add iodine to it

observations:the parts which turn colour into blue back indicates the presence of starch

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result:the starch is present in the leaf even

chlorophyll is absent

step step explaination

Answer 2

Answer:

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Explanation:

jfQ-7 Describe an experiment to prove that - Plant leaf has starch.

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