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ICSEClass XBiologyPhotosynthesis05 Mark2024 Moderate

QQuestion

Study the diagram given below and fill in the blanks with suitable words:

Study the diagram given below and fill in the blanks with suitable words

In order to prove that carbon dioxide is necessary for (a) …………… , a potted plant is placed in dark for 48 hours to (b) …………… the leaves. A part of a leaf is inserted into a conical flask containing potassium hydroxide solution. This is to absorb (c) …………… from the flask. The plant is then placed in sunlight for a few hours. The experimental leaf is tested for starch. The part of the leaf that was inside the conical flask turns (d) …………… , whereas the part of the leaf outside turns (e) …………… in colour.

Exam-ready answer • 05 Mark

Answer

(a) Photosynthesis

(b) Destarch

(c) Carbon dioxide

(d) Brown

(e) Blue-black

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