Page 86 - CT&AI_CLasa_7_Part_1

Life Processes

10 in Plants

computational thinking quest

Tick ( ) the correct option.
1. A student skips boiling the leaf in water 3. While writing the equation of respiration,
first and directly places it in alcohol while Ankit made a mistake.
demonstrating the experiment that green Oxygen + Energy → Glucose Carbon Water
+
+
leaves prepare and store food. dioxide
What problem might occur? What can be done to correct this equation?
(Abstract Thinking) (Decomposition)

(a) The leaf will turn green again. (a) Swap ‘Carbon dioxide’ and ‘Energy’

(b) The leaf may not become soft and (b) Remove ‘Energy’ and ‘Water’
can break easily.
(c) Swap ‘Energy’ and ‘Glucose’
(c) The iodine will not react with starch.
(d) Remove ‘Oxygen’ from the
(d) The alcohol will not remove equation
chlorophyll.
2. Rekha observes a plant with red leaves and 4. A student recorded the number of leaves in
Pots P, Q, and R over 15 days and plotted a
claims that it cannot perform photosynthesis graph.
because it is not green. Which statement best
corrects the student’s misunderstanding?

(Abstract Thinking)

(a) Red leaves do not contain
chlorophyll at all.

(b) Chlorophyll is present but masked Q R
by other pigments. P

(c) Only green plants can prepare food.
(a) Pot P (b) Pot Q kept (c) Pot R kept
kept in direct in direct sun- in the dark,
(d) Red leaves absorb only red light. sunlight, with light, without with water
water water

84 Computational Thinking-7 (Science)