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The given graphs show the amount of four different components of food P, Q, R and S before and after digestion. Which of these represents roughage?



AP
BQ
CR
DS

Refer to the given flow chart and select the option which correctly identifies P-S.

Life cycle of involves



A a and b only
B b, c and d
C a, c and d
D a, b and c

Insoluble impurities can be removed by

ASedimentation
BFiltration
CDecantation
DAll of these

Swati took four syringes with stoppers inserted at their nozzles. Each syringe contains a different substance. All syringes are completely filled with their contents such that their plungers are pulled out to the maximum. Which of the following plunger can be pushed in?

A
B
C
D

Given statements show different steps involved in digestion of food.
Select the option showing correct sequence of different steps.
a.  The acid and digestive juices break down the food into simpler substances.
b.  Water is absorbed from the undigested food
c.  Food is chewed and mixed with saliva.
d.  Most of nutrients are absorbed from the food.

A c → b → a → d
B c → a → d → b
C a → c → d → b
D a → b → c → d

Shuchi shone a ray of light onto sheet P as shown in the diagram. She found that a bright circle appeared only on sheet S. What can we deduce about the properties of sheets P, Q, R and S?


ASheet Q is made up of a translucent material.
BSheet R is made up of a translucent material.
CSheets R and S are made up of an opaque material.
DSheets P and S are made up of an opaque material.

Select the odd one out in relation to the raw materials for food preparation in plants.

ASunlight
BChlorophyll
CCarbon dioxide
DOxygen