Page 41 - Viva ICSE Science 4 : E-book

EXERCISES

A. Fill in the blanks.

1. Chewing helps in breaking down food into ____________ pieces and mixing it
with the ____________.

2. The ____________ is a ‘J’-shaped, bag-like organ.

3. ____________ is a long, coiled tube-like structure.

4. ____________ fi lters blood to produce urine.

5. ____________ are the thin tubes that carry urine from kidney to the urinary
bladder.

6. Food pipe is also known as ____________.

7. ____________ carries urine from bladder to the outside of the body.

B. Tick () the correct answer.

1. The undigested food passes into the ____________.

(a) large intestine (b) small intestine
(c) stomach (d) anus

2. Food is fi rst softened with a watery substance called ____________.

(a) pulp (b) plaque

(c) saliva (d) blood

3. Not drinking suffi cient water may cause ____________.

(a) constipation (b) digestion

(c) excretion (d) sweating

4. The process of removal of wastes from the body is called ____________.

(a) digestion (b) excretion

(c) respiration (d) chewing

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