Download App

Classification of Plants — BIOLOGY STD 7 — Question

ICSE BoardEnglish MediumSTD 7BIOLOGYClassification of Plants2 Marks
Question
What is a contractile vacoule? State its function in amoeba.
✓

Answer

Excess of water from the body of the amoeba is collected in the contractile vacuole. Ammonia is soluble in water. Hence, sometimes ammonia is expelled out along with the water from the contractile vacuole.
Function:The contractile vacuole expands when there is water in it and shrinks when the water is released into the surrounding.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[2 Mark Question Answer]" from Classification of Plants→Classification of Plants — all question types→BIOLOGY STD 7 question papers→ICSE Board STD 7 question papers→ICSE Board question paper generator→

Similar questions

Give two important features of angiosperms.
→
Find the odd one out. Give reasons:
ureter, kidney, urinary bladder, lung, urethra
→
Why is a cell called the structural and functional unit of a living organism ?
→
Which tissue is responsible for the increase in the height of a plant ? Where is it located ?
→
What is the function of meristematic tissue ?
→
What are the nerves? Mention the types of nerves found in humans.
→
Give reasons:
Cells are called the building blocks of life.
→
Name the five kingdom proposed in the five kingdom classification
→
What is external respiration ?
→
What are voluntary and involuntary actions? Which part of the nervous system controls them?
→