Q1 of 360 Page 100

Write down three basic characteristics of a cell.

Basic characteristics of a cell are as follows:

(i) Cell is structural and functional unit of all living beings.


(ii) Cells can replicate independently.


(iii) Cells perform all the life sustaining activities by themselves.


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2

Double Matching. Match the contents of column I, II, and III.






































Column I



Column II



Column III



(a) Multicellular organisms



(i) Lipids



I. Turgidity



(b) Mitochondrion



(ii) Plants



II. Inner folded membrane



(c) Plasma membrane



(iii) Cell sap



III. Proteins



(d) Central vacuole



(iv) Outer permeable membrane



IV. Animals



(e) Chloroplast



(v) Digestive enzymes



V. Phagosome



(f) Lysosomes



(vi) Carbon dioxide



VI. Thylakoid


 3

Key or Check List Items

Which type of metabolism, anabolism (A) and catabolism (C) are performed by the following organelles.












Organelle



Metabolism



1. Mitochondria


2. Lysosomes


3. Chloroplasts


4. Endoplasmic reticulum (ER)


5. Golgi apparatus



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 2

What do you mean by unicellular and multicellular?

 3

What is division of labour? Explain it in context of multicellular organisms.