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प्रश्न
Cell is the basic unit of life. Discuss in brief.
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उत्तर
- The cell is the basic structural and functional building block of all life since, without cells, there could be no living thing. Every life starts off as a single cell.Either a single cell (unicellular) or several cells (multicellular) make up an organism.
- While each group of cells in a multicellular creature is specialised for a particular function, a single cell in a unicellular organism is capable of autonomous existence and may carry out all necessary life processes.
- Cells are the units of life that divide to create new ones, and these cells always come from the division of pre-existing ones.
- Due to the totipotency of cells, a single cell can develop into an entire creature. A cell is the fundamental building block of life since the actions of an organism are the culmination of the activities of its cells.
APPEARS IN
संबंधित प्रश्न
Indicate whether the following statements are True (T) or False (F).
The basic living unit of an organism is an organ. (T / F)
Indicate whether the following statements are True (T) or False (F).
Amoeba has irregular shape. (T / F)
Suitable term for the various components of cell is ______.
Assertion (A): Majority of cells cannot be seen directly with naked eye because.
Reason (R): Cells are microscopic.
Classify the following terms into cells, tissues, organs and write in the tabular column given below
Neuron, Lungs. Xylem, brain, adipose, Leaf, RBC, WBC, hand, muscle, heart, ovum, squamous, phloem, cartilage.
| Cell | Tissue | organ |
On the lines given below, write about what you have learned from the activities done in this lesson.
Let me tell you about some of the important things I’ve learned about cells. First, I’ll start with…______
______ is the basic structural and functional unit of every living organism.
The branch of science that deals with the study of cells is called ______.
All the cells can be seen with our naked eye.
Name the largest Angiosperm cell
Cell wall of which one of these is not made up of cellulose?
Cell theory was given by
Name the organelles which show the analogy written as under
Transporting channels of the cell——
Name the organelles which show the analogy written as under
Power house of the cell——
Why are lysosomes also known as “scavengers of the cells”?
The table given below has certain terms and four blank spaces named A, B, C and D.
| Cell | Feature/part | Function |
| Amoeba | A | Movement |
| Plant Cell | Plastid | B |
| C | Spindle shaped | Contraction |
| Nerve Cell | D | Stimuli and response |
From the options given below choose the correct combination of terms.
Stem cells can serve as an inbuilt repair system for our body.
______ first saw and described a live cell.
