Advertisements
Advertisements
प्रश्न
Which of the following is not correct?
विकल्प
Robert Brown discovered the cell.
Schleiden and Schwann formulated the cell theory.
Virchow explained that cells are formed from pre-existing cells.
A unicellular organism carries out its life activities within a single cell.
Advertisements
उत्तर
Robert Brown discovered the cell.
Explanation:
Robert Hooke discovered the cell and Robert Brown discovered the nucleus in the cell.
APPEARS IN
संबंधित प्रश्न
Cell is the basic unit of life. Discuss in brief.
Indicate whether the following statements are True (T) or False (F).
Muscle cells are branched. (T / F)
Growth of cell wall during cell elongation take place by ______.
Basis unit of life.
Adipose: tissue:: eye: ______.
Assertion (A): Majority of cells cannot be seen directly with naked eye because.
Reason (R): Cells are microscopic.
Why the cell is very important for us?
Nowadays an ______ microscope is used to magnify and observe the cells.
The branch of science that deals with the study of cells is called ______.
Analogy:
Smallest cell: virus.
Biggest cell: ______.
Which of these options are not a function of Ribosomes?
- It helps in manufacture of protein molecules
- It helps in manufacture of enzymes
- It helps in manufacture of hormones
- It helps in manufacture of starch molecules
Do you agree that “A cell is a building unit of an organism”. If yes, explain why?
Which of the following is not a cell?
Identify the correct statement about cells.
Fill in the blanks with the terms given in the box below:
| Nucleus, chromosomes, cell wall, cell membrane, protoplasm, cytoplasm, ribosome, cell organelles |
The outermost layer of plant cells is the ___(a)___ beneath which is the ___(b)___. The term ___(c)___ refers to the jelly-like substance containing all the ___(d)___. The ___(e)___ contains thread-like structures called ___(f)___.
Stem cells can serve as an inbuilt repair system for our body.
Give two examples of stains which make the nucleus distinct.
