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प्रश्न
Which of the following is not a cell?
विकल्प
Red Blood Corpuscle (RBC)
Bacterium
Spermatozoa
Virus
उत्तर
Virus
Explanation -
Virus is not considered a cell. It is an exception to the cell theory and cannot survive on its own.
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संबंधित प्रश्न
Choose the correct option.
Cell Membrane is composed of ______.
Basis unit of life.
I convert the Sun’s energy into food for the plant. Who am I?______
The branch of science that deals with the study of cells is called ______.
The cell is self-sufficient and carries out all the fundamental and essential functions of an organism.
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
We eat food composed of all the nutrients like carbohydrates, proteins, fats, vitamins, minerals, and water. After digestion, these are absorbed in the form of glucose, aminoacids, fatty acids, glycerol etc. What mechanisms are involved in absorption of digested food and water?
Choose the correct statements.
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)___.
______ first saw and described a live cell.
