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प्रश्न
Which of the following is not a cell?
पर्याय
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
Assertion (A): Tissue is a group of dissimilar cells.
Reason (R): Muscle is made up of Muscle cell.
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 |
______ cells are specialised cells that can be transformed into any kind of cells.
______ is the basic structural and functional unit of every living organism.
Which of the following can be made into crystal?
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?
Match the terms given in column I with their functions given in column II and fill the blanks given below the table :
| Column I | Column II |
| A. Chloroplast | i) carries hereditary characters |
| B. Cell membrane | ii) controls the activities of cells |
| C. Nucleus | iii) site of photosynthesis |
| D. Chromosome | iv) controls the movement of materials into and out of cells. |
A - ______ ; B - ______ ; C - ______ ; D - ______
Stem cells can serve as an inbuilt repair system for our body.
______ first saw and described a live cell.
Name the following:
A pigment which is not found in plastids.
