Objects less than $0.2\, �m$ in size cannot be seen under light microscope because
- The wave length of visible light is $3900 \,�$ to $7800\, �$
- Only two types of lenses are used
- Maximum magnifying power of ocular lens is $20\, X$
- Maximum magnifying power of objective lens is $100\, X$
The Correct Option is A
Solution and Explanation
Top Questions on Cell: the unit of life
Match List I with List II.
List I
List II
A CCK I Kidney B GIP II Heart C ANF III Gastric gland D ADH IV Pancreas List I List II A. CCK I. Kidney B. GIP II. Heart C. ANF III. Gastric gland D. ADH IV. Pancreas Choose the correct answer from the options given below:
- NEET (UG) - 2023
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- Cell: the unit of life
How many different proteins does the ribosome consist of?
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- Cell: the unit of life
Which of the following statements are correct?
- Basophils are most abundant cells of the total WBCs
- Basophils secrete histamine, serotonin and heparin
- Basophils are involved in inflammatory response
- Basophils have kidney shaped nucleus
- Basophils are agranulocytes
Choose the correct answer from the options given below:
- NEET (UG) - 2023
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- Cell: the unit of life
Movement and accumulation of ions across a membrane against their concentration gradient can be explained by
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- Cell: the unit of life
Which micronutrient is required for splitting of water molecule during photosynthesis?
- NEET (UG) - 2023
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- Cell: the unit of life
Questions Asked in WBJEE exam
- A rectangle ABCD has its side parallel to the line y=2x and vertices A,B,D are on y=1,x=1 and x=-1 respectively. The coordinate of C can be
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- Straight lines
- ABC is an isosceles triangle with an inscribed circle with center O. Let P be the midpoint of BC. If AB=AC=15 and BC=10,then OP equals
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- Three Dimensional Geometry
- Let A=\(\begin{pmatrix} 0&0 &1 \\ 1&0 &0 \\ 0&0 &0 \end{pmatrix}\), B=\(\begin{pmatrix} 0&1 &0 \\ 0&0 &1 \\ 0&0 &0 \end{pmatrix}\) and P=\(\begin{pmatrix} 0&1 &0 \\ x&0 &0 \\ 0&0 &y \end{pmatrix}\) be an orthogonal matrix such that B=PAP-1 holds. Then
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- Matrices
Let α,β be the roots of the equation, ax2+bx+c=0.a,b,c are real and sn=αn+βn and \(\begin{vmatrix}3 &1+s_1 &1+s_2\\1+s_1&1+s_2 &1+s_3\\1+s_2&1+s_3 &1+s_4\end{vmatrix}=\frac{k(a+b+c)^2}{a^4}\) then k=
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- An electric dipole of dipole moment p is placed at the origin of the coordinate system along the z-axis. The amount of work required to move a charge 'q' from the point (a,0,0) to the point (0,0,a) is
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Concepts Used:
Cell: The Unit of Life
- A cell is derived as the functional and structural unit of life. Every cell is surrounded by a cell membrane that dissects the external and internal environments of the cell. The interior environment of a cell is called the cytoplasm.
- It carries cellular machinery and structural elements. The nucleus is present in the center of the cell, which includes all the hereditary information of an organism. Some of the molecules present in the cell are protein, carbohydrates, starch, and sugar.
Read More: Fundamental Unit of Life: Cell
Parts of Cell:
The different parts of a cell and their functions are as follows:
- Cell Membrane
- Cell Wall
- Nucleus
- Cytoplasm
