Question:
Fluid mosaic model of cell membrane was put forward by
Fluid mosaic model of cell membrane was put forward by
Updated On: Aug 20, 2024
- Danielli and Davson
- Singer and Nicolson
- Garner and Allard
- Watson and Crick.
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
According to the fluid mosaic model of cell membrane structure proposed by Singer and Nicolson (1972) plasma membrane contains about 50-60% proteins and 50^0% lipids. Lipids form a bilayer with hydrophilic heads pointing outwards. Cell membrane allows transport of some molecules by passive transport e.g., water, neutral solutes while some are transported actively e.g., Na+/K+ pump.
Was this answer helpful?
1
0
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
- Biology
- Cell: the unit of life
How many different proteins does the ribosome consist of?
- NEET (UG) - 2023
- Biology
- 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
- Biology
- Cell: the unit of life
Movement and accumulation of ions across a membrane against their concentration gradient can be explained by
- NEET (UG) - 2023
- Biology
- Cell: the unit of life
Which micronutrient is required for splitting of water molecule during photosynthesis?
- NEET (UG) - 2023
- Biology
- Cell: the unit of life
View More Questions
Questions Asked in NEET exam
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The potential (V) at any axial point, at 2 m distance(r) from the centre of the dipole of dipole moment vector \(\vec{P}\) of magnitude, 4 × 10-6 C m, is ± 9 × 103 V.
(Take \(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)
Reason R : \(V=±\frac{2P}{4\pi \epsilon_0r^2}\), where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :- NEET (UG) - 2024
- Magnetic Field
- Given below are two statements:
Statement I: Mitochondria and chloroplasts both double membranes bound organelles.
Statement II: Inner membrane of mitochondria is relatively less permeable, as compared chloroplast. I
In the light of the above statements, choose the mis appropriate answer from the options given below- NEET (UG) - 2024
- Cell structure and organelles
- Match List I with List II:Choose the correct answer from the options given below:
List I
List II
A Mesozoic Era I Lower invertebrates B Proterozoic Era II Fish & Amphibia C Cenozoic Era III Birds & Reptiles D Paleozoic Era IV Mammals - NEET (UG) - 2024
- Origin Of Life
- A parallel plate capacitor is charged by connecting it to a battery through a resistor. If I is the current in the circuit, then in the gap between the plates :
- NEET (UG) - 2024
- Capacitors and Capacitance
- The terminal voltage of the battery, whose emf is\(10V\) and internal resistance \(1\), when connected through an external resistance of \(42\) as shown in the figure is:
- NEET (UG) - 2024
- Resistance and Resistivity
View More Questions
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
