Table of Contents
- 1 What percentage of protoplasm is water?
- 2 In which solution does protoplasm shrink?
- 3 What is protoplasm Class 8?
- 4 What is protoplasm percent composition?
- 5 Is turgor a pressure?
- 6 What is protoplasm Class 9?
- 7 When does growth occur in a protoplasm cell?
- 8 Is the protoplasm in the control center of the cell?
What percentage of protoplasm is water?
The approximate percentage of water in protoplasm is about 85% to 90%. The water forms the dispersion medium in which other elements lie suspended. water is free water in which various inorganic substances and organic compounds are found dissolved.
What is composition of protoplasm?
The protoplasm is the living part of a cell, which is surrounded by a plasma membrane. It is mainly composed of a mixture of macromolecules like amino acids, ions, monosaccharides and macromolecules like proteins, polysaccharides, nucleic acids, lipids and water and inorganic salts.
In which solution does protoplasm shrink?
Plasmolysis vs. turgidity
| Plasmolysis | Turgidity |
|---|---|
| Cell shrinks as the protoplasm and the plasma membrane pulls away from the cell wall | Cell swells as the protoplasm and the plasma membrane presses against the cell wall |
| Occurs when the cell is in a hypertonic solution | Occurs when the cell is in a hypotonic solution |
What is the percentage of organic compound in the dry matter of protoplasm?
9.2 Chemical Composition of Protoplasm
| Substance | Percent Dry Weight |
|---|---|
| Other nitrogen-containing compounds | 12 |
| Fat | 18 |
| Lecithin | 5 |
| Cholesterin | 1 |
What is protoplasm Class 8?
Answer: Protoplasm is the entire content of a living cell. It includes the cytoplasm and the nucleus of a cell.
Is water a constituent of protoplasm?
The most abundant inorganic constituent of the protoplasm is the water. Water constitutes about 65 to 80 per cent of the protoplasm. The water is the best biological solvent for inorganic substances such as mineral ions, salts, etc., and organic compounds such as carbohydrates and proteins.
What is protoplasm percent composition?
Generally the protoplasm consists of oxygen, carbon, hydrogen and nitrogen. Approximately the oxygen is 62%, carbon 20%, hydrogen 10% and nitrogen 3%.
What is protoplasm short answer?
Protoplasm is the living part of the cell, which comprises of different cellular organelles. The term protoplasm was proposed in the year 1835 and is known as the primary substance, as it is responsible for various living processes. It was believed that cell were containers of protoplasm.
Is turgor a pressure?
turgor, Pressure exerted by fluid in a cell that presses the cell membrane against the cell wall. Turgor is what makes living plant tissue rigid. Loss of turgor, resulting from the loss of water from plant cells, causes flowers and leaves to wilt.
Which element is more in protoplasm?
For all living organisms, nitrogen is important because it is a big part of amino acids, which are the building blocks for proteins and nucleic acids such as DNA. Whereas other elements are important to any living thing and make up 99% of the mass of protoplasm collectively. Option C is correct.
What is protoplasm Class 9?
Hint: Protoplasm is considered as the living part of the cell. It comprises different cellular organelles. It is a jelly-like, colorless, transparent, and viscous living substance present within the cell wall.
Which is the liquid form of a protoplasm?
The liquid aspect of protoplasm is transparent. Depending on the functional state of the cell, protoplasm can take a liquidy and slightly gel-like form (like egg whites), a semi-solid form (like jelly), or a solid form.
When does growth occur in a protoplasm cell?
Growth occurs on cell division; the protoplasm is consumed and the scale expanded. A cell’s maximum size is largely limited by its surface area. Beyond the maximum size, the increase in a number of cells occurs when further growth of tissue is essential. This is done by cell division.
Who was the first person to use the term protoplasm?
In 1872, Beale created the vitalist term “bioplasm”, to contrast with the materialism of Huxley. In 1880, term protoplast was proposed by Hanstein (1880) for the entire cell, excluding the cell wall, and some authors like Julius von Sachs (1882) preferred that name instead of cell.
Is the protoplasm in the control center of the cell?
surrounding the cell nucleus (control center) refers to cytoplasm, a gel-like substance found inside the cell. In such cases, the protoplasm inside the nucleus is referred to as the nucleoplasm.