A well organized cell maintains homeostasis, i.e., constant internal chemical composition. It is, therefore, able to perform basic functions such as respiration, obtaining nutrition, clearing of waste, forming new proteins, etc. If the organization of a cell is destroyed, it will not be able to mainRead more
A well organized cell maintains homeostasis, i.e., constant internal chemical composition. It is, therefore, able to perform basic functions such as respiration, obtaining nutrition, clearing of waste, forming new proteins, etc. If the organization of a cell is destroyed, it will not be able to maintain homeostasis and thus will not be able to perform above said basic functions and such a cell will ultimately die.
Carbon dioxide (CO₂) moves in and out of the cells by the process of diffusion. Diffusion involves movement of molecules from higher concentration to lower concentration across the plasma membrane. Water moves in and out of the cells by osmosis. Osmosis is the movement of water or solvent through aRead more
Carbon dioxide (CO₂) moves in and out of the cells by the process of diffusion. Diffusion involves movement of molecules from higher concentration to lower concentration across the plasma membrane. Water moves in and out of the cells by osmosis. Osmosis is the movement of water or solvent through a semipermeable membrane from a solution of lower concentration of solutes to a solution of higher concentration of solutes to which the membrane is relatively impermeable. Both diffusion and osmosis are physical or mechanical processes and do not require spending of energy for their performance by the cells.
All living organisms are made up of cells. Thus, cell is the structural unit of life. Each living cell has the capacity to perform certain basic functions that are characteristics of all living forms. Each cell acquired distinct structure and function due to the organization of its membrane and cytoRead more
All living organisms are made up of cells. Thus, cell is the structural unit of life. Each living cell has the capacity to perform certain basic functions that are characteristics of all living forms. Each cell acquired distinct structure and function due to the organization of its membrane and cytoplasmic organelles in specific way. Each kind of cell organelle performs a special function, such as making new materials in the cell (e.g., chloroplast, ribosomes), clearing up the waste materials from the cells (e.g., lysosomes), utilisation of oxygen in oxidation of food and energy production (e.g., mitochondria), movement (microtubules containing spindle, cilia, flagella), etc. A cell is able to live and perform all its functions because of these organelles. These organelles together constitute the basic unit of structure and function called the cell.
If the organization of a cell is destroyed due to some physical or chemical influence, what will happen?
A well organized cell maintains homeostasis, i.e., constant internal chemical composition. It is, therefore, able to perform basic functions such as respiration, obtaining nutrition, clearing of waste, forming new proteins, etc. If the organization of a cell is destroyed, it will not be able to mainRead more
A well organized cell maintains homeostasis, i.e., constant internal chemical composition. It is, therefore, able to perform basic functions such as respiration, obtaining nutrition, clearing of waste, forming new proteins, etc. If the organization of a cell is destroyed, it will not be able to maintain homeostasis and thus will not be able to perform above said basic functions and such a cell will ultimately die.
See lessCan you name the two organelles we have studied that contain their own genetic material?
(a) Mitochondria; (D) Chloroplasts (plastids).
(a) Mitochondria; (D) Chloroplasts (plastids).
See lessWhy is the plasma membrane called a selectively permeable membrane?
Plasma membrane is called selectively permeable membrane because it allows the movement of only selected molecules across it and not all of them.
Plasma membrane is called selectively permeable membrane because it allows the movement of only selected molecules across it and not all of them.
See lessHow do substances like CO2 and water move in and out of the cell? Discuss.
Carbon dioxide (CO₂) moves in and out of the cells by the process of diffusion. Diffusion involves movement of molecules from higher concentration to lower concentration across the plasma membrane. Water moves in and out of the cells by osmosis. Osmosis is the movement of water or solvent through aRead more
Carbon dioxide (CO₂) moves in and out of the cells by the process of diffusion. Diffusion involves movement of molecules from higher concentration to lower concentration across the plasma membrane. Water moves in and out of the cells by osmosis. Osmosis is the movement of water or solvent through a semipermeable membrane from a solution of lower concentration of solutes to a solution of higher concentration of solutes to which the membrane is relatively impermeable. Both diffusion and osmosis are physical or mechanical processes and do not require spending of energy for their performance by the cells.
See lessWhy is the cell called the structural and functional unit of life?
All living organisms are made up of cells. Thus, cell is the structural unit of life. Each living cell has the capacity to perform certain basic functions that are characteristics of all living forms. Each cell acquired distinct structure and function due to the organization of its membrane and cytoRead more
All living organisms are made up of cells. Thus, cell is the structural unit of life. Each living cell has the capacity to perform certain basic functions that are characteristics of all living forms. Each cell acquired distinct structure and function due to the organization of its membrane and cytoplasmic organelles in specific way. Each kind of cell organelle performs a special function, such as making new materials in the cell (e.g., chloroplast, ribosomes), clearing up the waste materials from the cells (e.g., lysosomes), utilisation of oxygen in oxidation of food and energy production (e.g., mitochondria), movement (microtubules containing spindle, cilia, flagella), etc. A cell is able to live and perform all its functions because of these organelles. These organelles together constitute the basic unit of structure and function called the cell.
See less