Description : Cell becomes turgid because of - (1) Plasmolysis (2) Exosmosis (3) Endosmosis (4) Diffusion
Last Answer : (3) Endosmosis Explanation: When the plant cell is placed in a hypotonic solution, it takes up water by osmosis and starts to swell, but the cell wall prevents it from bursting. The plant cell is ... become "turgid" i.e. swollen and hard. So it is because of endosmosis that cell becomes turgid.
Description : Stomatal opening is based on (1) Exosmosis (2) Endosmosis (3) Plasmolysis in guard cells (4) Decrease in concentration of cell sap
Last Answer : Endosmosis
Description : Stomatal opening is based on (1) Exosrnosis (2) Endosmosis (3) Plasmolysis in guard cells (4) Decrease in concentration of cell sap
Last Answer : (2) Endosmosis Explanation: According to the K+ ion theory the guard cells absorb K+ ions from the cells around them as they produce ATP (due to photosynthesis) and become ... guard cells become turgid and the stomata opens. Decreasing light intensity and photosynthesis causes Stomatal closing.
Description : Earthworms have no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to (a) gut peristalsis (b) setae (c) coelomic fluid (d) blood.
Last Answer : (c) coelomic fluid
Description : The cell that expanded itself to this point is called turgid cell ?
Last Answer : Cell Membrane Review - Image Diversity: plasmolysed cell flaccid cell turgid cell
Description : When a cell is fully turgid, which of the following will be zero? (a) Turgor pressure (b) Water potential (c) Wall pressure (d) Osmotic pressure
Last Answer : (b) Water potential
Description : SO2 pollution causes a) Plasmolysis b) Destruction of cell wall c) Destruction of Golgi bodies
Last Answer : c) Destruction of Golgi bodies
Description : $ Exosmosis causes turgidity. ! Endomosis causes flaccidity.
Last Answer : $ Exosmosis causes turgidity. ! Endomosis causes flaccidity. A. If both As and R are correct and R is ... is wrong D. If both As and R are wrong.
Description : Shrinkage of protoplasm due to outward flow of water (exosmosis) in a concentrate solution.
Last Answer : Ans. Plasmolysis
Description : The nutritive tissue around the embryo in seed is a. Endosmosis b. Endodermis c. Endosperm d. Embryo-sac
Last Answer : Endosperm
Description : When cells are turgid, they are: a. Deflated b. Ruptured c. Inflated d. Joined with other cells
Last Answer : Inflated
Description : Explain why only turgid leaf is selected for the preparation of a temporary mount of a leaf peel?
Last Answer : Answer. When guard cells are turgid, the stoma remains open and stomatal aperture is easily observable.
Description : What is plasmolysis ? -Biology
Last Answer : When a living plant cell loses water through osmosis there is shrinkage or contraction of the contents of the cell away from the cell wall. This phenomenon is known as Plasmolysis.
Description : When does plasmolysis occur? -Biology
Last Answer : answer:
Description : What is plasmolysis? -Biology
Description : Relationship between hypertonic and plasmolysis? -Biology
Description : What is incipient plasmolysis? -Biology
Description : The process responsible for facilitating loss of water in liquid form from the tip of grass blades at night and in early morning is (a) transpiration (b) root pressure (c) imbibition (d) plasmolysis.
Last Answer : b) root pressure
Description : Water movement between cells is due to (a) T.P. (b) W.P. (c) D.P.D. (d) incipient plasmolysis.
Last Answer : (c) D.P.D.
Description : Growth of early emerging leaves becomes faster because of- (a) Cell division and cell enlargement (b) Stunt growth of plants (c) Faster Photosynthesis (d) Low pressure of outer atmosphere
Last Answer : (b) 15°C – 40°C
Description : The Arab Spring protests of 2010 reflected global cultural diffusion because they:?
Last Answer : relied heavily on global communication technology to succeed.
Description : Oil rises up the wick in a lamp because (1) Oil is very light (2) Of the diffusion of oil through the wick (3) Of the surface tension phenomenon (4) Of the capillary action phenomenon
Last Answer : (4) Of the capillary action phenomenon Explanation: It is because of the capillary action phenomenon because of which oil rise up the wick in a lamp. Capillary action, or capillarity, is the ability ... such as paper, in some nonporous materials such as liquefied carbon fiber, or in a cell.
Description : Pieces of camphor placed on water move about rapidly. This is because of - (1) diffusion (2) viscosity (3) surface tension (4) capillarity
Last Answer : (3) surface tension Explanation: The Camphor slowly dissolves in the water lowering the latter's surface tension in the immediate neighbourhood. When after sometime the whole surface settles for the reduced tension, the movement of the camphor too short.
Last Answer : (3) surface tension Explanation: The Camphor slowly dissolves in the water lowering the latter’s surface tension in the immediate neighborhood. The stronger pull exerted by the uncontaminated portion of water brings about a movement of the surface and the camphor particles are carried along with it.
Description : Diffusion in concentrated solutions differs from that in dilute solutions, because of the change in the __________ with the concentration of the solution. (A) Degree of ideality (B) Viscosity (C) Both 'a '& 'b' (D) Neither 'a' nor 'b'
Last Answer : (C) Both 'a '& 'b
Description : Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above ... Both processes can happen together because the diffusion coefficient of water and CO2 is different
Last Answer : (d) Both processes can happen together because the diffusion coefficient of water and CO2 is different
Description : The process of one substance mixing with another because of molecular motion is called _________. a. diffusion b. viscosity c. streamline flow d. solution
Last Answer : diffusion
Description : Oral neomycin is beneficial in hepatic coma because: A. In hepatic failure patients it is absorbed from the intestines B. It decreases ammonia production by gut bacteria C. It reacts chemically with ... gut to prevent its diffusion into blood D. It induces ammonia detoxifying enzymes in the liver
Last Answer : B. It decreases ammonia production by gut bacteria
Description : 'Diffusion hypoxia’ is likely to occur only after use of nitrous oxide because it: A. Is a respiratory depressant B. Has low blood solubility and is used in high concentration C. Is a very potent anaesthetic D. Interferes with diffusion of oxygen into the tissues
Last Answer : B. Has low blood solubility and is used in high concentration
Description : The anticholinesterase action of edrophonium is short lasting because termination of its action depends on: A. Dissociation and diffusion of the drug from the enzyme B. Hydrolysis of the drug by the enzyme C. Synthesis of fresh enzyme molecules D. A combination of the above three processes
Last Answer : A. Dissociation and diffusion of the drug from the enzyme
Description : Enrichment of uranium by gaseous diffusion relies on the fact that uranium-235 diffuses through holes in the barriers more readily than uranium-238 does because uranium-235 is: w) a different chemical ... x) a different wavelength. y) resistant to magnetism. z) slightly lighter than uranium-238.
Last Answer : ANSWER: Z -- SLIGHTLY LIGHTER THAN URANIUM-238.
Last Answer : Of the capillary action phenomenon
Description : Why the process of diffusion is important in exchange of gases and water in the animal and plant cell ? -Biology
Last Answer : Diffusion is an important in exchange of gases and water in the life of a cell, in addition to this the cell also obtain nutrition from its environment.
Description : What is diffusion through a cell membrane? -Biology
Description : Osmosis is the diffusion of what substance through a cell membrane? -Biology
Description : How much water is in a cell after diffusion?
Last Answer : Need answer
Description : How do diffusion and osmosis relate to the cell membrane?
Description : What conditions will a substance be likely to enter a cell through diffusion?
Last Answer : If there is the concentration of substance inside the cell islesser than outside and cell membrane is permeable to thesubstance.
Description : Can small lipids diffuse into cell membrane through diffusion?
Last Answer : Feel Free to Answer
Description : Fatty acids can be transported into and out of cell membrane by (A) Active transport (B) Facilitated transport (C) Diffusion (D) Osmosis
Last Answer : B
Description : The diffusion of solvent particles into a living cell
Last Answer : Ans. Endosmosis
Description : In animals that do not present the circulatory system the transport of substances occurs by cell to cell diffusion. The blood is a fundamental means of substance transport for larger animals ... there are tissues distant from each other and from the environment thus making diffusion impossible.
Last Answer : What are the two types of circulatory systems?
Description : Sugars depend on which mechanism to enter the cell a. facilitated diffusion b. active transport c. both d. none of them
Last Answer : facilitated diffusion
Description : The process by which cell can take in fluid and molecules too large to be carried across the plasma membrane by active transport is called a. phagocytosis b. Pinocytosis c. absorption d. diffusion
Last Answer : Pinocytosis
Description : The process of taking dissolved material into the substance of the cell is called. a. Phagocytosis b. Pinocytosis c. absorption d. diffusion
Last Answer : absorption
Description : In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed, would drive (a) K+ into the cell (b) K+ and Na+ out of the cell (c) Na+ into the cell (d) Na+ out of the cell.
Last Answer : c) Na+ into the cell
Description : Two cells A and B are contiguous. Cell A has osmotic pressure 10 atm, turgor pressure 7 atm and diffusion pressure deficit 3 atm. Cell B has osmotic pressure 8 atm, turgor pressure 3 atm and diffusion pressure ... two (c) movement of water from cell A to B (d) movement of water from cell B to A.
Last Answer : (c) movement of water from cell A to B
Description : The movement of glucose into a cell occurs by a. Facilitated diffusion. b. Active transport. c. Simple diffusion. d. Phospholipid exchange.
Last Answer : b. Active transport.