Description : What is symport ? (a) Counter transport (b) Contransport (c) Carrier mediated diffusion (d) Solvent drug
Last Answer : Ans: B
Description : The rate of solid-liquid extraction is limited by the (A) Phase change of the solute as it dissolves in the solvent (B) Diffusion of the solute through the solvent in the pores to the outside of the particle (C) ... contact with the particle to the main bulk of the solution (D) All 'a', 'b' & 'c'
Last Answer : (D) All 'a', 'b' & 'c'
Description : Separation of the isotopes of helium for scientific investigations is done by (A) Reverse osmosis (B) Thermal diffusion (C) Leaching (D) Solvent extraction
Last Answer : (B) Thermal diffusion
Description : In diffusion, particle/molecules moves from region of
Last Answer : Ans. Higher to lower concentration
Description : Why do solute particles have to be mixed with solvent particles in order to create a solution?
Last Answer : That's basically what "solution" means.
Description : Which of the following represents the accepted method of cleaning dust and foreign particles from electrical equipment while limiting damage to electric components? A. Carefully wiping off the components ... the components. D. Using carbon tetrachloride as a cleaning solvent to clean the components.
Last Answer : Answer: C
Description : Which organelle of cell is non living?
Last Answer : Ans. Cell wall
Description : The arrangement of primary particles of soil
Last Answer : Ans. Soil structure
Description : The hydroxide act as cementing agent in binding the soil particles together
Last Answer : Ans. Fe and Al
Description : When do the particles stop moving across the membrane in diffusion?
Last Answer : Particles in a given medium stop moving across the membraneduring diffusion when a state of equilibrium is reached, that iswhen the number of particles on either side of the membraneequalizes.
Description : Pick out the wrong statement. (A) The binary diffusivity in liquids is of the order of 10 -5 cm2 /sec (B) Molecular diffusion in solid is much faster than that in liquids ( ... Poiseuille's law, the permeability decreases with increase in temperature for flow of a gas through a given capillary
Last Answer : (B) Molecular diffusion in solid is much faster than that in liquids
Description : Operating principle of cyclone separator is based on the action of __________ dust particles. (A) Diffusion of (B) Centrifugal force on (C) Gravitational force on (D) Electrostatic force on
Last Answer : (B) Centrifugal force on
Description : For the non catalytic reaction of particles with surrounding fluid, the same needed to achieve the same fractional conversion for particles of different unchanging sizes is proportional to the particle diameter, when the ... through ash layer (C) Chemical reaction (D) Either (A), (B) or (C)
Last Answer : (C) Chemical reaction
Description : For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, ... through ash layer (C) Chemical reaction (D) Either (A), (B) or (C)
Last Answer : (B) Diffusion through ash layer
Description : The random movement of particles in solution towar a uniform distribution is termed: a) osmosis b) repulsion c) diffusion d) facilitated diffusion
Last Answer : ANSWER: C -- DIFFUSION
Description : $ Both the solute and solvent can pass through a semipermeable membrane. ! A semipermeable membrane is always living.
Last Answer : $ Both the solute and solvent can pass through a semipermeable membrane. ! A semipermeable membrane is always ... D. If both As and R are wrong.
Description : The variety of living organisms (flora and fauna) is called as
Last Answer : Ans. Biodiversity
Description : All the populations of the different species living and inter-acting in the same ecosystem?
Last Answer : Ans. Community
Description : The study of interactions between living organism and environment is called as
Last Answer : Ans. Ecology
Description : The loss of water in the form of vapour from the living aerial parts of the plant is known as
Last Answer : Ans. Transpiration
Description : How many kind of cells are found in living world?
Last Answer : Ans. 2 (Eukaryote and Prokaryote)
Description : The form of DNA present in living organisms
Last Answer : Ans. B-form
Description : The hydrostatic pressure generated within the cell against cell wall as a result of entry of water into it, due to osmosis.
Last Answer : Ans. Turgor pressure
Description : Capability of an isolated single cell to multiply and differentiate into multicellular organism
Last Answer : Ans. Totipotency
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 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 : 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.
Description : Lipids have the following properties: (A) Insoluble in water and soluble in fat solvent (B) High energy content (C) Structural component of cell membrane (D) All of these
Last Answer : Answer : D
Description : All matter, both living and nonliving, is made up of tiny particles called _______.?
Last Answer : Atoms
Description : Mean applied when deals with relative changes eg. Bacterial growth, cell division, population
Last Answer : Ans. GM
Description : Plant cell walls are
Last Answer : Ans. Permeable in nature
Description : Transplanting a cell, tissue or organ from one nutrient medium to another.
Last Answer : Ans. Subculture
Description : A hybrid produced using nucleous of one parent cell and cytoplasm of both the cell
Last Answer : Ans. Cybrid
Description : Crossing of plants through fusion of somatic cell
Last Answer : Ans. Somatic hybridization
Description : Multiplication of cell of large number of plants placed in appropriate environment conditions with required nutrients is known as
Last Answer : Ans. Plant tissue or in vitro culture
Description : Polyploidy level of testa and pollen mother cell of seed
Last Answer : Ans. 2n
Description : Which plastid of cell is responsible for storage of starch and fat in plants?
Last Answer : Ans. Leucoplast
Description : Which plastid of cell is responsible for colour in plants?
Last Answer : Ans. Chromoplast
Description : Which plastid of cell is responsible for photosynthesis in plants?
Last Answer : Ans. Chloroplast
Description : Which organelles of cell are found only in plants?
Last Answer : Ans. Plastids, Spherosome
Description : A self replicating, extra-chromosomal genetic material found in plant cell
Last Answer : Ans. Plastids
Description : Which organelle of cell is known as dustbin of cell?
Last Answer : Ans. Vacuoles
Description : Which organelle of cell is known as suicidal bag of cell?
Last Answer : Ans. Lysosome
Description : Which organelle of cell is known as engine of cell?
Last Answer : Ans. Ribosome
Description : Which cell organelle is called as “Power house of the cell”?
Last Answer : Ans. Mitochondria
Description : Controlling centre of cell
Last Answer : Ans. Nucleus
Description : The cells without cell wall
Last Answer : Ans. Protoplasts
Description : Which cell organelle is found in both prokaryotic and eukaryotic cells?