Description : There are two properties of the cell necessary to maintain nonequilibrium cellular composition; the first is selectivity and the second is energy conversion. Which of the following statement(s ... transported via secondary active transport include hydrogen ions, calcium, amino acids and glucose
Last Answer : Answer: c, d The selectivity of the plasma membrane, although impressive, cannot account for the nonequilibrium composition of living cells. A cell can be maintained in a nonequilibrium state only by ... to drive the transport of a second species such as protons, calcium, amino acids, or glucose
Description : What is the energy source used in active transport through biological membranes ?
Last Answer : The energy necessary for active transport (against the concentration gradient of the transported substance) to occur comes from ATP molecules. The active transportation uses chemical energy from ATP.
Description : .E.coli cells with a mutated z gene of the lac operon cannot grow in medium containing only lactose as the source of energy because (a) the lac operon is constitutively active in these cells ( ... coli cells do not utilise lactose (d) they cannot transport lactose from the medium into the cell.
Last Answer : (b) they cannot synthesise functional beta galactosidase
Description : Active and passive transports across cell membrane differ in (a) passive transport is nonselective (b) passive transport is along the concentration gradient while active transport is due to metabolic ... (d) passive transport is confined to anions while active transport is confined to cations.
Last Answer : (b) passive transport is along the concentration gradient while active transport is due to metabolic energy
Description : Function of companion cells is (a) providing energy to sieve elements for active transport (b) providing water to phloem (c) loading of sucrose into sieve elements by passive transport (d) loading of sucrose into sieve elements.
Last Answer : (d) loading of sucrose into sieve elements.
Description : 07. What is implied by «active transport»? a) Transport of drugs trough a membrane by means of diffusion b) Transport without energy consumption c) Engulf of drug by a cell membrane with a new vesicle formation
Last Answer : d) Transport against concentration gradient
Description : Active transport of a substance across biological membranes has the following characteristics except: A. It is specific B. It is pH dependent C. It is saturable D. It requires metabolic energy
Last Answer : B. It is pH dependent
Description : Which organelle breaks down sugar molecules that’s supply energy to the cell?
Last Answer : mitochondria
Description : In the cell which organelle has the function of using oxygen in the breakdown of glucose releasing energy and carbon dioxide?
Last Answer : The mitochondria.
Description : What is organelle absorbs energy from the sunlight and uses it to make food?
Last Answer : Feel Free to Answer
Description : What cellular organelle uses oxygen and glucose to provide energy to a cell?
Description : What is a energy converting organelle found in plants and algae cells?
Last Answer : What is the answer ?
Description : ______ is the cell organelle, in which the biochemical processes of respiration and energy production occur. (1) Mitochondria (2) Chloroplast (3) Ribosomes (4) Nucleus
Last Answer : (1) Mitochondria Explanation: Mitochondria is an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur.
Description : Select the alternative giving correct identification and function of the organelle A' in the diagram. (a) Mitochondria - Produce cellular energy in the form of ATP (b) Golgi body - ... packaging material (c) Lysosomes - Secrete hydrolytic enzymes (d) Endoplasmic reticulum - Synthesis of lipids
Last Answer : (a) Mitochondria - Produce cellular energy in the form of ATP
Description : In which organelle following reaction takes place 6 CO2 + 6 H2O + energy (from sunlight) ---------> C6H12O6 + 6 O2 (A) Mitochondrion (B) Peroxisome (C) Chloroplast (D) Glyoxysome
Last Answer : (C) Chloroplast
Description : The transport of a pair of electrons from NADH to O2 via the electron transport chain produces (A) –52,580 cal (B) –50,580 cal (C) 21,900 cal (D) +52,580 cal
Last Answer : D
Description : Identify the molecules (A) and (B) shown below and select the right option giving their source and use. (a) (A) Cocaine Erythroxylum Accelerates coca the transport of dopamine (b ... - Atropa Produces noid belladonna hallucinations (d) (A) Morphine Papaver Sedative and somniferum pain killer
Last Answer : (d) (A) Morphine Papaver Sedative and somniferum pain killer
Description : Optically active amine having molecular formula `C_(5)H_(13)N` on reaction with `NaNO_(2)+HCI` produces, `3^(@)` optically inative alcohol. Find out s
Last Answer : Optically active amine having molecular formula `C_(5)H_(13)N` on reaction with `NaNO_(2)+HCI` produces, ` ... out structures of amines: A. B. C. D.
Description : Compared to older tetracyclines, doxycycline produces a lower incidence of superinfection diarrhoea because (a) It is completely absorbed in the small intestines so that drug concentration in the colonic ... (d) It is a potent tetracycline and inhibits the superinfection causing microbes as well
Last Answer : Ans: A
Description : Cefotaxime has the following properties except (a) It is highly active against aerobic gram negative bacteria (b) It is the most active cephalosporin against Pseudomonas aeruginosa (c) It produces an active metabolite (d) It has achieved high cure rates in serious hospital acquired infections
Last Answer : Ans: B
Description : Thiabendazole is rarely used now because: A. It frequently produces incapacitating side effects B. It produces lower cure rates in intestinal helminthiasis than mebendazole or albendazole C. It ... fasting and post treatment purgative D. It is not active against roundworm and hookworm
Last Answer : A. It frequently produces incapacitating side effects
Description : The following is true of clarithromycin except: A. It produces less gastric irritation and pain than erythromycin B. It is the most active macrolide antibiotic against Helicobacter pylori ... terfenadine or cisapride to cause cardiac arrhythmias D. It exhibits dose dependent elimination kinetics
Last Answer : C. It does not interact with terfenadine or cisapride to cause cardiac arrhythmias
Description : Compared to older tetracyclines, doxycycline produces a lower incidence of superinfection diarrhoea because: A. It is completely absorbed in the small intestines so that drug concentration in the colonic contents ... the microbes of the normal gut flora D. It is a potent tetracycline and inhibits
Last Answer : A. It is completely absorbed in the small intestines so that drug concentration in the colonic contents is low
Description : Cefotaxime has the following properties except: A. It is highly active against aerobic gram negative bacteria B. It is the most active cephalosporin against Pseudomonas aeruginosa C. It produces an active metabolite D. It has achieved high cure rates in serious hospital acquired infections
Last Answer : B. It is the most active cephalosporin against Pseudomonas aeruginosa
Description : The following is not true of naltrexone: A. It produces agonistic actions of its own in the absence of morphine B. It is active orally C. It has a long duration of action D. It can reduce craving for alcohol in chronic alcoholics
Last Answer : A. It produces agonistic actions of its own in the absence of morphin
Description : What is the difference between active and passive transport?
Last Answer : A: Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy and involves the movement of substances down their concentration gradient.
Description : What is the difference between a passive and active transport?
Last Answer : A: Passive transport does not require energy and involves the movement of molecules from high to low concentration, while active transport requires energy and involves the movement of molecules from low to high concentration.
Description : What do the processes of active transport and facilitated process have in common?
Last Answer : answer:Billy. Did you mean to tag this with “cell phones” or are you asking about cells? Also, is there another term for “facilitated process”? Might you be referring to “facilitated diffusion”?
Description : What is the difference between active and passive transport? -Biology
Last Answer : answer:
Description : What is active transport in cells? -Biology
Description : Explain active transport of substances across cell membranes. -Biology
Description : Define active transport. -Biology
Description : Link between active transport and respiration? -Biology
Description : Theories of active transport of mineral salts. -Biology
Description : To perform active transport, cells use?
Last Answer : atp and transport proteins. novanet.
Description : The high osmolarity of the renal medulla is maintained by all of the following except (i) Active transport of salt from the upper region of the ascend
Last Answer : The high osmolarity of the renal medulla is maintained by all of the following except (i) Active transport of salt ... v C. ii and iii D. iv and v
Description : How is facilitated diffusion similar to active transport How is it different?
Last Answer : Need answer
Description : In situations the cell use active transport?
Description : Oxygen diffuses through this structure, but a sodium ion may need active transport. Which structure is this statement most likely referring to?
Last Answer : A semipermeable membrane (APEX)
Description : The active transport of ‘Ca’ is regulated by __________ which is synthesized in kidnyes. (A) Cholecalciferol (B) Ergosterol (C) 25-OH cholecalciferol (D) 1, 25-di OH-Cholecalciferol
Last Answer : Answer : D
Description : The active transport system for hepatic uptake of bilirubin is congenitally defective in (A) Gilbert’s disease (B) Crigler-Najjar syndrome (C) Rotor’s syndrome (D) Dubin-Johnson syndrome
Last Answer : Answer : A
Description : The third active process for amino acids transport involves (A) Acidic amino acids (B) Basic amino acids (C) Neutral amino acids (D) Sulphur containing amino acids
Last Answer : Answer : C
Description : The transport of amino acids regulated by active processes of different numbers: (A) 1 (B) 2 (C) 3 (D) 4
Description : Active transport of sugar is depressed by the agent: (A) Oxaloacetate (B) Fumarate (C) Malonate (D) Succinate
Last Answer : C
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 absorption of intact protein from the gut in the foetal and newborn animals takes place by (A) Pinocytosis (B) Passive diffusion (C) Simple diffusion (D) Active transport
Last Answer : A
Description : The fatty acids can be transported into and out of mitochondria through (A) Active transport (B) Facilitated transfer (C) Non-facilitated transfer (D) None of these
Description : The exchange of material takes place (A) Only by diffusion (B) Only by active transport (C) Only by pinocytosis (D) All of these