Description : Adenosine Triphosphate (ATP) is (a) an enzyme (b) a protein (c) a hormone (d) a molecule with high energy bonds
Last Answer : Ans:(d)
Description : The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphate (ATP) is formed because (a) a proton gradient forms across the inner membrane (b) there is a ... mitochondrial proteins (d) ADP is pumped out of the matrix into the intermembrane space.
Last Answer : (a) a proton gradient forms across the inner membrane
Description : Which of the following statements are true of oxidants? A. In addition to their pathophysiologic roles in inflammation, injury, and infection, oxidants also have physiologic roles. B. Oxidants may ... involved the catalytic production of superoxide anion (O 2 ) by the enzyme xanthine oxidase.
Last Answer : Answer: ABCD DISCUSSION: Oxidants are reactive oxygen metabolites that have both physiologic and pathophysiologic roles. As potent oxidizing agents, oxidants are involved in cytochrome P ... leukocyte infiltration and activation, causing further tissue damage by the release of cytotoxic proteases
Description : Mitochondria can be considered the ____________of the cell because they generate an enormous amount of cellular adenosine triphosphate (ATP) to fuel the cell.
Last Answer : “Power plant” or “Power house”
Description : 5’-Terminus of mRNA molecule is capped with (A) Guanosine triphosphate (B) 7-Methylguanosine triphophate (C) Adenosine triphosphate (D) Adenosine diphosphate
Last Answer : Answer : B
Description : Post-transcriptional modification of hnRNA involves all of the following except (A) Addition of 7-methylguanosine triphosphate cap (B) Addition of polyadenylate tail (C) Insertion of nucleotides (D) Deletion of introns
Last Answer : Answer : C
Description : Write a note on ATP (Adenosine Tri-Phosphate). -Biology
Last Answer : answer:
Last Answer : : Chemical signal of phosphorus trichloride PCl3
Description : Sulphur trioxide is dissolved in heavy water to form a compound X. The hybridisation state of sulphur in X is
Last Answer : Sulphur trioxide is dissolved in heavy water to form a compound X. The hybridisation state of sulphur in X is A. `SP^ ... `SP^(3)` C. SP D. `dSP^(2)`
Last Answer : Chemical signal of sulfur trioxide SO3
Description : Pick out the wrong statement. (A) Conversion of SO2 to SO3 in Monsanto-4 pass converter is about 98% (B) The chemical formula of oleum is H2S2O7 , which is formed by saturating ... but technical sulphuric acid (D) Decomposition of sulphuric acid on heating does not start before its boiling
Last Answer : (D) Decomposition of sulphuric acid on heating does not start before its boiling
Description : All the following statements about ACTH are true except (A) It is a tropic hormone (B) Its target cells are located in adrenal cortex (C) Its receptors are located in the cell membrane (D) Its second messenger is inositol triphosphate
Last Answer : Answer : D
Description : When cells breakdown a sugar molecule completely to produce chemical energy (ATP), the cells need?
Last Answer : To break down sugar and produce useful energy, the cells needmany things, but most importantly they need ENZYMES.
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 : Use complete sentences to explain why AlCl3 is called “aluminum chloride†(no prefix required), but BCl3 is called “boron trichloride.�
Last Answer : Ionic compounds do not have prefixes but covalent compounds have prefixes. “Aluminum chloride†is a ionic compound and "boron tri-chloride†is a covalent compound.
Description : To effectively clean a commutator in good physical condition, you should use ____________. A. trichloride ethylene B. kerosene C. a canvas wiper D. a commutator stone
Last Answer : Answer: C
Description : Phosphorus trichloride, `PCl_(3)` undergoes, hydrolysis at room temperature to produce an oxoacid. It has the formula :
Last Answer : Phosphorus trichloride, `PCl_(3)` undergoes, hydrolysis at room temperature to produce an oxoacid. It has the formula : ... 3)PO_(4)` D. `H_(3)PO_(2)`
Description : Which statement regarding iodine trichloride is Incorrect.
Last Answer : Which statement regarding iodine trichloride is Incorrect. A. (A) It forms dimer in gaseous state ... a mixture of iodous acid and hydrochloric acid.
Description : What is the mass of 4.75 moles of arsenic trichloride?
Last Answer : 4,75 moles of arsenic trichloride (AsCl3) is equal to 181,28 g.
Description : The substances that can be used as explosives are 1. phosphorous trichloride 2. mercuric oxide 3. trinitrotoluene 4. nitroglycerine The correct answers are: (a) 1 and 2 (b) 2 and 4 (c) 2 and 3 (d) 3 and 4
Description : Give reasons: a) Phosphorous pentachloride is unstable. b) Phosphorous trichloride fumes in moisture.
Last Answer : Ans: a) Because of two longer axial bonds. b) Because it reacts with water and forms hydrochloric acid.
Description : The tip of the match-stick contains (1) phosphorus pentoxide (2) white phosphorus (3) red phosphorus (4) phosphorus trichloride
Last Answer : red phosphorus
Description : In cardiac cells, adenosine (a) Causes shortening of action potential duration (b) Depolarization (c) Increase in normal automaticity (d) All of the above
Last Answer : Ans: A
Description : The genetic defect-adenosine deaminase (ADA) deficiency may be cured permanently by (a) administering adenosine deaminase activators (b) introducing bone marrow cells producing ADA into ... replacement therapy (d) periodic infusion of genetically engineered lymphocytes having functional ADA cDNA
Last Answer : (b) introducing bone marrow cells producing ADA into cells at early embryonic stages
Description : Which of the following medications represents the category proton (gastric acid) pump inhibitors? a) Omeprazole (Prilosec) Omeprazole decreases gastric acid by slowing the hydrogenpotassium-adenosine ... antagonist. d) Metronidazole (Flagyl) Metronidazole is an antibiotic, specifically an amebicide.
Last Answer : a) Omeprazole (Prilosec) Omeprazole decreases gastric acid by slowing the hydrogenpotassium-adenosine-triphosphatase pump on the surface of the parietal cells.
Description : Pick out the wrong statement. (A) 'Solvates' are chemical compounds formed by solute with their solvents. When water is the solvent, then it is called a 'hydrate' (B) In heat exchanger ... vertical evaporators, area of central downtake is about 50 to 100% of the total tube cross-sectional area
Last Answer : (C) Heat transfer co-efficient during nucleate boiling is not influenced by the agitation imparted
Description : A key energy compound in bacterial photosynthesis by cyanobacteria is ______ and a major end-product is ______. a. GTP; protein b. citrate; lactose c. glucose; chlorophyll d. ATP; glucose
Last Answer : c. glucose; chlorophyll
Description : Oxidative phosphorylation is (a) formation of ATP by transfer of phosphate group from a substrate to ADP (b) oxidation of phosphate group in ATP (c) addition of phosphate group to ATP (d) formation of ATP by energy released from electrons removed during substrate oxidation.
Last Answer : (d) formation of ATP by energy released from electrons removed during substrate oxidation.
Description : The number of S-S bonds in sulphur trioxide trimer `(S_(3)O_(9))` is
Last Answer : The number of S-S bonds in sulphur trioxide trimer `(S_(3)O_(9))` is A. three B. two C. one D. zero
Description : Sulphur trioxide can be obtained by which of the following reactions :
Last Answer : Sulphur trioxide can be obtained by which of the following reactions : A. `S + H_(2)SO_(4) overset(Delta) ... `Fe_(2) (SO_(4))_(3) overset(Delta)rarr`
Description : The number of S-S bonds in sulphur trioxide trimer `(gamma-form)` is:
Last Answer : The number of S-S bonds in sulphur trioxide trimer `(gamma-form)` is: A. three B. two C. zero D. one
Last Answer : The number of S-S bonds in sulphur trioxide trimer `(S_(3)O_(9))` is A. Three B. Two C. One D. Zero
Description : Number of `S-O-S` bonds and hybridisation of sulphur in `gamma`-form of sulphur trioxide?
Last Answer : Number of `S-O-S` bonds and hybridisation of sulphur in `gamma`-form of sulphur trioxide? A. `3,sp^(2)` B. `2,sp^(2)` C. `3,sp^(3)` D. `0,sp^(3)`
Description : What is the equation when dicarbon trioxide reacts with water?
Last Answer : This oxide doesn't exist.
Description : What is carbon trioxide?
Last Answer : What is the answer ?
Description : In contrast to Eukaryotic mRNA, prokaryotic mRNA is characterized by (A) Having 7-methyl guanosine triphosphate at the 5’ end (B) Being polycystronic (C) Being only monocystronic (D) Being synthesized with introns
Last Answer : Answer : A
Description : All of the following statements about post-transcriptional processing of tRNA are true except (A) Introns of some tRNA precursors are removed (B) CCA is added at 3′ end (C) 7-Methylguanosine triphosphate cap is added at 5′ end (D) Some bases are methylated
Description : All of the following occur in orotic aciduria except (A) Increased synthesis of pyrimidine nucleotides (B) Increased excretion of orotic acid in urine (C) Decreased synthesis of cytidine triphosphate (D) Retardation of growth
Description : Hormonal stimulation of the formation of the second messenger inositol 1,4,5 triphosphate (IP3) quickly leads to the release of which other intracellular messenger? (A) cAMP (B) Prostaglandin (C) Calcinon (D) Leukotriene
Description : One of the following is not used as a second messenger by hormones: (A) mRNA (B) cAMP (C) Calcium ions (D) Myoinisotol 1, 4, 5 triphosphate
Description : Activated phospholipase C acts on (A) Phosphatidyl inositol-4, 5-biphosphate (B) Inositol-1, 4, 5-triphosphate (C) Protein kinase C (D) Pl-3 kinase
Description : The second messenger for glucocorticoids is (A) Cyclic AMP (B) Cyclic GMP (C) Inositol triphosphate (D) No second messenger is required
Description : Second messenger for glucagons is (A) Cyclic AMP (B) Diacylglycerol (C) Cyclic GMP (D) Inositol triphosphate
Description : The second messenger for PTH is (A) Cyclic AMP (B) Cyclic GMP (C) Diacylglycerol (D) Inositol triphosphate
Description : Protein kinase C is activated by (A) Cyclic AMP (B) Cyclic GMP (C) Diacyl glycerol (D) Inositol triphosphate
Description : Inositol triphosphate is the second messenger for (A) Gastrin (B) Cholecystokinin (C) Oxytocin (D) All of these
Description : Vitamin E protects the polyunsaturated fatty acids from oxidation by molecular oxygen in the formation of (A) Superoxide (B) Peroxide (C) Trioxide (D) All of these