Description : Which of the following eicosanoids is generated through the lipozygenase pathway ? (a) Prostaglandin E2 (b) Thromboxane A2 (c) Prostacyclin (d) Leukotriene C4
Last Answer : Ans: D
Description : TNF-ais an example of eicosanoids (a) Interleukins (b) Cytotoxic factors (c) Interferons (d) Colony stimulating factors
Last Answer : Ans: B
Description : The primary objective for designing drugs that selectively inhibit COX - 2 is to (a) Decrease the risk of nephrotoxicity (b) Improve anti-inflammatory effectiveness (c) Lower the ... of treatment of rheumatoid arthritis (e) Selectively decrease thromboxane A2 without effects on other eicosanoids
Last Answer : Ans: C
Description : Prostaglandins: a. contains 20 carbon atoms b. are unsaturated fatty acids containing a cyclopentane ring c. the different types of prostaglandins are classified according to the configuration of the cyclopentane ring d. all above
Last Answer : all above
Description : A FDA – approved ingredient for protection against painful sensitivity of the teeth due to cold, heat, acids, sweets or contact is (a) Dicalcium phosphate (b) Sodium lauryl sulfate (c) 5% potassium nitrate (d) Zinc chloride (e) Calcium carbonate
Description : The fatty acids containing even number and odd number of carbon atoms as well as the unsaturated fatty acids are oxidized by (A) α-oxidation (B) β-oxidation (C) ω-oxidation (D) All of these
Last Answer : Answer : B
Description : Which one of the following biomolecules is correctly characterized? (a) Lecithin-a phosphorylated glyceride found in cell membrane. (b) Palmitic acid - an unsaturated fatty acid with 18 carbon atoms. ... Alanine amino acid - contains an amino group and an acidic group anywhere in the molecule.
Last Answer : (a) Lecithin-a phosphorylated glyceride found in cell membrane
Description : What are unsaturated fatty acids? -Biology
Last Answer : answer:
Description : What are unsaturated fatty acids ?
Last Answer : Lubricants that are liquid are called oils . Oil is an unsaturated fatty acid.
Description : Predominant fatty acids in meat are (A) Saturated (B) Monounsaturated (C) Polyunsaturated (D) Mono and poly-unsaturated
Last Answer : Answer : A
Description : Unsaturated fatty acids is known as (A) Non-essential fatty acids (B) Essential fatty acids (C) Cerebrosides (D) Phospholipids
Description : Consider the following statements: 1. Normal diet should contain 75gm of fat. 2. Fatty acids should be a part of human diet. 3. The cells of the human body cannot synthesise any fatty acids. 4. Deficiency diseases develop due to the absence ... correct? (a) 1, 2 (b) 2, 3 (c) 1, 2, 3, 4 (d) 1, 2, 4
Last Answer : Ans:(b)
Description : Membrane lipids of chillsensitive plants contain - (1) low proportion of saturated fatty acids. (2) low proportion of unsaturated fatty acids. (3) equal proportion of saturated and unsaturated fatty acids. (4) high proportion of unsaturated fatty acids.
Last Answer : (4) high proportion of unsaturated fatty acids. Explanation: The membranes of chill sensitive plants have been found to have about a 2:1 ratio of unsaturated to saturated fatty ... increases and the critical temperature decreases when chill-sensitive plants are acclimated to a low temperature.
Description : Drying oils contain a fairly large proportion of – (1) fats (2) proteins (3) saturated fatty acids (4) unsaturated fatty acids
Last Answer : (4) unsaturated fatty acids Explanation: They contain a high percentage of "polyunsaturates" (polyunsaturated fatty acids). Most drying oils owe their drying properties to the presence of a large percentage of linolenic acid (which derives its name from "linseed"), which is highly unsaturated.
Description : When unsaturated fatty acids are oxidised, how many ATP is formed?
Last Answer : The energy yield is less by 2 ATP molecules per double bond, when compared to the corresponding chain length saturated fatty acid.
Description : Name some unsaturated fatty acids.
Last Answer : Oleic, linoleic, linolenic and arachidonic acids.
Description : Which of the following statements is not true about fatty acids? (a) Fatty acids are carboxylic acids with long hydrocarbon side chains. (b) The double bonds in unsaturated fatty acids are always ... contain even numbers of carbons and are unbranched. (d) Fatty acids can be saturated or unsaturated
Last Answer : The double bonds in unsaturated fatty acids are always conjugated
Description : Fatty acids are (a) Unsaturated dicarboxylic acids (b) Long-chain alkanoic acids (c) Aromatic carboxylic acids (d) Aromatic dicarboxylic acids
Last Answer : Long-chain alkanoic acids
Description : Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil. (A) Drying (B) Semi-drying (C) Non-drying (D) None of these
Last Answer : (C) Non-drying
Description : Fats as compared to oils have (A) More unsaturated glycerides of fatty acids (B) Less unsaturated glycerides of fatty acids (C) Much higher reactivity to oxygen (D) Lower melting point
Last Answer : (B) Less unsaturated glycerides of fatty acids
Description : What chemical functionality do unsaturated fatty acid contain that saturated fatty acids do not?
Last Answer : ANSWER: DOUBLE BONDS or CARBON-CARBON DOUBLE BONDS
Description : Membrane lipids of chillsensitive plants contain (1) low proportion of saturated fatty acids. (2) low proportion of unsaturated fatty acids. (3) equal proportion of saturated and unsaturated fatty acids. (4) high proportion of unsaturated fatty acids.
Last Answer : high proportion of unsaturated fatty acids.
Description : Drying oils contain a fairly large proportion of (1) fats (2) proteins (3) saturated fatty acids (4) unsaturated fatty acids
Last Answer : unsaturated fatty acids
Description : Generally the earliest manifestation of salicylism is (a) Visual disturbance (b) Excitement (c) Hyperventillation (d) Tinnitus
Description : In the treatment of chronic inflammatory diseases, the most important limitation of aspirin is (a) Acid – base and electrolytc disturbances (b) Hypersensitivity and idiosyncratic reactions (c) Gastric mucosal damage (d) Salicylism
Description : Aspirin reduces fever by (a) Decreasing heat production in the body (b) Enhancing cutaneous blood flow (c) Inducing sweating (d) Both (b) and (c)
Description : Aspirin produces analgesia by (a) Preventing sensitization of peripheral pain receptors (b) Affecting gating of pain impulses at spinal level (c) Raising pain threshold at subcortical level (d) Both (a) and (b)
Description : The distinctive feature of the isoenzyme cyclooxygenase-2 is (a) It is not inhibited by indomethacin (b) It is inducible (c) It generates cytoprotective prostagladins in gastric mucosa (d) It is found only in foetal tissues
Description : Following mediators are involved in acute inflammation except (a) Histamine (b) Leukotrienes (c) Interferons (d) Bradykinin
Description : Lower dose of naloxone is required to (a) Antagonise the actions of nalorphine (b) Antagonise the actions of pentazocine (c) Precipitate withdrawal in mildly morphine dependent subjects (d) Precipitate withdrawal in highly morphine dependent subjects
Description : Which action of morphine is incompletely reversed by naloxone ? (a) Analgesia (b) Respiratory depression (c) Sedation (d) Miosis
Description : Pentazocine differs from morphine in that (a) It is inactive by the oral route (b) It does not produce physical dependence (c) It has a lower ceiling of analgesic effect (d) Its action is not blocked by naloxone
Description : Which of the following is an agonistantagonist type of opioid analgesic (a) Pethidine (b) Pentazocine (c) Fentanyl (d) Buprenorphine
Description : Morphine has high affinity for the following opioid receptor(s). (a) µ (Mu) (b) k (Kappa) (c) d (Delta) (d) All of the above
Last Answer : Ans: A
Description : An opioid analgesic is preferred over aspirin like analgesic in the following condition. (a) Acute gout (b) Burn (c) Toothache (d) Neuralgia
Description : Select the analgesic which acts through opioids as well as additional spinal monoaminergic mechanisms. (a) Tramadol (b) Ethoheptazine (c) Dextropropoxyphene (d) Alfentanil
Description : Which of the following opioid analgesics is similar to codeine in pharmacological profile but is less constipating ? (a) Methadone (b) Buprenorphine (c) Butorphanol (d) Dextropropoxyphene
Description : Which of the following opioids is more potent than morphine ? (a) Pethidine (b) Fentanyl (c) Dextropropoxyphene (d) Tramadol
Description : Morphine is contraindicated in head injury because (a) It does not relieve the pain of head injury (b) It can raise intracranial tension (c) It can cause constipation (d) It is liable to cause addiction
Description : Morphine dependence is characterized by (a) Marked drug seeking behavior (b) Physical dependence without psychic dependence (c) Physical as well as psychic dependence (d) Both (a) and (c)
Description : Instead of being effective in hyperuricaemia following drug is contradictred in the treatment of gout (a) Indomethacin (b) Diclofenac (c) Piroxicam (d) Aspirin
Description : In a comatose patient suspected of poisoning, which of the following findings would be against the drug being morphine (a) Selegiline (b) Chlorgiline (c) Moclobemide (d) Tranylcypromine
Description : Instead of depressing, morphine stimulates (a) Vasomotor centre (b) Edinger westphal nucleus (c) Temperature regulating centre (d) Cough centre
Description : In man sedation caused by morphine is characterized by (a) Initial excitement (b) Little or no motor incoordination (c) Rise in seizure threshold (d) All of the above
Description : Morphine produces analgesia by acting at (a) Peripheral pain receptors (b) A spinal site (c) Suspraspinal sites (d) Both (b) and (c)
Description : Which of the following bones is affected more by glucocorticoid induced osteoporosis? (a) Femur (b) Humerus (c) Radius (d) Lumber vertebra
Description : The following adverse effect of corticosteroids is due to their mineralocorticoid action (a) Osteoporosis (b) Rise in blood pressure (c) Moon face (d) Increased susceptibility to infection
Description : Systemic corticosteroid therapy is not used routinely and is reserved only for severe cases of (a) Exfoliative dermatitis (b) Posterior uveitis (c) Acute rheumatic fever (d) Hodgkin’s disease
Description : For limiting cerebral edema due to brain tumour, the preferred corticosteroids are betamenthasone/dexamethasone because (a) They do not cause Na+ and water retention (b) They are more potent (c) They can be administered intravenously (d) They inhibit brain tumours
Description : Corticosteroid therapy is practically mandatory in the following condition. (a) Septic shock (b) Renal transplant (c) Rheumatoid arthritis (d) Ulcerative colitis