Description : Ketone bodies serve as a fuel for (A) Extrahepatic tissues (B) Hepatic tissues (C) Erythrocytes (D) Mitochondria
Last Answer : Answer : A
Description : An enzyme required for the synthesis of ketone bodies as well as cholesterol is (A) Acetyl CoA carboxylase (B) HMG CoA synthetase (C) HMG CoA reductase (D) HMG CoA lyase
Last Answer : Answer : B
Description : Ketone body utilisation is taking place in which organs?
Last Answer : Ketolysis is taking place in extra hepatic tissues. (All other tissues, except liver).
Description : Which one of the following tissues can metabolize glucose, fatty acids and ketone bodies for ATP production? a. Liver b. Muscle c. Brain d. R.B.C
Last Answer : Ans: B
Description : Ketone bodies are utilized by all tissues except Options: 1) Liver 2) Muscle 3) Heart 4) Kidney
Last Answer : Correct Answer: 1) Liver
Description : Acetyl CoA required for de novo synthesis of fatty acids is obtained from (A) Breakdown of existing fatty acids (B) Ketone bodies (C) Acetate (D) Pyruvate
Last Answer : Answer : D
Description : Acetyl-CoA can be formed from (A) Pyruvate (B) Fatty acids (C) ketone bodies (D) All of these
Description : The structure which appears to be the only organ to add significant quantities of ketone bodies to the blood is (A) Brain (B) Erythrocytes (C) Liver (D) Skeletal muscle
Last Answer : Answer : C
Description : In humans under normal conditions loss of ketone bodies via urine is usually less than (A) 1 mg/24 hr (B) 4 mg/24 hr (C) 8 mg/24 hr (D) 10 mg/24 hr
Description : The concentration of ketone bodies in the blood does not normally exceed (A) 0.2 mmol/L (B) 0.4 mmol/L (C) 1 mmol/L (D) 2 mmol/L
Description : All the following correctly describe the intermediate 3-OH-3-methyl glutaryl CoA except (A) It is generated enzymatically in the mitochondrial matrix (B) It is formed in the cytoplasm (C) It inhibits the first step in cholesterol synthesis (D) It is involved in the synthesis of ketone bodies
Description : All the following statements correctly describe ketone bodies except (A) They may result from starvation (B) They are present at high levels in uncontrolled diabetes (C) They include—OH β-butyrate and acetone (D) They are utilized by the liver during long term starvation
Description : Which of the following products of triacylglycerol breakdown and subsequent β-Oxidation may undergo gluconeogenesis? (A) Acetyl CoA (B) Porpionyl CoA (C) All ketone bodies (D) Some amino acids
Description : All the following statements regarding ketone bodies are true except (A) They may result from starvation (B) They are formed in kidneys (C) They include acetoacetic acid and acetone (D) They may be excreted in urine
Description : Ketone bodies are synthesized from fatty acid oxidation products by which of the following organs? (A) Liver (B) Skeletal muscles (C) Kidney (D) Brain
Description : All of the following tissue are capable of using ketone bodies except (A) Brain (B) Renal cortex (C) R.B.C. (D) Cardiac muscle
Description : A pathway that requires NADPH as a cofactor is (A) Fatty acid oxidation (B) Extra mitochondrial denovo fatty acid synthesis (C) Ketone bodies formation (D) Glycogenesis
Description : The acetyl CoA formed on β-oxidation of all long chain fatty acids is metabolized under normal circumstances to (A) CO2 and water (B) Cholesterol (C) Fatty acids (D) Ketone bodies
Description : Ketone bodies are formed in (A) Kidney (B) Liver (C) Heart (D) Intestines
Description : All the following statements about ketone bodies are true except (A) Their synthesis increases in diabetes mellitus (B) They are synthesized in mitchondria (C) They can deplete the alkali reserve (D) They can be oxidized in the liver
Description : Ketone bodies are synthesized in (A) Adipose tissue (B) Liver (C) Muscles (D) Brain
Description : In human and other ureotelic organisms, the end product of amino acid nitrogen metabolism: (A) Bile acids (B) Ketone bodies (C) Urea (D) Barium sulphate
Description : During starvation, ketone bodies are used as a fuel by (A) Erythrocytes (B) Brain (C) Liver (D) All of these
Last Answer : B
Description : What test is used to identify ketone bodies in urine?
Last Answer : Rotheraís test.
Description : Ketone bodies are formed in which tissue?
Last Answer : Liver.
Description : What are ketone bodies?
Last Answer : Aceto acetate, beta hydroxy butyric acid, and acetone.
Description : The presence of ketone bodies in urine are indicative of ?
Last Answer : The presence of ketone bodies in urine are indicative of ? A. Diabetes insipidus B. Diabetes mellitus C. Starvation D. Both 2 and 3
Description : presence of ketone bodies in urine is called
Last Answer : presence of ketone bodies in urine is called
Description : Which one of the following is an abnormal constituent of urine? (1) Creatinine (2) Urea (3) Uric acid (4) Ketone bodies
Last Answer : (4) Ketone bodies Explanation: Ketone bodies are three watersoluble compounds that are produced as byproducts when fatty acids are broken down for energy in the liver. Two of the three are ... exceeds the rate of utilization, their concentration in blood increases, this is known as ketonemia.
Description : Insulin release from pancreatic β cells is augmented by the following except: A. Ketone bodies B. Glucagon C. Vagal stimulation D. Alfa adrenergic agonists
Last Answer : D. Alfa adrenergic agonist
Description : Which one of the following is an abnormal constituent of urine ? (1) Creatinine (2) Urea (3) Uric acid (4)Ketone bodies
Last Answer : Ketone bodies
Description : Which of the following statement(s) is/are true concerning carbon dioxide kinetics? a. The amount of carbon dioxide produced is equivalent to the amount of oxygen consumed b. Carbon dioxide levels ... tissues d. The amount of carbon dioxide excreted is a function of ventilation of perfused alveoli
Last Answer : Answer: a, c, d The total amount of carbon dioxide produced by systemic metabolism is roughly equivalent to the amount of oxygen consumed (100-120 cc/m2/min, 200 cc/min in a typical ... carbon dioxide excreted is a function of ventilation of perfused alveoli (i.e. the alveolar ventilation/min).
Description : Which of the following statement(s) is/are true concerning oxygen delivery? a. The amount of oxygen delivered to peripheral tissues is dependent upon the oxygen content in arterial blood and cardiac ... O2/dL d. Normal systemic oxygen delivery for a typical adult is approximately 1000 cc/min
Last Answer : Answer: a, c, d The amount of oxygen that is delivered to peripheral tissues is the product of the oxygen content in arterial blood times the cardiac output. Normally, oxygen content of arterial blood is ... of venous blood is 16 cc/dL. Hence, the normal arterial-venous difference is 4 cc O2/dL
Description : How different are oxyhemoglobin and hemoglobin?Where is it expected to find a higher concentration of oxyhemoglobin, in peripheral tissues or in the lungs?
Last Answer : Oxygen-bound hemoglobin is called oxyhemoglobin. In the lungs the oxygen concentration is higher and so there is a higher oxyhemoglobin concentration. In the peripheral tissues the situation is the ... lower and there is more free hemoglobin. The Circulatory System - Image Diversity: oxyhemoglobin
Description : The closed circulatory system is more efficient. Since blood circulates only inside blood vessels it can do it with more pressure reaching farther distances between the organs where hematosis ... exchange independently from the circulation) are generally slower and have a low metabolic rate.
Last Answer : What is the difference between octopuses and mussels regarding their circulatory systems?
Description : The following statement is true about endogenous opioid peptides: A. They activate only μ opioid recepors B. They do not occur in peripheral tissues C. They mediate stress induced analgesia D. Naloxone fails to antagonise their actio
Last Answer : C. They mediate stress induced analgesia
Description : ntithyroid drugs exert the following action: A. Inhibit thyroxine synthesis B. Block the action of thyroxine on pituitary C. Block the action of TSH on thyroid D. Block the action of thyroxine on peripheral tissues
Last Answer : A. Inhibit thyroxine synthesis
Description : Antithyroid drugs exert the following action: A. Inhibit thyroxine synthesis B. Block the action of thyroxine on pituitary C. Block the action of TSH on thyroid D. Block the action of thyroxine on peripheral tissues
Last Answer : . Inhibit thyroxine synthesis
Description : Which one of the following statements concerning glucose-6-phosphate dehydrogenase deficiency is correct? (A) Young R.B.Cs, particularly reticulocytes, contain the highest enzyme activity cells show less enzyme ... PD gene (D) G-6-PD deficiency is precipitated by ingestion of drugs such as aspirin
Description : Site of enzyme synthesis in a cell is (A) Ribosomes (B) RER (C) Golgi bodies (D) All of these
Description : The enzyme pyruvate carboxylase is present in (A) Cytosol (B) Mitochondria (C) Nucleus (D) Golgi bodies
Description : The percentage of food nitrogen that is retained in the body represents (A) Digestibility coefficient (B) Biological value of proteins (C) Protein efficiency ratio (D) Net protein utilisation
Description : In a person increase in weight in gms per gm of protein consumption represents (A) Protein efficiency ratio (B) Digestibility value of proteins (C) Biological value of proteins (D) Net protein utilisation
Description : The percentage of nitrogen retained in the body after absorption of diet represents (A) Digestibility coefficient of proteins (B) Biological value of proteins (C) Protein efficiency ratio (D) Net protein utilisation
Description : Ketosis reflects (A) Increased hepatic glucose liberation (B) Increased fatty acid oxidation (C) Increased carbohydrate utilisation (D) Incresed gluconeogenesis
Description : Impaired galactose tolerance test suggests (A) Defect in glucose utilisation (B) Liver cell injury (C) Renal defect (D) Muscle injury
Description : The gain in body weight (gm) per gm of protein ingested is known as (A) Net protein utilisation (B) Protein efficiency ratio (C) Digestibility coefficient (D) Biological value of protein
Description : Net protein utilisation depends upon (A) Protein efficiency ratio (B) Digestibility coefficient (C) Digestibility coefficient and protein efficiency ratio (D) Digestibility coefficient and biological value
Description : The percentage of ingested protein/ nitrogen absorbed into blood stream is known as (A) Net protein utilisation (B) Protein efficiency ratio (C) Digestibility coefficient (D) Biological value of protein