Question
1. Which of the following biomolecules has the highest respiratory quotient (RQ A. Carbohydrates B. Proteins C. Lipids D. None of the above 2. Galactosemia may be caused by inherited defects in the following: A. Galactokunase B. Galactose-1- phosphate uridyltransferase C. Uridine Diphosphogalactose -4 -Epimerase D. All of the above. 3. Which of the following is NOT a phospholipid? A. Phosphatidyl ethanolamine B. Phosphotidylsemine C. Phosphatidylglycrol D. 3-phosphocholine 4. Which of the following amino acid skeletons is an intermediate for oxaloacetat A. Aspartate B. Tyrosine C. Isolecicine D. Glutamate 5. The following enzymes are involved in normal DNA replication. Which one i A. DNA ligae B. Helicase C. Primase D. DNA polymerase I 6. Sucrose is composed of which TWO sugars: A. Glucose and Glucose B. Glucose and fructose C. Glucose and galactose D. Fructose and galactose.
Solution
3.7
(199 Votos)
Ricardo
Elite · Tutor por 8 anos
Resposta
1. A2. D3. C4. A5. B6. B
Explicação
1. The respiratory quotient (RQ) is a measure of the efficiency of cellular respiration. Carbohydrates have the highest RQ value of 1.0, meaning they produce more carbon dioxide per unit of oxygen consumed.2. Galactosemia is a genetic disorder that affects the body's ability to metabolize the sugar galactose. It can be caused by defects in enzymes such as Galactokinase, Galactose-1-phosphate uridyltransferase, and Uridine Diphosphogalactose-4-Epimerase.3. Phospholipids are a major component of all cell membranes. Phosphatidyl ethanolamine, Phosphotidylsemine, and 3-phosphocholine are all phospholipids. However, Phosphatidylglycrol is not a recognized phospholipid.4. In biochemistry, certain amino acids can serve as intermediates in various metabolic pathways. Aspartate is an intermediate for oxaloacetate in the citric acid cycle.5. DNA replication is a process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Enzymes like Helicase, Primase, and DNA polymerase I are involved in this process. DNA ligase, on the other hand, is involved in DNA repair in normal DNA replication.6. Sucrose is a disaccharide sugar composed of two monosaccharides: glucose and fructose.