What are the correct answers to this page of questions? 4. Consider the followin

Question

What are the correct answers to this page of questions?

4. Consider the following two statements about lipids Fose 1) Because lateral shift of a phospholipid is not as rapid as rotation/flex of that same phospholipid, it requires the presence of an enzyme to occur 2) A phospholipid with two 18:0 fatty acids is called sphingomyelin; a phospholipid with one 16:0 and one 16:1 fatty acid is called phosphatidyl choline. Determine which one of the options below is correct Statement-1) and-statement 2) are bottrtrue. Statement 1) and statement 2) are both false B se D. Statement 1) is false; statement 2) is true. 5. Which of the following statements about cells and molecules is incorrect? Condensation reactions are involved in the synthesis of carbohydrates, proteins, nucleic acids, and membrane lipids As cells get larger, their surface area-to-volume ratio increases. A bacterial species may possess a capsule layer, but the bacteria do not depend on that capsule for survival. Polysaccharides with beta glycosidic linkages are more likely to serve a structural role than polysaccharides with alpha glycosidic linkages. None of the above; all of these statements about cells and molecules are correct. A. C. D. E. Which of the following chemical formulas would represent an oligosaccharide of four pentose sugars? 6. 200 3H2 How many dipeptides are possible with a polar amino acid at the N-terminus and a basic amino acid at the C-terminus? 7. 10 C. 15 D. 60 E. 400 3

Explanation / Answer

4. Correct option will be B) Statement 1 and statement 2, both are false.

Lateral shift is slower (~10-6 sec) than flip (~10-9 sec), but enzyme is not required.

Sphingomyelin is with C18:1/C16:0.

5. "B" is the correct option since it is incorrect.

The surface area to volume ratio increases as the cell gets smaller.

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