Which of the following molecules would be non-polar? A) Triglycerides B) Carbohy

Question

Which of the following molecules would be non-polar? A) Triglycerides B) Carbohydrates C) Water D) Nucleic Acids E) All are polar When sodium chloride (salt) is dissolved in water what type of bonds form between water and the sodium and chloride 'particles'. A) Peptide B) Covalent C) Ionic D) Hydrogen E) Glycosidic Which of the following is correct? A) Proteins are made up of up to 15 amino acids B) DNA contains a carbohydrate component in it C) Carbohydrates can be information molecules D) Plant cell walls are made ridged with starch E) None of the above is true L-amino acids and R- amino acids are chemically, but not biologically, identical to each other. They are said to be: A) Optical isomers B) Structural Isomers C) Inverted repeats D) Reversed Compounds E) None of the above Which of the following functional groups is NOT found in the following compound? A) Alcohol B) Aldehyde C) Amide D) Sulfhydral E) Carboxylic Acid A structure termed a beta sheet is a component of what level of protein structure? A) Primary B) Secondary C) Tertiary D) Quaternary

Explanation / Answer

Ans-6- option a is correct I.e. triglycerides.

Ans-7- option e is correct I.e. ionic bond.

Ans-8- option b is correct I.e. DNA contain a carbohydrate compound which is ribose.

Ans-9- option a is correct I.e. optical isomers. Actually these type of isomers are called enantiomers which is a subclass of optical isomers.

Ans-10 option a is correct I.e. alcohol because its functional group OH is bonded with saturated carbon

Ans-11- option b is correct I.e. secondary structure.

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