Question

choose the correct answer

1)

Which functional group is always found in alcohols?

phosphate

hydroxyl

2)

Ibuprofen, a drug used to relieve inflammation and pain, is a mixture of two enantiomers; that is, molecules that ________.

Group of answer choices

differ in the arrangement of atoms around their double bonds

have identical chemical formulas but differ in the branching of their carbon skeletons

are mirror images of each other

differ in the location of their double bonds

carbonyl

sulfhydryl

3)

Nucleic acids are polymers made up of which of the following monomers?

Group of answer choices

sugars

amino acids

nucleotides

nitrogenous bases

4)

Misfolding of polypeptides is a serious problem in cells. Which of the following diseases are associated with an accumulation of misfolded polypeptides?

Group of answer choices

albinism

Alzheimer's and Parkinson's

sickle cell disorder

diabetes mellituse

Answer 1

1, hydroxyl

Hydroxyl group - OH groupd is found in all alcohols

2, mirror images of each other

Enantiomers are molecules which can exist in two configurations and those configurations are non superimposable mirror images of each other.

3, Nucelotides

A nucleotide consists of a nitrogenous base (A or T or G or C), deoxyribose sugar and phosphate group. This makes up the monomer of a DNA

4, ALzeimers and Parkinsons are srious problems due to accumulation os misfolded proteins

Alzeimers is due to the abnormal accumulation of amyloid proteins in brain nerve cells.

Parkinsons is due to death of brian nerve cells which secrete dopamine.

Both are irreversible diseases