PHS 912: Sept 17

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1 point

________ are the building blocks of proteins

1 point

Glycine is the only amino acid that is not chiral (Not R, S, D or L)

True

False

1 point

All L amino acids are S amino acids except cysteine which is R.

True

False

1 point

__________ contain a ceramide backbone, fatty acid, and a polar head group.

1 point

Which of the following is polar?

Cholesterol

Acylglycerol

Eicosanoids

Phosphoacylglycerols

Phospholipids

Triacyglycerol

1 point

Phospholipids are charged at neutral pH

True

False

1 point

__________ are precursors to cholesterol, bile acids, hormones, and vitamin D-like compounds.

1 point

Steroids are derivatives of perhydrocyclopentanophenanthrene.

True

False

1 point

Sphingolipids are glycerol based.

True

False

10.

1 point

_______ are glycerol based hormones that are involved in a variety of functions.

11.

1 point

pKa goes up as the charge goes down.

True

False

12.

1 point

The C2 position of Eicosanoids often contain unsaturated fatty acids particularly arachidonic acid.

True

False

13.

1 point

Which of the following is a purine?

Nicotinic Acid

Guanine

Thymine

Adenine

14.

1 point

__________ acylglycerols contain 2 or more different fatty acids.

15.

1 point

The ordering of amino acids is the ___________.

Primary Structure

Tertiary Structure

Quaternary Structure

Secondary Structure

16.

1 point

Acylglycerols contain 3 fatty acids esterified to a glycerol.

True

False

17.

1 point

Which of the following is functional group of NAD?

Pyridine

Guanine

Pyrimidine

Adenine

18.

1 point

Lipids are not reduced compounds.

True

False

19.

1 point

Nucleosides can have no phosphate, Nucleotides have one or more phosphates.

True

False

20.

1 point

Only L amino acids are used to make proteins.

True

False

21.

1 point

Which of the following can tautomerize?

Adenine

Thymine

Guanine

Nicotinic Acid

22.

1 point

________ and _________ are nucleoside bases that have both a 5 and 6 membered ring.

23.

1 point

Amino acids consist of which of the following?

Carboxylic Acid

Hydrogen

R Side Chain

Amino Group

Central Carbon

24.

1 point

The more cholesterol in the lipid bilayer, the less fluid it is.

True

False

25.

1 point

Eicosanoids can serve as a precursor for Prostaglandins, Leukotrienes, and Thromboxanes.

True

False

26.

1 point

___________ is a non polar lipid.

Triacylglycerol

Phospholipid

Eicosanoid

Cholesterol

27.

1 point

___________ acylglycerols contain the same fatty acid at all three positions.

28.

1 point

Which of the following is a pyrimidine?

Thymine

Adenine

Guanine

Nicotinic Acid

29.

1 point

Which of the following is a pyridine?

Thymine

Nicotinic Acid

Adenine

Guanine

30.

1 point

All amino acids are minimally diprotic and have a pH~2.

True

False

31.

1 point

__________ phospholipids have phoshatidic acid or choline in the R3 position.

32.

1 point

In general, fatty acids provide twice as much energy as sugar.

True

False

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