Micro Quiz 1

An acid dissociates in water to release

anions and hydrogen ions

What may be a component of bacterial cell walls?

both lipteichoic and mycolic acids

What is an example of a polysaccharide?

glycogen

The reserve deposits of starch or other compounds found in many prokaryotic cells are called...

inclusions

Lipids found in the membranes of all eukaryotic cells are..

phospholipids

The primary function of proteins is energy storage. T or F?

False

The backbone of the DNA molecule is composed of..

alternating phosphates and pentoses

What is the outer ring of an atom called?

An electron shell

What is a property of water?

Has a high heat capacity

The DNA double helix is held together by _____ bonds.

Hydrogen

All of the following are components of an AA except... amino group, carboxyl group, alpha carbon, pentose group, R group

Pentose group

Which of the following is NOT a type of lipid? Triglyceride, peptidoglycan, waxes, or steroids

Peptidoglycan

Which of the following is NOT a characteristic of saturated fats? usually solid at room temp, fatty acids pack tightly together, found in animals, contain at least one double bond, form of stored energy

They contain at least one double bond

The side groups of aa can interact with each other and with other molecules. T or F?

True

Which of the following is NOT a component of bacterial flagella? filament, basal body, tubulin, hook, flagellin

Tubulin

The type(s) of bond produced when atoms with somewhat different electronegativities share electrons is/are...

a polar covalent bond

A ____ is a type of glycocalyx that is firmly attached to the cell.

capsule

A atom or molecule becomes a ____ when it loses an electron to a more electronegative molecule.

cation

Which of the following is NOT a characteristic of a phospholipid? contain two fatty acids and phosphate functional group, contain a hydrophilic phosphate head, contain fatty acids that associate with water, found in cellular membranes, can form micelles and bilayers

contain fatty acids that associate with water

The monomer of a nucleic acid is called a...

nucleotide

Which of the following is found in nucleic acids? R group, carboxylic acid, purines, amines, glycerol

purines

Protein synthesis occurs in the...

ribosome

A polymer composed of simple sugars is a...

starch

The glycocalyx of a eukaryotic cell performs these functions except...anchoring cells to each other, strengthening cell surface, transfer of genetic material between cells, protection against dehydration, and cellular recognition and communication

transfer of genetic material between cells