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Micro Bio Chp 3 Exam 1 (2nd set)

1.

An atom or molecule becomes an (anion/ion/cation) when it loses an electron to a more electronegative molecule

Cation

2.

A chemical reaction in which a water molecule is a reactant is known as (dehydration/hydrolysis) reaction.

Hydrolysis

3.

A (base/acid) is a molecule that binds with hydrogen ions when it is dissolved in water.

Base

4.

The folding of a polypeptide into a three-dimensional shape is its (secondary/tertiary/quaternary) structure.

Tertiary

5.

The DNA double helix is held together by (covalent/ionic/hydrogen) bonds.

hydrogen

6.

A (catalyst/enzyme) is any molecule that speeds up a chemical reaction.

Catalyst

7.

The monomer of a nucleic acid is called a (nucleoside/nucleotide/base).

Nucleotide

8.

A chemical reaction that traps energy within newly formed chemical bonds is an (exothermic/endothermic) reaction

Endothermic

9.

A (indicator/base/buffer) is a substance that maintains the pH even when the amounts of acid and or be are changing

Buffer

10.

The sum of all of the chemical reactions within an organism is referred to as its (metabolism/physiology).

Metabolism

11.

the (atoms/isotopes/stereoisomers)of an element varying the number of neutrons in the nucleus.

isotopes

12.

In a (hypertonic/isotonic/hypotonic) solution, an animal cell can gain so much water thai it may burst.

Hypertonic

13.

The presence of a cell (wall/membrane) enables bacterial and plant cells to resist the effects of hypotonic solutions.

wall

14.

a higher concentration of solutes corresponds to a (higher/Lower) concentration of water in a given solution.

Lower

15.

A (symport/antiport/uniport) is a carrier protein that transports two substances in the same direction across a membrane.

Symport

16.

Eukaryotic flagella are anchored by the basal body in the (cytoplasm/wall / membrane.

Cytoplasm

17.

the reserve deposits of starch or other compounds found in many prokaryotic cells are called (vacuoles/inclusions/nucleoid).

inclusions

18.

Eukaryotic cells use a process known as (pinocytosis/phagocytosis) to obtain liquids from their environment.

Pinocytosis

19.

Lipid (LPS/NAM/A/NAG) is a part of the Gram-negative cell outer membrane that can produce fever, inflammation and shock when it is released into the bloodstream.

A

20.

The smooth endoplasmic reticulum is the site of (protein/lipid/carbohydrate) synthesis.

Lipid

21.

Fibrous structures some archaea use for attachment to surfaces are (hami/fimbriae).

Hami

22.

A (capsule/slime layer/matrix) is a type of glycocalyx that is firmly attached to the cell.

Capsule

23.

Goli Bodies are examples of a (membranous/non-membranous/cellular)organelle.

Membranous

24.

the semiliquid matrix of the nucleus is called the (cytoplasm/nucleoid/nucleoplasm).

Nucleoplasm

25.

A structural molecule found in eukaryotic cytoskeletons, flagella, cilia, and centrioles is (flagellin/tubulin/fibrin).

Tubulin

26.

A (monocular/binocular/compound) microscope has a single ocular lens.

Monocular

27.

A (acidic/metallic/fluorescent) molecule is one that absorbs invisible radiation and emits visible light.

Fluorescent

28.

The total magnification using a 10 ocular and a 100 objective would be (110/1000/10000) X.

1000

29.

A (decolorizer/mordant/fixer) is a substance that binds to a dye and makes it less soluble.

Mordant

30.

Coating a specimen with a heavy metal is a step in preparing it for (phase/fluorescent/electron) microscopy.

Electron

31.

A serological test that involves the clumping of antigen and antibody is the (agglutination/antigen/ELISA) test.

agglutination

32.

the system of taxonomy used today was originated by (Linnaeus/Darwin/Woese).

Linnaeus

33.

Carl Woese and his colleagues proposed the (phylum/domain), a taxon that contains multiple kingdoms.

Domain

34.

Bacterial viruses, called (bacteriophages/phages/bacteriotypes), can be used to help classify different groups of bacteria.

Bacteriotypes

35.

A primary purpose for the use of stains in microscopy is the increase the (magnification/brightness/contrast) of a specimen.

Contrast

36.

An integral part of serological testing is the use of a solution called (blood/plasma/antiserum) that contains antibodies.

antiserum

37.

In a compound microscope, the lens that directs light through the specimen is the (ocular/condenser/objective) lens.

Condenser

38.

the process of immobilizing organisms on a glass slide through the application of either heat or chemicals is (staining/mordant/fixation).

Fixation

39.

A staining procedure that uses a single basic dye is called a (simple/basic/cationic) stain.

Simple