Micro Bio Chp 3 Exam 1 (2nd set)

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Microbiology
Chapters 2-4
Microbiology Kingwood Tx
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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