Micro true or false test 1

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created 5 years ago by Amanda_Nicole_Wiggins
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updated 5 years ago by Amanda_Nicole_Wiggins
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1

The production of human blood-clotting factor by E. Coli is an example of bioremediation.

False

2

Christian Gram devised a staining technique that divides all bacteria into two groups.

True

3

Gene therapy is modern approach to preventing infectious disease.

False

4

Joseph Lister reduced the incidence of wound infections in health care settings by using chlorinated lime water.

False

5

Fermentation can occur in the absence of living cells.

True

6

Lazzaro Spallanzani was the first scientist to provide evidence disproving the spontaneous generation of microorganisms.

True

7

The taxonomic scheme developed by Linnaeus remains largely uncharged in modern biology.

False

8

Desaturation of a protein is always permanent.

False

9

One of the products of dehydration synthesis reactions is water.

True

10

Salts are produced from exchange reactions in which acids and bases neutralize each other.

True

11

Hydrogen bonds are stronger then covalent bonds.

False

12

Monosaccharides are usually found in cyclic forms.

True

13

The smallest chemical unit of matter are elements.

False

14

Light rays that pass through the edge of a curved lens will be refracted more than those that pass through the center.

True

15

Three-dimensional images of specimens can be obtained using scanning electron microscopes.

True

16

Members of the genera bacillus and clostridium can be identified using the Endospore stain.

True

17

Robert Whittaker proposed the system of binomial nomenclature that we use today.

False

18

Acid-fast cells such as Mycobacterium lose the color of the primary stain in the presence of hydrochloric acid.

False

19

The three domains proposed by Carl Woese are the Archaea, the Eukarya, and the Monera.

False

20

A resolution of 1um would be better than a resolution of 0.5 um.

False

21

Lysosomes result from the endocytosis of food particles by eukaryotic cells.

False

22

Svedbergs are measurements of the size and sedimentation rate of cellular structures such as ribosomes.

True

23

All cell membranes contain phospholipids and a wide variety of proteins.

False

24

Peroxisomes contain enzymes used to digest nutrients that have been brought into the cell through phagocytosis.

False

25

Chloroplasts use light energy to produce ATP and carbohydrates.

True

26

The Golgi body prepares cellular products for export.

True

27

Chromatin is composed of DNA and special packaging proteins called hopanoids.

False

28

Eukaryotic ribosomes are composed of 60S and 40S subunits.

True

29

The process of facilitated diffusion requires an input of energy.

False

30

Bacterial protein synthesis can begin before the reading of the gene is complete.

True