Quiz 1

Question 1

The purines of nuclei acids are

Answer 1

Adenine and guanine

Question 2

Plants store carbohydrates in the form of

Answer 2

Starch

Question 3

The microscopy that has the stronger resolution and magnification

Answer 3

Electron microscopy

Question 4

What determines whether a solution is acidic or basic

Answer 4

The concentration of H+ in the solutions

Question 5

When one atom donates electrons and another atom accepts those electrons, a(n) bond forms

Answer 5

Ionic

Question 6

Which of the following main groups of compounds classified as lipids are significant in the formation of biological membranes

Answer 6

Phospholipids

Question 7

Which if the following have peptide bonds

Answer 7

Polypeptides

Question 8

When did cellular life appear on earth

Answer 8

3.8 billion years ago

Question 9

The type of chemical bond produced when atoms share electrons unequally are

Answer 9

Polar covalent

Question 10

Fast growing microbes are supplied with medium containing radioactive amino acids. Which of the following would be radioactive

Answer 10

Proteins

Question 11

Electron charge

Answer 11

Negative

Question 12

Proton charge

Answer 12

Positive

Question 13

Neutron charge

Answer 13

Neutral

Question 14

Thymine contains

Answer 14

Only dna

Question 15

Adenine contains

Answer 15

Both rna and dna

Question 16

Guanine contains

Answer 16

Both dna and RNA

Question 17

Cytosine contains

Answer 17

Both rna and dna

Question 18

Uracil contains

Answer 18

Only rna

Question 19

When two monomers bond together through the loss of a water molecule you see what type of reaction

Answer 19

Dehydration

Question 20

You are working with a mixed culture that arose due to poor aseptic technique, what type of culture is this

Answer 20

Contaminated

Question 21

You increase the pH of a solution from 5 to 6. This represents a change in the number of hydrogen ions by what factor

Answer 21

10

Question 22

Phycology is the study of

Answer 22

Algae

Question 23

Microbes can be used in bioremediation

Answer 23

True

Question 24

Who described a series of logical steps that establish whether or not and organism is pathogenic and which disease is caused

Answer 24

Koch

Question 25

The assignment of scientific names to the various taxonomic categories and to individual organisms

Answer 25

Nomenclature

Question 26

Which is the larger taxonomic hierarchy category order or class

Answer 26

Class

Question 27

A key prop Perth of water that helps make life on earth possible is it’s inability to moderate temp

Answer 27

FALSE

Question 28

If the composition of a media is precisely chemically defined it is considered

Answer 28

Synthetic

Question 29

This media allows multiple types of organisms to grow but displays visible differences in how they grown such as the production of gas bubbles

Answer 29

Differential

Question 30

Exposing the inoculated medium to optimal growth contains, generally for a few hours to days

Answer 30

Incubation

Question 31

Visible light is passed through a specimen and then through glass lenses

Answer 31

Light microscope

Question 32

What type of dye may be used for creating a negative simple stain

Answer 32

Acidic

Question 33

Protein monomer

Answer 33

Amino acids

Question 34

Carbohydrates monomer

Answer 34

Monosaccharides

Question 35

Lipids monomer

Answer 35

Not made of monomers

Question 36

Nucleoside acids monomer

Answer 36

Nucleotides

Question 37

Which is true regarding early earth

Answer 37

Much hotter than present day earth Atmosphere contains high levels of CO2

Question 38

The ancestor from which all cellular life arose

Answer 38

LUCA

Question 39

Methane CH4 is classified as

Answer 39

A compound and molecule

Question 40

Which element is most elector negative

Answer 40

F

Question 41

Dogs are classified as eukaryotes

Answer 41

True

Question 42

First evidence of microbial life

Answer 42

Stromatolites