bio 145 quiz 1 (ch 1-3)

Question 0

Leeuwenhoek’s microbes are now grouped into six types of organisms studied by microbiologists. These categories are ____
A) bacteria, archaea, fungi, Protozoa, algae, and parasitic worms
B) viruses, fungi, Protozoa, algae, bacteria, parasitic worms
C) kingdom, phylum, class, order, family, species
D) Animalia, Plantae, fungi, Protista, Prokaryota

Answer 0

A) Bacteria, archaea, fungi, Protozoa, algae, and parasitic worm

Question 1

The invention of the microscope by \_\_\_\_ and his description of \_\_\_\_ led to the development of the field of science called microbiology
A) Pasteur, "life force"
B) Leeuwenhoek, animalcules
C) Einstein, relativity
D) Ehrlich, "magic bullets"

Answer 1

B) Leeuwenhoek, animalcules

Question 2

Which of the following microorganisms are not eukaryotic
A) bacteria
B) Yeasts
C) molds
D) Protozoa

Answer 2

A) bacteria

Question 3

Viruses were NOT described by Leeuwenhoek because they were too \_\_\_\_ to be seen with a light microscope, but now can be seen by an \_\_\_\_\_
A) fast, laser
B) big, telescope
C) small, electron microscope
D) pathogenic, UV light

Answer 3

C) small, electron microscope

Question 4

This scientist was responsible for developing four postulates for discovering the cause of infectious disease
A) Joseph Lister
B) Florence Nightingale
C) John Snow
D) Robert Koch

Answer 4

D) Robert Koch

Question 5

This scientist used special flasks to disprove spontaneous generation and also discovered yeast were responsible for fermentation of grape juice to alcohol
A) Eduard Buchner
B) Francesco Redi
C) Louis Pasteur
D) Aristotle

Answer 5

C) Louis Pasteur

Question 6

A molecule that contains atoms of more than one element bonded together is 
A) a compound 
B) an isotope
C) an electron
D) a valence

Answer 6

A) a compound

Question 7

A \_\_\_\_\_ bond is a bond formed by sharing electrons, it can be polar or Nonpolar.
A) ionic
B) hydrogen
C) James
D) covalent

Answer 7

D) covalent

Question 8

Substances that prevent drastic changes in pH are \_\_\_\_
A) exothermic
B) buffers
C) matter
D) amino acids

Answer 8

B) buffers

Question 9

Beneficial properties of water include
A) cohesive molecule
B) excellent solvent
C) can absorb large amounts of energy
D) all of the above

Answer 9

D) all of the above

Question 10

Organic macromolecules important in living things fit into four major categories. These categories are:
A) lipids, carbohydrates, proteins, and nucleic acids
B) acid, base, salt, water
C) isotope, electron, ion, proton
D) saturated, unsaturated, polyunsaturated, and waxes

Answer 10

A) lipids, carbohydrates, proteins, and nucleic acids

Question 11

Some bacteria form \_\_\_\_, which are dormant, resistant cells, containing dipicolinic acid and can be dangerous food contaminates
A) gram positive archaeal walls
B) cytoplasmic membranes
C) endospores
D) Golgi bodies

Answer 11

C) endospores

Question 12

Prokaryotes differ from eukaryotes because they
A) lack a nucleus
B) have a 70s ribosome
C) lack organelles surrounded by a phospholipid membrane
D) all of the above

Answer 12

D) all of the above

Question 13

Gram positive bacteria _____
A) have a thick cell wall, which retains crystal violet dye
B) contain techoic acids in their cell wall
C) do not have an outer membrane containing porins
D) all of the above

Answer 13

D) all of the above

Question 14

The four common features of living things include
A) growth, reproduction, responsiveness, and metabolism
B) organelles, cytoplasmic membrane, nucleus, and flagella
C) endocytosis, exocytosis, pinocytosis, and phagocytosis
D) none of the above

Answer 14

A) growth, reproduction, responsiveness, and metabolism

Question 15

Passive process of chemical moving across the cytoplasmic membrane is called \_\_\_\_\_, while the movement of water across the membrane is called osmosis.
A) fluid mosaic model
B) diffusion
C) glycocalyx
D) exocytosis

Answer 15

B) diffusion

Question 16

Active transport of two substances via carrier proteins can either be in the same direction at once, called \_\_\_\_ or in opposite directions \_\_\_\_\_.
A) phagocytosis, pinocytosis
B) group translocation, uniport
C) symport, antiport
D) hypertonic, hypotonic

Answer 16

C) symport, antiport

Question 17

A facultative anaerobe grows in the presence of
A) oxygen
B) no oxygen
C) oxygen or no oxygen
D) low concentrations of oxygen

Answer 17

C) oxygen or no oxygen