Lecture 2

Question 1

Which of the following is not a characteristic of prokaryotic cells ?

Answer 1

A membrane enclosed nucleus

Question 2

Prokaryotic cells do not possess

Answer 2

An immune system

Question 3

The common ancestry of (monophyly) all life is confirmed by

Answer 3

Dna as the genetic material that codes for protein

Question 4

Most prokaryotes

Answer 4

None of the above ( r agents of diseas,lack ribosomes, evoked from the most ancient eukaryotes, lack a cell wall)

Question 5

Based on the figure which statement about endosymbiosis origin of eukaryotic mitochondria is true

Answer 5

Mitochondria are derived from endosymbiosis bacteria

Question 6

Which statement about hyperthemophilic bacteria is true

Answer 6

They live in conditions that may resemble those of earths early environments

Question 7

WOTF would be favored by acidophilus thermophiles?

Answer 7

Hot sulfur springs

Question 8

Match the name of the bacteria from the list below with the description that follows: these bacteria photosynthesis using chlorophyll a, produced the oxygen of earths early atmosphere and contain photosynthetic lamellae

Answer 8

Cyanobacteria

Question 9

Methanogenic euryarchaeotes are obligate anaerobes some of which live in the intestinal tracts of mammals and other animals . From this info one can conclude that the environment in the intestinal tracts

Answer 9

Is low in oxygen

Question 10

Medications and environment influences that destroy numerous microbes in the human body would

Answer 10

Likely be injurious to human health

Question 11

The ancestor of photosynthetic euglenids took up the chloroplast of green alga. This explains why photosynthetic euglenids

Answer 11

Have the same photosynthetic pigments as plants

Question 12

Refer to the figure which shows endosymbiosis events in the evolution of chloroplasts which statement concerning the events shown in part B of the figure is false

Answer 12

The engulfed cell was a prokaryote

Question 13

Alveolares typically

Answer 13

Possess sacs just beneath their plasma membranes

Question 14

Which group contains multicellular brown algae and giant kelps

Answer 14

Stramenophiles

Question 15

Which group can produce a toxin in marine environments that accumulated in Clams mussels and oysters and can cause paralytic shellfish poisoning

Answer 15

Dinoflagellates

Question 16

What are the organisms shown in the figure

Answer 16

Diatoms

Question 17

Which protist group includes species that are photosynthetic, multicellular, and many meters long

Answer 17

Stramenophiles

Question 18

Refer to the figure (plants) Which statement about the eukaryotes shown is false

Answer 18

They are members of animalia

Question 19

Wotf are protista that do not use photosynthesis

Answer 19

Slime molds

Question 20

If you were to examine limestone deposits throughout the world, which group of organisms would you expect to find in the greatest abundance

Answer 20

Foraminiferans

Question 21

Which group uses lobe-shaped pseudopods for locomotion

Answer 21

Amoebozoans

Question 22

Secretion of digestive enzymes to break down food molecules and then absorption of the breakdown products through the plasma membrane is termed

Answer 22

Absorptive heterotrophy

Question 23

Rhizoids which function to attach the fungus to a substrate are modified from WOTF?

Answer 23

Hyphae

Question 24

Pores in the surfaces of ______ allow cell organelle and cytoplasm to pass through.

Answer 24

Septa

Question 25

In the life cycle of a fungus the fruiting structure

Answer 25

Produces spores for reproduction

Question 26

In terrestrial ecosystems, a major role of saprobic fungi is to

Answer 26

Break down carbon compounds

Question 27

Fungi that break down a fallen tree are considered

Answer 27

Saprobic

Question 28

Black stem rust that draws nutrition from a wheat plant and damages the plant is considered

Answer 28

Parasitic

Question 29

Refer to the following figure which statement best describes the relationship between the nematode and the fungus shown

Answer 29

The fungus acts as a predator, trapping the nematode and invading it with hyphae to extract nutrients

Question 30

A lichen in which both partner organisms benefit is considered

Answer 30

Mutualistas

Question 31

The gills of a mushroom are specialized for

Answer 31

Reproduction

Question 32

_____ produce antibiotic chemicals that can be used to treat bacterial infections

Answer 32

Penicilium molds

Question 33

WOTF is used in the production of beer and wine ?

Answer 33

Yeasts