Bio of organisms- Lab 2

Question 0

Later evolved and photosynthesized adding a lot of oxygen to the earth

Answer 0

Later prokaryotes

Question 1

Unicellular and did not photosynthesize

Answer 1

Early prokaryotes

Question 2

Domains of prokaryotes

Answer 2

Arches and bacteria

Question 3

A larger more complex kind of organism or eukaryote appeared when two prokaryotes united

Answer 3

Endosymbiotic origin

Question 4

The — and — are more closely related

Answer 4

Archaea and eukarya

Question 5

Bacteria have 3 shapes. Name them.

Answer 5

Spherical (coccus)
Spiral (spirillum)
Rod-shaped (bacillus)

Question 6

Bacteria move by —-

Answer 6

Flagella

Question 7

Flagellum of — is a naked protein that lacks microtubules

Answer 7

Bacteria

Question 8

The flagella of — microtubules

Answer 8

Eukaryotes

Question 9

Instead of cellulose found in cell walls of plants, the polymer — provides rigidity to the cell walls of bacteria.

Answer 9

Peptidoglycan

Question 10

Stained purple, shows bacteria have a simple cell

Answer 10

Gram-positive

Question 11

Stained pink or red, shows cell wall of bacteria is complex

Answer 11

Gram-negative

Question 12

Ethyl alcohol de-stains — bacteria

Answer 12

Gram-negative

Question 13

Photosynthetic organisms that use sunlight to transform CO2 into organic molecules

Answer 13

Photoautotrophs

Question 14

Oxidize inorganic substances to obtain energy necessary for transforming CO2 into organic molecules

Answer 14

Chemoautotrophs

Question 15

Use sunlight to transform organic molecules that they scavenge from the environment instead of CO2

Answer 15

Photoheterotrophs

Question 16

Consume organic molecules for both energy and carbon, and the source of organic compounds utilized for nutrition is extremely diverse

Answer 16

Chemoheterotrophs

Question 17

When plastics cannot be digested by chemoheterotrophs

Answer 17

Nonbiodegrabable

Question 18

Blue- green algae

Answer 18

Cyanobacteria

Question 19

Photosynthetic prokaryote containing pigments known as phycobilins

Answer 19

Cyanobacteria

Question 20

Nitrogen fixation occurs in specialized cells called —

Answer 20

Heterocysts

Question 21

In addition to heterocysts, Cyanobacteria also form enlarged cells calle — that are resistant to drying and act as spores

Answer 21

Akinetes

Question 22

Chloroplasts of eukaryotic cells were derived from the —-

Answer 22

Cyanobacteria