Chapter 15 (2)

Question 1

What were the earliest microbes found?

Answer 1

Prokaryotes

Question 2

Of the 4 stages in the origin of life, which of the following is the highest stage of development

Answer 2

Pre-cell

A)pre cell
B)abiotic monomers
C)abiotic polymers
D)self replicating molecules

Question 3

Features of prokaryotic cells

Answer 3

No nucleus
Most are unicellular
Some have endospores

Question 4

Branch of prokaryotes

Answer 4

Bacteria and archaea

Question 5

Where do you find archaea

Answer 5

In areas of extreme environments

Nasty areas

Question 6

Spherical shaped bacteria

Answer 6

Cocci

Question 7

Rod shaped bacteria

Answer 7

Bacilli

Question 8

Spiral shaped bacteria

Answer 8

Spirochete

Question 9

Exotoxins

Answer 9

Poisons secreted by a cell

Outside the cell

Question 10

Bioremediation are used

Answer 10

Treating raw sewage
Cleaning rocks and beaches
Cleaning toxic waste dumps

Question 11

Protists

Answer 11

The first eukaryotes to evolve from prokaryotes

Question 12

Bad bacteria

Answer 12

Anthrax, bubonic plague,salmonella, tuberculosis, botulism, and biological weapons

Question 13

Spontaneous generation

Answer 13

Life could come from non living matter

Question 14

Biogenesis

Answer 14

Life comes from life.

Question 15

4 stages hypotheses

Answer 15

Abiotic(non living) monomers
Abiotic synthesis of polymers
Self replicating molecules
Pre cells

Question 16

Abiotic(non living) monomers

Answer 16

Syntheses of organic monomers such as amino acids, nucleotides

Question 17

Abiotic synthesis of polymers

Answer 17

Monomers link together to produce polymers: proteins and nuclei acids

Question 18

Self replicating molecules

Answer 18

DNA and RNA, making inheritance possible

Question 19

Pre cells

Answer 19

Molecular packages within membranes, with some properties of life

Question 20

Photoautrophs

Answer 20

Photosynthetic (plants only)

Don’t need to eat anything to produce energy

Question 21

Photoheterotrophs

Answer 21

Use light to generate ATP, obtains carbon in organic form

We need to eat stuff to produce energy

Question 22

Endotoxins

Answer 22

Chemicals in cell wall of the bacteria (inside the cell)

Question 23

Bioremediation is

Answer 23

Organisms used to remove pollution from the water, air and the soil

Question 24

2 theories of protists

Answer 24

Inward folding of outer membrane
And
Endosymbiosis other living organisms make their way into the cell to help each other

Question 25

4 categories of protists are

Answer 25

Protozoans=amoebas
Slime Mold
Unicellular algae
Seaweed