Chapter 1, Section 3

Question 1

How are organisms placed into domains?

3 reasons

Answer 1

Cell type
Their ability to make food
Number of cells in their bodies

Question 2

What are the three domains?

Answer 2

Bacteria
Archaea
Eukarya

Question 3

What are prokaryotes? Give an example.

Answer 3

Prokaryotes are organisms that lack a nucleus.

Bacteria

Question 4

What is a nucleus?

Answer 4

A nucleus is a dense area in a cell that contains nucleic acids.

Question 5

What do nucleic acids do?

Answer 5

They are chemical instructions that direct the cell’s activities.

Question 6

True or false

Some bacteria are autotrophs, while others are heterotrophs.

Answer 6

True

Question 7

Besides bacteria, what is another example of unicellular prokaryotes?

Answer 7

Archaea

Question 8

How are bacteria and archaea different?

Answer 8

They are different in the structure and chemical makeup of their cells.

Question 9

What are organisms in the Eukarya domain called?

Answer 9

Eukaryotes

Question 10

What are eukaryotes?

Answer 10

Organisms with cells that contain nuclei

Question 11

What are the four kingdoms of domain Eukarya?

Answer 11

Protists
Fungi
Plants
Animals

Question 12

Protists cannot be classified as an animal, plant or fungus, so it is sometimes called what?

Answer 12

The odds and ends kingdom.

Question 13

Can Protists be autotrophs? Heterotrophs? Unicellular? Multicellular?

Answer 13

All

Question 14

True or false

Most fungi are multicellular, but a few are unicellular.

Answer 14

True

Question 15

Are all fungi autotrophs or heterotrophs?

Answer 15

Heterotrophs

Question 16

What do fungi feed on?

Answer 16

Fungi feed by absorbing nutrients from dead or decaying organisms.

Question 17

True or false

Fungi are found everywhere on land but not in water.

Answer 17

False, a few live in freshwater.

Question 18

What are 3 examples of fungi?

Answer 18

Mushrooms
Mold
Mildew

Question 19

What are 3 examples of plants?

Answer 19

Dandelions
Moss
Peas

Question 20

Are plants multicellular or unicellular? And where do most live?

Answer 20

All plants are multicellular and most live on land.

Question 21

Are plants autotrophs or heterotrophs?

Answer 21

Autotrophs

Question 22

True or false

Plants do not provide food to the heterotrophs on land.

Answer 22

False

Question 23

Are all animals heterotrophs? Y or N

Are all animals multicellular? Y or N

Answer 23

Yes, yes

Question 24

Where can archaea be found?

Answer 24

Archaea can be found in some of the most extreme environments on Earth, including hot springs, very salty water, swamps, and the intestines of cows.

Question 25

Which two kingdoms consist only of heterotrophs?

Answer 25

Animals and fungi