Chapter 1, Section 3 Flashcards
How are organisms placed into domains?
3 reasons
Cell type
Their ability to make food
Number of cells in their bodies
What are the three domains?
Bacteria
Archaea
Eukarya
What are prokaryotes? Give an example.
Prokaryotes are organisms that lack a nucleus.
Bacteria
What is a nucleus?
A nucleus is a dense area in a cell that contains nucleic acids.
What do nucleic acids do?
They are chemical instructions that direct the cell’s activities.
True or false
Some bacteria are autotrophs, while others are heterotrophs.
True
Besides bacteria, what is another example of unicellular prokaryotes?
Archaea
How are bacteria and archaea different?
They are different in the structure and chemical makeup of their cells.
What are organisms in the Eukarya domain called?
Eukaryotes
What are eukaryotes?
Organisms with cells that contain nuclei
What are the four kingdoms of domain Eukarya?
Protists
Fungi
Plants
Animals
Protists cannot be classified as an animal, plant or fungus, so it is sometimes called what?
The odds and ends kingdom.
Can Protists be autotrophs? Heterotrophs? Unicellular? Multicellular?
All
True or false
Most fungi are multicellular, but a few are unicellular.
True
Are all fungi autotrophs or heterotrophs?
Heterotrophs
What do fungi feed on?
Fungi feed by absorbing nutrients from dead or decaying organisms.
True or false
Fungi are found everywhere on land but not in water.
False, a few live in freshwater.
What are 3 examples of fungi?
Mushrooms
Mold
Mildew
What are 3 examples of plants?
Dandelions
Moss
Peas
Are plants multicellular or unicellular? And where do most live?
All plants are multicellular and most live on land.
Are plants autotrophs or heterotrophs?
Autotrophs
True or false
Plants do not provide food to the heterotrophs on land.
False
Are all animals heterotrophs? Y or N
Are all animals multicellular? Y or N
Yes, yes
Where can archaea be found?
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.
Which two kingdoms consist only of heterotrophs?
Animals and fungi
