Bacteria Structure Test Flashcards 1
To study for the Bacteria Structure Test
What does macro mean?
Large
What does phage mean?
Eaters
What does unicellular mean?
Consisting and living off of one cell.
What does multicellular mean?
Consisting and living off of more than one cell.
Unicellular organisms have…
Everything they need to be self-sufficient.
In multicellular organisms, specialization…
Increases until some cells only do certain things.
How are cells created?
When the egg and the sperm combine.
Cells at the start of development are very…
General.
Cells start to specialize when…
They develop and reproduce more and more.
Living things have different…
Levels of organization.
Some levels of organization consist of…
Molecular and unicellular organization.
Living things must be able to organize…
Simple substances into complex ones.
Living things organize cells into…
Tissues, organs, organ systems, and organisms.
What is a function?
A role of a cell in a certain organism.
What is a tissue?
A group of cells that perform a certain function.
What is an organ?
A group of tissues that perform a certain function.
What is an organ system?
A group of organs that perform a certain function.
What is an organism?
Any complete living thing.
Living things take in (1?) and use it for (2?)
- Energy
- Maintenance and growth.
What is a stimulus?
A event that causes a cellular or functional reaction.
Living things will make changes in response to a…
Stimulus in their environment.
What is a behavior?
A complex set of responses.
What is cell division?
The orderly formation of new cells.
What is cell enlargement?
The increase in size of a cell.
Cells grow to a certain size and then…
Divide.
An organism gets larger as…
The number of its cells get larger.
Reproduction is not…
Essential for survival.
Reproduction must happen for…
A species to survive.
All living things reproduce either…
Asexually or sexually.
What is a gamete?
A reproductive cell of a animal or plant
What is offspring production?
A production with the organism looking very similar to the parent(s).
What is asexual reproduction?
Producing offspring without the use of gametes.
What is sexual reproduction?
Producing offspring by the joining of sex cells.
What are adaptations?
Traits that give an organism an advantage in a certain environment.
Variation of individuals is…
Important for a healthy species.
How many characteristics of life are there?
7.
What are the 7 characteristics of life?
Living things are composed of cells, living things have different levels of organization, living things use energy, living things respond to their environment, living things grow, living things reproduce, and living things adapt to their environment.
Cells use the same types of molecules to…
Carry out the same type of functions.
In asexual reproduction, each resulting cell has the exact same…
Genetic information (DNA and RNA)
In sexual reproduction, each resulting cell has…
Half the genetic information from each of the sex cells to make a unique combination.
Cells change to reach…
Maturity.
For some cells, life might include…
Making new cells and different functions (differentiation).
What are autotrophs?
Organisms that create energy from their environment.
What are heterotrophs?
Organisms that get energy by consuming nutrients from other living things.
What is homeostasis?
The process of an organism maintaining a stable internal environment.
Traits that help with survival are more likely to be passed on to (1) causing (2).
- The next generation.
- change over time.
