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Life Science Flashcards

1
Q

What is the study of life?

A

biology

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2
Q

What is the term used to help you remember all of the
characteristics of life?

A

Dr. R Cog

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3
Q

How many characteristics of life are there?

A

There are 6 characteristics of life.

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4
Q

What are the 6 characteristics of life?

A

DNA, Reproduction, Responds to Environment, Cells, Obtains energy, Grows and develops.

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5
Q

What does DNA do?

A

Determines the traits of all living

organisms

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6
Q

What are the 2 main cell categories?

A

Prokaryotic and Eukaryotic.

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7
Q

Where is DNA stored?

A

The cells.

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8
Q

Where does DNA come from?

A

DNA is inherited from an organism’s

parent(s).

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9
Q

What does “prokaryotic” mean?

A

“Before” nucleus

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10
Q

What does eukaryotic mean?

A

“True” nucleus

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11
Q

Prokaryotic cells have a nucleus. True or False

A

false

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12
Q

Prokaryotic cells

A

DNA floats in the cytoplasm of this type

of cell.

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13
Q

Eukaryotic cellsAr

A

DNA is housed in the nucleus of this

type of cell.

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14
Q

What are examples of organisms that are made up of
prokaryotic cells?

A

Eubacteria, Archaebacteria, Salmonella, and Streptococcus.

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15
Q

What are 2 types of cells are both eukaryotic cells?

A

Plant cells and animal cells.

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16
Q

Prokaryotic cells are the most complex cells. True or False

A

false

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17
Q

Eukaryotic cells evolved from prokaryotic cells. True or False

A

true

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18
Q

Which category of cells makes up unicellular organisms
((Prokaryote, Eukaryote, or both)?

A

Prokaryote

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19
Q

The process of which organisms give birth to offspring.

A

Reproduction

20
Q

What are the two categories of reproducers?

A

Sexual and asexual reproducers.

21
Q

Which type of reproducer is made up of only one parent?

A

Asexual reproducers.

22
Q

Offspring from which type of reproducer develops from the
combination of receiving 50% chromosomes from a female
parent and 50% chromosomes from a male parent?

A

Sexual reproducers.

23
Q

Which type of reproduction requires 2 parents from each
gender (1 male, 1 female) to create offspring?

A

Sexual reproducers.

24
Q

How does offspring develop from asexual reproductions?

A

The offspring’s DNA has to be identical to the parent’s.

25
What are cells?
The building blocks of all living things.
26
What are the 3 rules of Cell Theory?
All living things are made up of one or more cells. All cells come from other cells. Cells are the most basic building blocks of life.
27
What does autotrophic mean?
it means the organism makes it's own food from sunlight.
28
What does hetrotrope mean?
Any organism that consumes other organisms for food in order to create energy for the body.
29
Define the characteristic: Obtains energy
metabolism
30
2 ways different organisms can obtain energy
Autotrophism and heterotrophism
31
Plants are heterotrophic. True or False
true
32
What type of organisms are heterotrophic?
Cows, lions, and sharks.
33
Define biotic
living organism
34
Define abiotic
non-living organism
35
Define growth
The increase of size and mass of an organism.
36
Define development
Involves transformation of an organism as it goes through the growth process
37
The ability for any organism to respond to internal or external stimulus.
38
The internal balance of an organism.
39
Define adaptations
How living things adapt to and survive in their enviroment.
40
The classroom thermostat is broken and the room is very hot and stuffy. How will your body internally respond to this external stimulus?
Your body starts to get sweaty and your nervous system sends signals to your brain telling you it's hot.
41
Your day has been busy and you forgot to have breakfast and then missed lunch. How will your body internally alert you that it requires nourishment (food)?
Your stomach starts to make some strange noises and telling your brain you're hungry and need to eat.
42
What are membrane-bound organelles?
Cellular structures in an organism bounded by a biological membrane.
43
Which category of cells does not contain membrane-bound organelles?
Prokaryotic cells.
44
All categories of cells contain DNA. True or False
true
45
Which category of cells can create unicellular and multicellular organisms?
Eukaryotic cells.
46
What is the formula for total magnification when looking through a microscope?
Multiply the power of the ocular lens by the power of the objective being used.
47
What is the total magnification if the ocular lens is 10x and the objective being used in 40x?
400x

Science (3 decks)

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