Intro To Bio Flashcards

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1
Q

Characteristics of living organisms

A

1 contain biological molecules 2. Cellular

  1. Reproduce
  2. Acquire and use energy
  3. Respond to environment
  4. Maintain homeostasis
  5. Populations of living organisms evolve and have adaptive traits
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2
Q

What are examples of biological molecules?

A
  1. Proteins
  2. Nucleic acids
  3. Carbohydrates
  4. Lipids
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3
Q

Cells are ________

A

The smallest unit of life

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4
Q

Definition of unicellular

A

Composed of only one cell

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5
Q

Definition of multicellular

A

Composed of many cells

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6
Q

How do one celled organisms reproduce?

A

Reproduce asexually by dividing in half producing two cells

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7
Q

Definition of metabolism

A

All chemical reactions that occur within the cells of living things

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8
Q

Definition of homeostasis

A

Relatively constant and self correcting internal environment of living organisms

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9
Q

What are adaptive traits

A

Traits that help you survive and reproduce

Members of the population that have adaptove traits survive better than members that lack those traits

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10
Q
Which of the following is not necessarily a characteristic of life?
A. Respond to enviornment changes
B. Cellular
C. Multicellular
D. Reproduction
A

C. Multicellular

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11
Q

What are the three domains?

A

Eukarya, bacteria, archaea

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12
Q

Which of the three domains lacks a nucleus?

A

Bacteria and Archaea

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13
Q

What is the difference between domain bacteria and archaea?

A

Archaea live in extreme environments

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14
Q

Prokaryotic means

A

It is single celled and lacks a nucleus

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15
Q

How many kingdoms is domain eukarya divided into?

A
  1. Protista (protists- one celled organisms with a nucleus)
  2. Fungi- (mushrooms and molds)
  3. Plantae- plants
  4. Animalia- animals
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16
Q

Function

A

The normal physiological activity of an organ or part. This is the job of the part of the body

17
Q

Produce

A

To produce is to make something

18
Q

Synthesize

A

To build something by putting smaller things together

19
Q

Lack

A

Does not have or does not contain

20
Q

Inhibit

A

To decrease, limit, or block the action or function of

21
Q

Stimulate

A

To increase the actvity of a body organ or part

22
Q

Dilate

A

To make wider or larger

23
Q

Constrict

A

To make smaller or narrower by binding or squeezing

24
Q
What domain do humans belong in?
A. Eukarya
B. Bacteria
C. Archaea
D. Animal
E. Plant
F. Protist
A

A. Eukarya

25
Q
Which of the following types of organisms are composed of prokaryotic cells?
A. Animals
B. Bacteria
C. Fungi
D. Plants
E. Protists
A

B

26
Q

Which domain do
Humans Belong To?

A. Eukaryotic
B. Archea
C. Eukarya
D. Prokaryotic
E. Bacteria
F. Animal
A

Eukarya