Biology 1 Chapter 1 (Lecture) Flashcards

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0
Q

Emergent

A

Properties that are not present in the preceding level of biological organization, but are now present.

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1
Q

Biology

A

Scientific study of life.

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2
Q

Reductionism

A

Reducing complex systems to simpler components that are more manageable to study

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4
Q

Levels of Biological Organization (smallest to largest)

A

1) Atoms
2) Molecules
3) Organelles
4) Cells
5) Tissues
6) Organs
7) Organ Systems
8) Organisms
9) Population
10) Community
11) Ecosystem
12) Biosphere

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5
Q

Atoms

A

Smallest chemical units

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6
Q

Molecule

A

Chemical structure consisting of 2 or more atoms

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7
Q

Organelles

A

Various functional components that make up cells. These are made up of molecules. (EX: Chloroplasts)

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8
Q

Cells

A

Fundamental unit of structure and function. It might take more than 700 cells to reach across a penny.

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9
Q

Tissues

A

Cells organized into groups because they have similar functions.

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10
Q

Organs

A

Tissues grouped together and organized.

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11
Q

Organ Systems

A

Organized organs

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12
Q

Organisms

A

Individual living things (includes plants, animals, bacteria, etc.)

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13
Q

Population

A

Consists of all the individuals of a species living within a certain area.

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14
Q

Community

A

Combination of different populations that are in a particular area.

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15
Q

Ecosystem

A

Combination of the nonliving things in an area with the communities

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16
Q

Biosphere

A

All the earth’s ecosystems combined.

17
Q

Organisms interact with

A

Their environment, exchanging matter and energy

18
Q

Structure and Function

A

Correlated at all levels

19
Q

Cells are an organism’s

A

Basic unit of structure and function.

20
Q

Every cell is enclosed by

A

A membrane that regulates things in and out of cells.

21
Q

All cells have

A

cytoplasm

22
Q

DNA

A

A cell’s genetic info. (deoxyribonucleic acid)

central database

23
Q

2 main forms of cells

A

Prokaryotic and Eukaryotic

24
Q

Prokaryotic

A
Smaller
No nuclear membrane (No nucleus)
No membrane bound organelles
Kinds: Bacteria & Archea
Does have ribosomes
25
Q

Eukaryotic

A
Larger
Has a nuclear membrane (has a nucleus)
Has membrane bound organelles
Kinds: Plants, animals, fungi, & protist
Does have ribosomes
26
Q

Genes

A

the units of inheritance that transmit information from parents to offspring

27
Q

Two long chains of DNA are arranged in

A

a Double Helix

28
Q

Each chain link of DNA has one of four kinds of

A

Chemical building blocks (A, G, C, & T)

29
Q

Genome

A

The entire “library” of genetic instructions that an organism inherits.

30
Q

Mechanisms that regulate biological systems

A

Feedback (Positive & Negative)

31
Q

3 Domains (Broadest units of classifications) of Life

A

1) Archaea (prokaryotic)
2) Bacteria (prokaryotic)
3) Eukarya (Eukaryotic)

32
Q

Kingdoms (of Eukarya)

A

1) Protista
2) Plantae
3) Fungi
4) Anamalia

33
Q

Hypothesis

A

Tentative answer to a well-framed question – an explanation on trial

34
Q

Theory

A

Much broader in scope than a hypothesis

35
Q

Writing Genus and species

A

Genus specie

EX: Streptococcus pygenes, Homo sapiens

36
Q
Darn
King
Phillip
Came
Over
From
Germany
Saturday
A
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species