Chapter 1- The Science Of Biology Flashcards

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1
Q

What does Bio mean

What does Olgy mean

A

Life

The study of

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2
Q

What is a hypothesis

A

An educated guess that might be true. It must be testable

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3
Q

A null hypothesis

A

A statement that if true would disprove your original hypothesis. Every good hypothesis must have a null hypothesis attached

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4
Q

Theory

A

A hypothesis that has been validated or tested

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5
Q

Scientific law

A

A theory that continues to be true over many years

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6
Q

Ideology

A

A set of beliefs or standards that shade how a person thinks

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7
Q

Redi’s experiment

A

He came up with a hypothesis that maggots on meat came from flies. He tested it by covering some meat and leaving another piece uncovered. The uncovered piece got maggots and the covered piece didn’t. Therefore his hypothesis was true

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8
Q

Louis Pasteur

A

Father of microbiology

The first to really understand microbiology

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9
Q

Who was pasteurization named after and explain it

A

Louis Pasteur
Farmers collect contaminated milk Bc there is feces on utters. To fix this they take the milk to a dairy and put it in a tank. They heat the tank so the milk almost boils and then they let it cool. The heat kills 95% of bacteria. So now the milk lasts longer.

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10
Q

What experiment led to pasteurization

A

It was pastures and it was when he figured out that if he heated broth to kill bacteria and let it sit nothing would grow if he used a container with a special neck that stopped dust from entering. Dust has bacteria not air alone. His work greatly extended the life of humans

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11
Q

Requirements for all living things

A

Made up of cells, reproduce, are all based on a universal generic code (DNA), grow and develop, obtain and use materials/energy, respond to environment, maintain a stable internal environment, and change over time

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12
Q

DNA

A

Controls much of your personality

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13
Q

Homeostasis

A

Homeo=same
Stasis=not changing
Your body must maintain this

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14
Q

What is the shape of veins in leaves called

A

Venation

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15
Q

What are the three types of venation

A

Parallel, branched, and midrib

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16
Q

Levels of organization

A

Molecules-cells-groups of cells-organism-population-community-ecosystem-biosphere

17
Q

4 types of tissue in the human body

A

Nervous
Connective
Epithelial
Muscular

18
Q

Normal body temp in celsius

A

37

19
Q

Microscopes two main types

A

Compound and electron

20
Q

Compound microscopes

A

Highest magnification is 1000xs

21
Q

Electron microscopes

A

Can look at things smaller than 1000xs

22
Q

Two types of electron microscopes

A

TEM AND SEM
transmission electron microscopes
Scanning electron microscopes

23
Q

The disadvantage to electron microscopes

A

In order to see what’s under the microscope you must kill it you can’t view anything unless it’s dead