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Bio Exam 1 > Exam 1 > Flashcards

Exam 1 Flashcards

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Biology 101 flashcards
1
Q

List the characteristics of living organisms

A

Order, response to stimuli, reproduction, adaptation, growth & development, homeostasis, metabolism

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2
Q

What has some characteristics of living organisms?

A

Virus: no homeostasis, don’t respond to stimuli, no growth

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3
Q

What is evolution

A

A change in organisms over generations

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4
Q

What category in the tree of life, do most living things fall under?

A

Eukaryotic

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5
Q

What category has more living things?

A

Bacteria

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6
Q

Which has more complexity?

A

This is based on the bio. Hierarchies of organization. The higher on the hierarchy, the more complexity

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7
Q

Fact

A

Simple observation known to be true

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8
Q

Hypothesis

A

Possible, testable explanation

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9
Q

Law

A

Statement of what ALWAYS occurs about a natural phenomenon

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10
Q

Theory

A

Explanation of natural occurrence that has undergone rigorous scientific testing and has not been shown to be untrue

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11
Q

Theory vs Law

A

Scientific theories don’t graduate into laws
Theory is the why, law is the description of what occurs

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12
Q

Basic research vs Applied research
Purpose

A

Basic: understand the universe and make predictions

Applied: solves specific real world problems

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13
Q

Basic research vs Applied research
Nature

A

Theoretical vs practical

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14
Q

Basic research vs Applied research
Economics

A

No economic pursuits vs commercially driven

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15
Q

Basic research vs Applied research
Goal

A

Understand the universe vs development of technology and solutions

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16
Q

Electrons orbit the nucleus and interact with electrons from other atoms to form what

A

Chemical bonds

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17
Q

Atomic number is the # of

A

Protons as well as the electrons if it is neutral

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18
Q

Atomic mass is the # of

A

Protons and neutrons

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19
Q

What has a different number of protons and electrons, has electrical charge

A

Ion

20
Q

How many electrons does B -1 have? Atomic number is 5

A

6 electrons. 5e + 1e

21
Q

How many neutrons does the isotope Boron -12 have?

A

7 neutrons. I’d the atomic number is 12, and there are 5 protons.

22
Q

Multiple atoms bonded together

A

Molecule

H2

23
Q

Multiple atoms of different elements bonded together

A

Compound
CO2

24
Q

Ionic bond

A

Gain/loss electron of metal and a non metal

25
Q

Covalent bond

A

Electron sharing between non metals. Polar and non polar. Stronger than H bonds

26
Q

Humans are made up of how much water

A

60%

27
Q

Is water polar or non polar

A

Polar

28
Q

Extensive hydrogen bonding means water can absorb a lot of heat before changing state making excellent for cooling and metabolic reactions

A

Thermal property

29
Q

Di polarity means water will stick to other water molecules resulting in high water tension

A

Cohesive

30
Q

Dipolarity means water will stick to charged or polar surfaces resulting in water to move via capillary action

A

Adhesive

31
Q

Water can dissolve polar or charred molecules making it a good transport medium

A

Solvent

32
Q

Less dense as a solid than a liquid

A

Density

33
Q

Water is transparent to visible spectrum making it useful for photosynthesis

A

Transparency

34
Q

Interacts and bonds with water polar or charged

A

Hydrophilic

35
Q

How does water stabilize temperature

A

More water in an environment means the less temps fluctuate because water heats up slower than earth

36
Q

Which of the three is the weakest of chemical bonds (ionic, covalent, hydrogen)?

A

Hydrogen

37
Q

What is the difference between polar and nonpolar covalent bonds?

A

Polar covalent bonds: one side is pulling more due to unequal electron sharing

Non polar covalent: equal pull due to equal electron sharing

38
Q

Put the following in order from most dense to least dense (ice, liquid water, water vapor).

A

Liquid water, ice, water vapor

39
Q

What are the 4 classes of bio molecules

A

Carbs (monosaccharides), nucleic acids (nucleotides), proteins (amino acids), lipids (glycerol and fatty acids)

40
Q

Small subunit molecules that build polymers

A

Monomers

41
Q

What are the monomers and polymers for carbohydrates

A

Monosaccharides and polysaccharides

42
Q

What is a monomer and polymer for nucleic acids

A

Nucleotide and dna

43
Q

What is a monomer and polymer for proteins

A

Amino acid and polypeptides

44
Q

What is a monomer and polymer for lipids

A

Fatty acid and triglyceride

45
Q

Glucose, fructose and galactose are common

A

Monosaccharides

46
Q

Sucrose, maltose, and lactose are common

A

Dissaccharides

47
Q

Starch, glycogen, cellulose, and chitin are common

A

Polysaccharides

Bio Exam 1 (1 decks)

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