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Biology - Chapter 2 > Chapter 2 > Flashcards

Chapter 2 Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

What is matter ?

A

Anything that occupies space and has mass.

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2
Q

What is are the three parts of an atom?

A

Protons, neutrons, electrons

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3
Q

What is in the nucleus of an atom?

A

neutrons, protons, electrons

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4
Q

What is a molecule?

A

A group of atoms bonded together.

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5
Q

What is an atom?

A

The smallest unit of an element.

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6
Q

What is a chemical change?

A

Occurs when substance combines with another to form a new substance.

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7
Q

What is a physical change?

A

The process of altering the state of something, its appearance.

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8
Q

What is energy?

A

The ability to do work.

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9
Q

What is kinetic energy?

A

Energy an object has because of its motion.

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10
Q

What is potential energy?

A

Energy possessed by an object because of its position.

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11
Q

What is endothermic?

A

require or absorb heat

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12
Q

What is exothermic?

A

Give off heat

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13
Q

What are enzymes?

A

Organic catalysts

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14
Q

solute and solvent

A

solute (dissolved)

solvent (dissolver)

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15
Q

4 Organic compounds

A
  • Carbohydrates
  • Lipids
  • Proteins
  • Nucleic acid
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16
Q

What is Diffusion?

A

the net movement of molecules from an area of higher concentration of a substance

17
Q

What is osmosis?

A

Diffusion of water molecules through a semipermeable membrane

18
Q

The basic building blocks of a protein are ?

A

amino acids

19
Q

What is polypeptide

A

chain of amino acids.

20
Q

1st law of thermodynamics

A

Energy is neither created nor destroyed

21
Q

2nd las of thermodynamics

A

Whenever energy is used some of it is wasted

22
Q

DNA

A

Deoxyribonuclic acids

23
Q

RNA

A

Ribose nucleic acids

Biology - Chapter 2 (1 decks)

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