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A level Biology: Biological Molecules > 8.08.2016 - first lesson > Flashcards

8.08.2016 - first lesson Flashcards

1
Q

What is an atom?

A

The smallest part of an element that can take part in chemical reactions

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2
Q

What is an element?

A

A substance that consists of only atoms with the same atomic number

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3
Q

What is a compound?

A

A substance made up of two or more different elements chemically combined

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4
Q

What is a molecule?

A

Particle made up of two or more atoms chemically bonded together

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5
Q

What elements are carbohydrates made of?

A

Carbon
Hydrogen
Oxygen

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6
Q

What elements are lipids made of?

A

Carbon
Hydrogen
Oxygen

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7
Q

What elements are proteins made up of?

A 
Carbon
Hydrogen
Oxygen
Nitrogen
Sulfur
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8
Q

What elements are nucleic acids made up of?

A 
Carbon
Hydrogen
Oxygen
Nitrogen
Phosphorus
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9
Q

What is an anion?

A

A negatively charged ion

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10
Q

What is a cation?

A

A positively charged ion

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11
Q

What is an anode?

A

A positively charged electrode

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12
Q

What is a cathode?

A

A negatively charged electrode

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13
Q

What is an ion?

A

An atom or molecule in which the total number of electrons is not equal to the total number of protons

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14
Q

What is an ionic bond?

A

A bond formed as a result of opposite charges

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15
Q

What ions are used in biological processes?

A

Na^+ for nerve impulse transmission
Ca^2+ for nerve impulse transmission
HCO3^- maintenance of blood pH

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16
Q

What is a monomer?

A

Individual molecules that make up a polymer

17
Q

What is a polymer?

A

A chain made up monomer molecules

18
Q

What is the monomer and polymer of the following; Carbohydrates, Proteins, Nucleic acids

A

Carbohydrates
Monomer - simple sugars (monosaccharides) glucose
Polymer - starch (polysaccharides)

Proteins
Monomer - amino acids e.g Arginine
Polymer - Enzymes or polypeptide proteins

Nucleic acids
Monomer - nucleotides e.g. A, G, C, T
Polymer - DNA, RNA

19
Q

What do the bases A, C, G, T stand for?

A

Adenine
Cytosine
Guanine
Thymine

A level Biology: Biological Molecules (1 decks)

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