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Bio 6 > chap 2 quiz ?s > Flashcards

chap 2 quiz ?s Flashcards

1
Q

what are the properties of water?

A

water is an excellent solvent
water participates in chemical reactions
water absorbs and releases heat very slowly
water requires a large amount of heat to change from a liquid to a gas
water serves as a lubricant

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2
Q

Can donate protons to a solution

A

proton

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3
Q

Can donate protons to a solution

A

acid

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4
Q

pH lower than 7

A

acid

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5
Q

pH higher than 7

A

base

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6
Q

Solution with a high concentration of protons (hydrogen ions)

A

base

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7
Q

Solution with a high concentration of protons (hydrogen ions)

A

acid

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8
Q

The mass number of an atom is determined by:

A

adding the total number of protons and neutrons.

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9
Q

An abundant element found in water and most organic molecules is

A

hydrogen

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10
Q

The storage form of glucose in the liver is

A

glycogen

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11
Q

Match the chemical reaction with its description.

A molecule splitting apart

A

decomposition

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12
Q

Match the chemical reaction with its description.

Two molecules rearranging their atoms to form two new molecules

A

exchange reaction

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13
Q

The backbone of organic molecules is formed by

A

oxygen.
nitrogen.
magnesium.
carbon.
hydrogen. no

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14
Q

A chemical bond where electrons are taken from one atom and given to another is a(n)

A

ionic bond

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15
Q

For the statement below, identify whether it is true or false.
Carbohydrates are composed of carbon, hydrogen, and nitrogen.

A

false / oxygen not nitrogen

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16
Q

A molecule that dissociates in water and gives off hydrogen ions is a(n)

A

acid

17
Q

The backbone of organic molecules is formed by

A

oxygen.
nitrogen.
magnesium.
* ** carbon.
hydrogen. no

18
Q

Which of the following is NOT a base found in DNA

A

Uracil is not / Guanine, adenine, Cytosine, and Thymine are

19
Q

For the statement below, identify whether it is true or false. If false, identify the word that makes the statement incorrect. If the statement is true, select “Statement is true” from the second dropdown.
True or False: True

A

True or False: True

Incorrect Word: Statement is true.

20
Q

All of the following are organic compounds EXCEPT

A

lipids.
proteins.
water. is not
nucleic acids.
carbohydrates.

21
Q

All of the following are organic compounds EXCEPT

A

lipids.
proteins.
water. is not
nucleic acids.
carbohydrates.

22
Q

prevent rapid, drastic changes in the PH of a body fluid by converting strong acids and bases into weak acids and bases.

A

buffers

23
Q

prevent rapid, drastic changes in the PH of a body fluid by converting strong acids and bases into weak acids and bases.

A

buffers

24
Q

the sum of all chemical reactions in the body is called

A

metabolism

Bio 6 (18 decks)

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