Charlie Kirkham
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Biology 1080 final practice quiz.

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Charlie Kirkham
Created by Charlie Kirkham about 6 years ago
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Biology 1080

Question 1 of 13

1

The lowest level of biological organization considered alive is the

Select one of the following:

  • cell

  • macromolecule

  • atom

  • proton

Explanation

Question 2 of 13

1

In general, the job of a buffer is to

Select one of the following:

  • make a solution less basic

  • maintain pH homeostasis

  • disrupt pH homeostasis

  • make a solution less acidic

Explanation

Question 3 of 13

1

pH describes the concentration of

Select one of the following:

  • Hydrogen ions (H+)

  • Water molecules relative to ions

  • Hydrogen gas (H2)

  • Hydroxide ions (OH-)

Explanation

Question 4 of 13

1

Water molecules form hydrogen bonds and "stick to each other because

Select one of the following:

  • the hydrogen atoms carry partial positive charges.

  • the oxygen atom carries a partial negative charge.

  • it is highly polar.

  • all of the above

Explanation

Question 5 of 13

1

Each atom of a given element always has the same number of

Select one of the following:

  • protons

  • neutrons

  • isotopes

  • electrons

  • ions

Explanation

Question 6 of 13

1

How is evolution different from the other characteristics of life?

Select one of the following:

  • It takes a long time

  • It operates differently for different species

  • It occurs in populations, not individuals

  • It only occurs in multicellular organisms

Explanation

Question 7 of 13

1

The bond between monomers in lipids is the

Select one of the following:

  • Glycosidic linkage

  • Peptide bond

  • Phosphodiester bond

  • Ester bond

Explanation

Question 8 of 13

1

How is carbohydrate use similar or different between plants and animals? Select the true statement below.

Select one of the following:

  • In animals, carbohydrates only have a structural role, while in plants, carbohydrates are used to store energy

  • Carbohydrates only have a structural role in both plants and animals

  • Carbohydrates play a structural role and an energy role in both plants and animals.

  • In animals carbohydrates only function in energy story, while in plants, carbohydrates only have a structural role,

Explanation

Question 9 of 13

1

How do phospholipids interact with water molecules?

Select one of the following:

  • The polar heads avoid water; non-polar tails attract water

  • The polar heads interact with water; the non-polar tails do not.

  • Phospholipids don't interact with water because water is polar and lipids are non-polar.

  • Phospholipids dissolve in water.

Explanation

Question 10 of 13

1

The ɑ-helix and ꞵ pleated sheet are examples of which type of protein structure?

Select one of the following:

  • Primary

  • Secondary

  • Tertiary

  • Quaternary

Explanation

Question 11 of 13

1

Reactions that use a water molecule to break a large molecule into smaller subunits are called reactions.

Select one of the following:

  • Condensation

  • Hydration

  • Hydrolysis

  • Dehydration synthesis

Explanation

Question 12 of 13

1

Which type of structure would result in a functional protein?

Select one of the following:

  • Primary

  • Secondary

  • Tertiary

  • Denatured

Explanation

Question 13 of 13

1

The monomer of carbohydrates is the

Select one of the following:

  • Monosaccharide

  • Amino Acid

  • Fatty Acid

  • Nucleotide

Explanation

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