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Biology > Bio Quiz 1 > Flashcards

Bio Quiz 1 Flashcards

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1
Q

Most enzymes are

proteins.
lipids.
carbohydrates.
compounds.
nucleic acids.
None of the listed answers are correct

A

Proteins

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2
Q

Water dissolves ionic compounds because water molecules

  None of the listed answers are correct 
  do not contain atoms. 
  are nonpolar. 
  have a pH value of 14 or greater. 
  have partially charged ends. 
  All of the listed answers are correct
A

have partially charged ends.

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3
Q

The factor that is varied in a controlled experiment is called the

  dependent variable. 
  control 
  independent variable. 
  hypothesis. 
  None of the listed answers are correct 
  control.
A

independent variable.

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4
Q

Structures present in plant cells but not present in animal cells include

  None of the listed answers are correct 
  ribosomes and ER. 
  All of the listed answers are correct 
  mitochondria and the cell wall. 
  lysosomes and the Golgi apparatus. 
  chloroplasts and the central vacuole.
A

chloroplasts and the central vacuole.

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5
Q

Which statement is false?

A prediction is the expected outcome of a test.
A solution with a low pH is more acidic than a solution with a high pH.
All the listed answers are true
Observations are an important part of the scientific process.
All the listed answers are false
A hypothesis can be proven with a well-designed experiment.

A

A hypothesis can be proven with a well-designed experiment

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6
Q

Most of a cell’s ATP is produced by

  the cytoskeleton. 
  flagella. 
  All of the listed answers are correct 
  None of the listed answers are correct 
  nucleus. 
  lysosomes.
A

None of the listed answers are correct

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7
Q

The maintenance of stable internal conditions in spite of changes in the external environment is called _________.

  ecology 
  genetics 
  evolution 
  mutation 
  None of the listed answers are correct 
  homeostasis
A

homeostasis

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8
Q

The maximum size of a cell is determined by the ratio between the cell’s

  All of the listed answers are correct 
  surface area and volume. 
  volume and organelles. 
  None of the listed answers are correct 
  organelles and cytoplasm. 
  cytoplasm and nucleus.
A

surface area and volume.

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9
Q

The ____________ houses a eukaryotic cell’s DNA.

  nucleus 
  None of the listed answers are correct 
  cell wall 
  ER 
  cytoskeleton 
  All of the listed answers are correct
A

nucleus

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10
Q

The disorder characterized by cells dividing uncontrollably within the body is called

  mad cow disease. 
  cancer. 
  AIDS. 
  cystic fibrosis. 
  hepatitis. 
  None of the listed answers are correct
A

Cancer

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11
Q

The demand for more food is due to

the growth of the human population.
uncontrolled scientific experimentation.
the spread of disease.
evolution.
None of the listed answers are correct
extinction.

A

the growth of the human population.

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12
Q

Eukaryotic cells differ from prokaryotic cells in that eukaryotic cells

  lack organelles. 
  All of the listed answers are correct 
  are smaller than prokaryotic cells. 
  have DNA but not ribosomes. 
  None of the listed answers are correct 
  have a nucleus.
A

have a nucleus.

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13
Q

Cell-membrane proteins do NOT include

transporters.
enzymes.
markers.
lipids.

A

Lipids

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14
Q

Toads that live in hot, dry regions bury themselves in the soil during the day. What theme of biology does this phenomenon describe?

  homeostasis 
  heredity 
  extinction 
  evolution 
  None of the listed answers are correct 
  metabolism
A

homeostasis

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15
Q

In the cell membrane, the fatty acids of phospholipid molecules

  face the outside of the cell. 
  All of the listed answers are correct 
  None of the listed answers are correct 
  are on both sides of the membrane. 
  are in the interior of the membrane. 
  face the cytoplasm.
A

are in the interior of the membrane.

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16
Q

Change in the inherited characteristics of species over generations is called ___________.

  None of the listed answers are correct 
  homeostasis 
  evolution 
  mutation 
  ecology 
  genetics
A

evolution

17
Q

A substance that forms hydrogen ions when dissolved in water is called a(n)

  atom. 
  None of the listed answers are correct 
  carbohydrate. 
  base. 
  acid. 
  compound.
A

Acid

18
Q

The main advantage of the transmission electron microscope is that it shows

the actual colors of a cell’s components.
All of the listed answers are correct
the organelles of living cells.
None of the listed answers are correct
three-dimensional images of cell surfaces.
a cell’s internal structure in fine detail.

A

a cell’s internal structure in fine detail.

19
Q

One function of the Golgi apparatus is to

  store DNA. 
  digest and recycle the cell's wastes.
  All of the listed answers are correct 
  make carbohydrates. 
  None of the listed answers are correct 
  modify proteins.
A

modify proteins.

Biology (14 decks)

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