Advertisement Upgrade to remove ads

Which of the following is not a property of life?
Organisms respond to environmental stimuli.
Living things exhibit complex but ordered organization.
Organisms take in energy and use it to perform all of life's activities.
Populations of organisms are unable to change over time.
Organisms reproduce their own kind.

Populations of organisms are unable to change over time.

Which of the following structures can perform all the activities required for life?

DNA molecules
cells
nuclei
organelles

cells

What is a gene?

a unit of heredity

Which of these is required for natural selection to occur?

inheritance
unequal reproductive success
overproduction
individual variation
all of the above

all of the above

Which of these statements is correct?

Scientific ideas are subjected to repeated testing.
Science does not require observations that other people can confirm.
Science can be used to prove or disprove the idea that deities or spirits cause earthquakes and other natural disasters.

ntific ideas are subjected to repeated testing.

The lower the pH of a solution, the ______.

ess toxic the solution
higher the OH— concentration
more basic the solution
greater the number of oxygen atoms
more acidic the solution

more acidic the solution

Sweating cools your body by ______.

evaporative cooling

Human body cells are approximately ______ water.

70-95%

Adjacent water molecules are connected by the ______.

electrical attraction between the hydrogen of one water molecule and the oxygen of another water molecule
electrical attraction between the hydrogens of adjacent water molecules
sharing of electrons between the hydrogen of one water molecule and the oxygen of another water molecule
sharing of electrons between hydrogens of adjacent water molecules
sharing of electrons between adjacent oxygen molecules

electrical attraction between the hydrogen of one water molecule and the oxygen of another water molecule

Adjacent water molecules are joined by ______ bonds.

polar and covalent

The hydrogens and oxygen of a water molecule are held together by ______ bonds.

covalent

What name is given to bonds that involve the sharing of electrons?

covalent

The bond between oppositely charged ions is a(n) ______ bond.

ionic

An atom's protons are found in its

nucleus

______ is an example of an element.

Methane
Glucose
Salt
Water
Carbon

Carbon

In the following reaction, galactose is a ______.
galactose + glucose → lactose + water

monomer

What name is given to the following reaction?
galactose + glucose → lactose + water

dehydration reaction

What name is given to the following reaction?
sucrose + water → glucose + fructose

hydrolysis

Carbohydrates typically include ______.

C, H, and O atoms

Complete the equation:
monosaccharide + monosaccharide → ______ + water

disaccharide

In the following equation, lactose is a ______.
galactose + glucose → lactose + water

disaccharide

Table sugar is ______.

sucrose

Which of the following is an example of a polysaccharide?

starch

Animals store carbohydrates as ______.

glycogen

Enzymes are ______.

proteins

Proteins are polymers constructed from ______ monomers.

amino acid

The linear sequence of amino acids in a polypeptide chain is referred to as its ______ structure.

pentamerous
primary
quaternary
tertiary
secondary

primary

Nucleic acids are polymers of ______ monomers

fatty acid
DNA
monosaccharide
hydrocarbon
nucleotide

nucleotide

Cellulose is an example of ______.

a polysaccharide

A glycerol with three fatty acids attached is referred to as a ______.

triglyceride

How does RNA differ from DNA?

RNA contains uracil; DNA contains thymine.

Relative to prokaryotic cells, eukaryotic cells are usually ______.

smaller and more complex
smaller and simpler
larger and more complex
larger and equally complex
smaller and equally complex
Correct

larger and more complex

Humans are composed of ______ cells.

eukaryotic

You find a cell of a type you have never seen before. The cell has both a nucleus and a cell wall. Therefore, you conclude that it must be a ______ cell.

plant

Which of the following is a function of the plasma membrane?

regulation of the passage of material into and out of the cell

______ are the major lipids of plasma membranes.

Phospholipids

The nuclear envelope is composed of ______.

a double membrane

Where does protein synthesis take place?

on ribosomes

The endomembrane system includes ______.

ribosomes, lysosomes, vacuoles, and the endoplasmic reticulum
Golgi apparatus, lysosomes, vacuoles, and ribosomes
Golgi apparatus, ribosomes, vacuoles, and the endoplasmic reticulum
Golgi apparatus, lysosomes, ribosomes, and the endoplasmic reticulum
Golgi apparatus, lysosomes, vacuoles, and the endoplasmic reticulum

Golgi apparatus, lysosomes, vacuoles, and the endoplasmic reticulum

Which of the following parts of a cell is (are) most like the shipping center of a company?

the nucleolus
mitochondria
the Golgi apparatus
the endoplasmic reticulum
chloroplasts

the Golgi apparatus

Lysosomes are responsible for ______.

photosynthesis
lipid synthesis
digestion of organic matter inside the cell
protein synthesis
cellular respiration

digestion of organic matter inside the cell

Vacuoles are ______.

found only in plant cells
manufactured by ribosomes
membranous sacs
composed of microtubules
composed of protein

membranous sacs

Plant cells, unlike animal cells, are characterized by the presence of a ______.

nucleus and cell wall
cell wall and ribosomes
cell wall and contractile vacuole
nucleus and contractile vacuole
cell wall and central vacuole

cell wall and central vacuole

Which organelle is responsible for photosynthesis?

smooth endoplasmic reticulum
ribosome
chloroplast
mitochondrion
nucleolus

chloroplast

Similar to the nucleus, chloroplasts and mitochondria are ______.

surrounded by two membranes
not surrounded by membrane
green

surrounded by two membranes

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set