Question 1 5 / 5 points
A balloon permeable to water but not to glucose contains a 10% glucose solution. A beaker contains a 5% glucose solution. Which of the following is true?
Question options:
The solution in the beaker is hypertonic relative to the solution in the balloon.
The solution in the balloon is isotonic; the solution in the beaker is hypertonic.
When placed in the beaker, the balloon will lose water by osmosis.
The solution in the balloon is hypertonic relative to the solution in the beaker.
Question 2 5 / 5 points
Relaying a message from a receptor protein to a molecule that performs a specific function within a cell is called:
Question options:
signal transduction.
inhibition.
self-recognition.
selective permeability.
Question 3 5 / 5 points
Microtubules are associated with:
Question options:
cilia.
flagella.
cell shape.
All of the above
Question 4 5 / 5 points
Usually, enzymes are:
Question options:
fats.
steroids.
chemical reactions.
proteins.
Question 5 5 / 5 points
Which of the following processes could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings?
Question options:
Active transport
Facilitated diffusion
Diffusion
Osmosis
Question 6 5 / 5 points
Substances that plug up an enzyme's active site are:
Question options:
enzyme substrates.
enzyme inhibitors.
induced fit factors.
enzyme products.
Question 7 5 / 5 points
Functions of the smooth endoplasmic reticulum include:
Question options:
steroid synthesis, protein synthesis, and drug detoxification.
lipid synthesis, protein synthesis, and drug detoxification.
lipid synthesis, steroid synthesis, and drug detoxification.
lipid synthesis, steroid synthesis, and protein synthesis.
Question 8 5 / 5 points
If placed in tap water, an animal cell will undergo lysis, whereas a plant cell will not. What accounts for this difference?
Question options:
Expulsion of water by the plant cell's central vacuole
The relative impermeability of the plant cell membrane to water
The relative impermeability of the plant cell wall to water
The relative inelasticity and strength of the plant cell wall
Question 9 5 / 5 points
The endomembrane system includes:
Question options:
ribosomes, lysosomes, vacuoles, and the endoplasmic reticulum.
Golgi apparatus, ribosomes, vacuoles, and the endoplasmic reticulum.
Golgi apparatus, lysosomes, ribosomes, and the endoplasmic reticulum.
Golgi apparatus, lysosomes, vacuoles, and the endoplasmic reticulum.
Question 10 5 / 5 points
Tobacco smokers (and those exposed to tobacco smoke) are at greater risk of an ectopic (tubal) pregnancy. Based on your understanding of the structures of the cytoskeleton, what is the best explanation?
Question options:
Tobacco smokers tend to get pregnant when they are younger.
Tobacco interferes with the functioning of the flagella propelling sperm.
Tobacco interferes with the transfer of oxygen to the uterus, thereby forcing the zygote to implant in a fallopian tube.
Tobacco interferes with the sweeping motion of cilia that aids in the movement of the egg toward the uterus.
Question 11 5 / 5 points
In eukaryotic cells, what name is given to the region between the nucleus and the plasma membrane?
Question options:
Cytoplasm
Phospholipid bilayer
Nucleoid
Chloroplast
Question 12 5 / 5 points
Osmosis can be defined as:
Question options:
the diffusion of water.
the diffusion of nonpolar molecules.
active transport.
the diffusion of a solute.
Question 13 5 / 5 points
Which theory states that all living things are composed of cells?
Question options:
Cell theory
Hooke's rule
Evolutionary theory
Mendel's law
Question 14 5 / 5 points
Ten kilocalories are equivalent to __________ calories.
Question options:
1,000
10,000
0.1
100
Question 15 5 / 5 points
A rock on the top of a mountain contains __________ energy.
Question options:
potential
no
kinetic
conserved
Question 16 5 / 5 points
Information is transferred from the nucleus to ribosomes via:
Question options:
Mrna.
rough endoplasmic reticulum.
DNA.
smooth endoplasmic reticulum.
Question 17 5 / 5 points
In plant cells, __________ may contain organic nutrients, pigments, and poisons.
Question options:
mitochondria
chloroplasts
lysosomes
central vacuoles
Question 18 5 / 5 points
The region of an enzyme to which a substrate binds is called the __________ site.
Question options:
active
substrate
enzymatic
conformational
Question 19 5 / 5 points
Which organelle is responsible for photosynthesis?
Question options:
Smooth endoplasmic reticulum
Mitochondrion
Ribosome
Chloroplast
Question 20 5 / 5 points
Diffusion is an example of:
Question options:
phagocytosis.
active transport.
endocytosis.
passive transport.
A balloon permeable to water but not to glucose contains a 10% glucose solution. A beaker contains a 5% glucose solution. Which of the following is true?
Question options:
The solution in the beaker is hypertonic relative to the solution in the balloon.
The solution in the balloon is isotonic; the solution in the beaker is hypertonic.
When placed in the beaker, the balloon will lose water by osmosis.
The solution in the balloon is hypertonic relative to the solution in the beaker.
Question 2 5 / 5 points
Relaying a message from a receptor protein to a molecule that performs a specific function within a cell is called:
Question options:
signal transduction.
inhibition.
self-recognition.
selective permeability.
Question 3 5 / 5 points
Microtubules are associated with:
Question options:
cilia.
flagella.
cell shape.
All of the above
Question 4 5 / 5 points
Usually, enzymes are:
Question options:
fats.
steroids.
chemical reactions.
proteins.
Question 5 5 / 5 points
Which of the following processes could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings?
Question options:
Active transport
Facilitated diffusion
Diffusion
Osmosis
Question 6 5 / 5 points
Substances that plug up an enzyme's active site are:
Question options:
enzyme substrates.
enzyme inhibitors.
induced fit factors.
enzyme products.
Question 7 5 / 5 points
Functions of the smooth endoplasmic reticulum include:
Question options:
steroid synthesis, protein synthesis, and drug detoxification.
lipid synthesis, protein synthesis, and drug detoxification.
lipid synthesis, steroid synthesis, and drug detoxification.
lipid synthesis, steroid synthesis, and protein synthesis.
Question 8 5 / 5 points
If placed in tap water, an animal cell will undergo lysis, whereas a plant cell will not. What accounts for this difference?
Question options:
Expulsion of water by the plant cell's central vacuole
The relative impermeability of the plant cell membrane to water
The relative impermeability of the plant cell wall to water
The relative inelasticity and strength of the plant cell wall
Question 9 5 / 5 points
The endomembrane system includes:
Question options:
ribosomes, lysosomes, vacuoles, and the endoplasmic reticulum.
Golgi apparatus, ribosomes, vacuoles, and the endoplasmic reticulum.
Golgi apparatus, lysosomes, ribosomes, and the endoplasmic reticulum.
Golgi apparatus, lysosomes, vacuoles, and the endoplasmic reticulum.
Question 10 5 / 5 points
Tobacco smokers (and those exposed to tobacco smoke) are at greater risk of an ectopic (tubal) pregnancy. Based on your understanding of the structures of the cytoskeleton, what is the best explanation?
Question options:
Tobacco smokers tend to get pregnant when they are younger.
Tobacco interferes with the functioning of the flagella propelling sperm.
Tobacco interferes with the transfer of oxygen to the uterus, thereby forcing the zygote to implant in a fallopian tube.
Tobacco interferes with the sweeping motion of cilia that aids in the movement of the egg toward the uterus.
Question 11 5 / 5 points
In eukaryotic cells, what name is given to the region between the nucleus and the plasma membrane?
Question options:
Cytoplasm
Phospholipid bilayer
Nucleoid
Chloroplast
Question 12 5 / 5 points
Osmosis can be defined as:
Question options:
the diffusion of water.
the diffusion of nonpolar molecules.
active transport.
the diffusion of a solute.
Question 13 5 / 5 points
Which theory states that all living things are composed of cells?
Question options:
Cell theory
Hooke's rule
Evolutionary theory
Mendel's law
Question 14 5 / 5 points
Ten kilocalories are equivalent to __________ calories.
Question options:
1,000
10,000
0.1
100
Question 15 5 / 5 points
A rock on the top of a mountain contains __________ energy.
Question options:
potential
no
kinetic
conserved
Question 16 5 / 5 points
Information is transferred from the nucleus to ribosomes via:
Question options:
Mrna.
rough endoplasmic reticulum.
DNA.
smooth endoplasmic reticulum.
Question 17 5 / 5 points
In plant cells, __________ may contain organic nutrients, pigments, and poisons.
Question options:
mitochondria
chloroplasts
lysosomes
central vacuoles
Question 18 5 / 5 points
The region of an enzyme to which a substrate binds is called the __________ site.
Question options:
active
substrate
enzymatic
conformational
Question 19 5 / 5 points
Which organelle is responsible for photosynthesis?
Question options:
Smooth endoplasmic reticulum
Mitochondrion
Ribosome
Chloroplast
Question 20 5 / 5 points
Diffusion is an example of:
Question options:
phagocytosis.
active transport.
endocytosis.
passive transport.
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