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WorksheetsAP Bio Semester 1 Review, Part 1
Total questions: 15
Worksheet time: 9mins
Name
Class
Date
1.
Which bond or interaction would be difficult to disrupt when compounds are put into water?
a)
covalent bonds between carbon atoms
b)
hydrogen bonds
c)
ionic bonds
d)
ionic and hydrogen bonds
2.
The partial negative charge at one end of a water molecule is attracted to the partial positive charge of another molecule. What is this attraction called?
a)
a covalent bond
b)
a hydrogen bond
c)
an ionic bond
d)
a Van der Waals interaction
3.
The partial negative charge in a molecule of water occurs because ...
a)
one of the hydrogen atoms donates an electron to the oxygen atom
b)
the electrons shared between the oxygen and hydrogen atoms spend more time around the oxygen atom nucleus than around the hydrogen atom nucleus.
4.
The element present in all organic molecules is
a)
hydrogen
b)
oxygen
c)
carbon
d)
nitrogen
5.
Why is carbon so important to biology?
a)
It is a common element on Earth.
b)
It has very little electronegativity, making it a good electron donor.
c)
It bonds to only a few other elements.
d)
It can form a variety of carbon skeletons and host functional groups.
6.
A 'thiol' functional group includes which element?
a)
oxygen
b)
carbon
c)
phosphorous
d)
sulfur
7.
Which of the following statements about the 5' end of a polynucleotide strand of RNA is correct?
a)
The 5' end has a hydroxyl group attached to the number 5 carbon of ribose.
b)
The 5' end has a phosphate group attached to the number 5 carbon of ribose.
8.
Prokaryotes are classified as belonging to two different domains. What are the domains?
a)
Bacteria & Eukarya
b)
Bacteria & Archaea
c)
Archaea & Protista
d)
Bacteria & Protista
9.
Which of the following is present in a prokaryotic cell?
a)
mitochondrion
b)
ribosome
c)
chloroplast
d)
ER
10.
Which of the following is NOT true?
Both chloroplasts & mitochondria ...
Both chloroplasts & mitochondria ...
a)
have their own DNA
b)
have multiple membranes
c)
are part of the endomembrane system
d)
are capable of reproducing themselves
11.
In a plant cell, DNA may be found...
a)
only in the nucleus.
b)
only in the nucleus and the chloroplasts.
c)
in the nucleus, mitochondria, and chloroplasts.
d)
in the nucleus, mitochondria, chloroplasts, and peroxisomes.
12.
Other than on ribosomes free in the cytosol or ribosomes on the ER, where else are proteins produced?
a)
in the extracellular matrix
b)
in the Golgi apparatus
c)
in the mitochondria (Hint: has its own DNA)
d)
in the nucleolus
13.
Which of the following is a characteristic feature of a carrier protein in a plasma membrane?
a)
It exhibits specificity for a particular type of molecule.
b)
It requires the expenditure of cellular energy to function.
c)
It works against diffusion.
d)
It has no hydrophobic regions.
14.
When a cell is in equilibrium with its environment, which of the following occurs for substances that can diffuse through the cell?
a)
There is random movement of substances into and out of the cell.
b)
There is directed movement of substances into and out of the cell.
c)
There is no movement of substances into and out of the cell.
d)
All movement of molecules is directed by active transport.
15.
Which of these conditions are always true of populations due to natural selection?
1) The population must vary in traits that are inheritable.
2) Some heritable traits must increase reproductive success.
3) Individuals pass on most traits that they acquire during their lifetime.
1) The population must vary in traits that are inheritable.
2) Some heritable traits must increase reproductive success.
3) Individuals pass on most traits that they acquire during their lifetime.
a)
Condition 1 only
b)
Condition 2 only
c)
Conditions 1 & 2
d)
Conditions 2 & 3
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