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WorksheetsMidterm Review- Biology I
Total questions: 35
Worksheet time: 18mins
Name
Class
Date
1.
What type of interactions are shown by the dotted lines between the water molecules?
a)
ionic bonding
b)
hydrogen bonding
c)
bipolar bonding
d)
nonpolar bonding
2.
Water and oil are place in the same vessel and stirred. the reason that oil and water will not mix is because-
a)
water is polar and oil is nonpolar
b)
water is nonpolar and oil is polar
c)
both water and oil are polar
d)
both water and oil are nonpolar
3.
What prevents a lake or ocean from freezing solid?
a)
Hydrogen bonding is unable to freeze an entire body of water
b)
liquid water contains an excessive amount of suspended nutrients
c)
the solid form of water floats on the liquid form
d)
a water molecule is cohesive but not adhesive
4.
A pure substance with a pH of 14 is called-
a)
a base
b)
an indicator
c)
a salt
d)
an acid
5.
What are the simple precursor molecules that become available to an organism when it eats a diet rich in carbohydrates?
a)
glycerol
b)
monosaccharides
c)
amino acids
d)
fatty acids
6.
What is true about enzymes?
a)
they are unaffected by changes in temperature
b)
their overall shape can change without affecting their function
c)
they are unaffected by changes in pH
d)
they catalyze one specific type of reaction
7.
What suffix is used in the names of most enzymes?
a)
-yme
b)
-gen
c)
-ase
d)
-nic
8.
All carbohydrates are-
a)
composed of carbon, hydrogen, and oxygen atoms
b)
made of amino acids
c)
made of fatty acids
d)
composed of carbon, hydrogen, and water molecules
9.
Photosynthesis and cellular respiration are often described as existing in a cycle. Which statement best describes why this is true?
a)
Each reaction results in chemical products that are needed as reactants for the other reaction
b)
Heterotrophs can perform photosynthesis and cellular respiration, where autotrophs can only perform photosynthesis
c)
plants perform only cellular respiration and animals perform photosynthesis
d)
plants perform only photosynthesis and animals perform cellular respiration
10.
This chemical equation best represents which chemical process?
a)
fermentation
b)
photosynthesis
c)
cellular respiration
d)
combustion
11.
This chemical equation best represents which chemical process?
a)
fermentation
b)
cellular respiration
c)
combustion
d)
photosynthesis
12.
Cells break down food molecules, like glucose, to obtain energy needed to sustain life. This energy is then-
a)
released as heat
b)
used to form molecules of ATP
c)
stored as fat
d)
used to form molecules of ADP
13.
The smallest unit that can carry out all activities associated with life is-
a)
the organelle
b)
the cell
c)
the atom
d)
a tissue
14.
Which of these supports the cell theory as it is stated today?
a)
cells must contain a nucleus
b)
not all cells are alive
c)
all organisms are composed of more than one cell
d)
new cells are produced from existing cells
15.
Amino acids link together by peptide bonds to form proteins. In which organelle would this process occur?
a)
golgi body
b)
ribosome
c)
mitochondria
d)
lysosome
16.
What is a difference between a prokaryote and a eukaryote?
a)
prokaryotes do not have genetic material
b)
prokaryotes do not have a membrane surrounding their genetic material
c)
prokaryotes cannot have a cell wall
d)
prokaryotes do not have cytoplasm
17.
Which is a characteristic that identifies this as a plant cell?
a)
no organelles
b)
a nucleus
c)
no cell wall
d)
a large vacuole
18.
Which organelle is represented by this diagram?
a)
cell wall
b)
nucleus
c)
cell membrane
d)
mitochondria
19.
Which structure is responsible for releasing energy for the cell?
a)
cell membrane
b)
vacuole
c)
mitochondria
d)
ER
20.
After cell division, each daughter cell has an increased ration of surface area to volume. This allows efficient-
a)
regulation of the exchange of proteins
b)
amounts of internal solute concentrations
c)
diffusion of enzymes into the cell
d)
exchange of materials with the environment
21.
What process is represented by the diagram?
a)
passive transport
b)
diffusion
c)
endocytosis
d)
exocytosis
22.
What process is represented by the diagram?
a)
diffusion
b)
active transport
c)
endocytosis
d)
exocytosis
23.
What cellular process is represented by the diagram?
a)
mitosis
b)
meiosis
c)
cellular respiration
24.
Red flower color is dominant to white flower color in roses. What is the expected result of a cross between two heterozygous rose plants?
a)
100% red
b)
75% red, 25% white
c)
50% red, 50% white
d)
100% white
25.
A student is investigating the effect of plants on indoor air quality and states, "If plants are added to an indoor environment, the air quality will improve." This statement is an example of-
a)
a theory
b)
a procedure
c)
a hypothesis
d)
an observation
26.
Which is an activity that increases genetic variation within a population of earthworms?
a)
binary fission
b)
sexual reproduction
c)
budding
d)
fragmentation
27.
Form of asexual reproduction used by bacteria.
a)
mitosis
b)
binary fission
c)
sexual reproduction
d)
meiosis
28.
According to this diagram, the result of spermatogenesis is four sperm cells, each with-
a)
strands of DNA that resulted from crossing over
b)
half of the original number of chromosomes
c)
genetically identical strands of DNA
d)
complete copies of all the original chromosomes
29.
One parent is heterozygous for a certain trait (Hh). The other parent is homozygous dominant (HH) for that trait. What is the percent chance that an offspring from this cross will be heterozygous?
a)
0%
b)
25%
c)
50%
d)
100%
30.
Different forms of a gene are referred to as-
a)
autosomes
b)
loci
c)
alleles
d)
chromatids
31.
A genetic pedigree showing that only males are affected by a certain disorder is evidence of what type of inheritance?
a)
recessive
b)
dominant
c)
passive
d)
sex-linked
32.
An individual with Trisomy 18 has how many chromosomes?
a)
24
b)
47
c)
46
d)
48
33.
What does NOT provide new genetic combinations?
a)
crossing over
b)
sexual reproduction
c)
mutation
d)
cytokinesis
34.
Using this karyotype, what is the sex of the individual?
a)
male
b)
female
35.
Mary has a widow's peak just like her maternal grandfather. Neither her mother or father have a widow's peak, which is the dominant trait. Which statement best explains how Mary inherited a widow's peak?
a)
she received a recessive allele from her mother and dominant allele from her father.
b)
she received recessive alleles from both parents
c)
she received a dominant allele from her mother and recessive allele from her father
d)
she received a dominant allele from both parents
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