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WorksheetsEOC Review Questions
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
AA and aa are
a)
heterozygous genotypes
b)
homozygous phenotypes
c)
heterozygous phenotypes
d)
homozygous genotypes
2.
Which is a biotic factor
a)
grass
b)
water
c)
soil
d)
rocks
3.
When two organisms occupy the same niche ______ increases
a)
reproduction
b)
fertilization
c)
adaptation
d)
competition
4.
What is required for the continuation of a species
a)
reproduction
b)
ability to acquire shelter
c)
ability to find food
d)
none of the above
5.
Which taxon includes organisms that can interbreed to produce fertile offspring
a)
genus
b)
kingdom
c)
species
d)
class
6.
Meiosis creates _______, __________, _______.
a)
four haploid gametes
b)
two diploid somatic cells
c)
four haploid somatic cells
d)
two haploid gametes
7.
Mitosis creates _________, __________, __________
a)
four diploid somatic cells
b)
two diploid gametes
c)
two diploid somatic cells
d)
four haploid gamets
8.
What is the purpose of fertilization?
a)
restore the zygote to a diploid # of chromosomes
b)
restore the zygote to a haploid # of chromosomes
c)
fuse two sperm
d)
it has no purpose
9.
Fill in the blank
DNA ---_________-----___________
a)
ribosome, lipids
b)
RNA, protein
c)
protein, RNA
d)
nucleus, ER
10.
The following cell structures are located within cells that make proteins. Which description best explains the relationship among these cell structures in making a protein?
nucleus
ribosome
endoplasmic reticulum
a)
nucleus makes protein --> protein winds through the ER --> protein folds into its active shape
b)
nucleus directs ER to assemble the protein --> ribosomes surround protein--> folds into active shape
c)
ER creates the proteins --> ENA in the nucleus codes for ribosomes to surround proteins --> protein folds
d)
DNA in the nucleus codes for the protein --> protein assembled in ribosomes and moves to ER--> protein folds into active shape.
11.
Which molecule ultimately codes for proteins
a)
carbohydrates
b)
DNA
c)
lipids
d)
Golgi bodies
12.
What is the role of hydrogen bonds in the structure of DNA
a)
to code for proteins
b)
to synthesize proteins
c)
to separate the strands
d)
to connect the base pairs
13.
A strand of DNA is exposed to intense heat. Which of these best describes what will happen to the strand of DNA
a)
the chemical bonds will be broken
b)
more nitrogen base pairs will be added
c)
the chemical bonds will be strengthened
d)
The nitrogen base pairs will swith places
14.
For enzymes to ____________, they must have the correct ________.
a)
slow down reactions, shape
b)
speed up reactions, order of n-bases
c)
speed up reactions, shape
d)
slow down reactions, bonds
15.
Which of the following is a role of proteins
a)
quick energy source
b)
storage of genetic material
c)
regulates what enters and leaves the cell
d)
transport
16.
When you remove a P from ATP energy is
a)
both stored and released
b)
stored
c)
neither stored nor released
d)
released
17.
Plant cells have cell membranes. True or false
a)
True
b)
False
18.
The cell wall is _________ permeable
a)
selectively
b)
totally
c)
radically
d)
not
19.
The cell membrane will let _______ __________ particles through.
a)
large charged
b)
large polar
c)
small polar
d)
small uncharged
20.
What organelle regulates what comes in and out of the cell?
a)
the cell membrane
b)
the cell wall
c)
the mitochondria
d)
the nucleus
21.
What types of organisms perform respiration
a)
plants
b)
animals
c)
plants and animals
d)
neither plants nor animals
22.
What could you do to lower the rate of photosynthesis
a)
increase carbon dioxide
b)
decrease temperature
c)
increase sunlight
d)
all of the above
23.
The products of respiration are the same as the ___________ for photosynthesis
a)
reactants
b)
products
c)
reactants, and products
d)
none of the above
24.
What are the reactants for respiration
a)
water, carbon dioxide, glucose
b)
carbon dioxide, glucose
c)
glucose, oxygen
d)
atp, water, glucose
25.
What are the reactants for photosynthesis
a)
carbon dioxide, water, sun
b)
oxygen, water, sun
c)
glucose, water
d)
ATP, sun, water
26.
A mutation is the change in the order of
a)
hydrogen bonds
b)
phosphate groups
c)
sugars
d)
nitrogen bases
27.
Two species have the same number of similar chromosomes. This could mean that they are
a)
closely related
b)
not related
c)
can't tell from the information
d)
none of the above
28.
What do we classify organisms based on
a)
DNA
b)
Embryology
c)
Fossil evidence
d)
All of the above
29.
The broadest taxon is the
a)
genus
b)
species
c)
kingdom
d)
class
30.
The most specific taxon is the
a)
genus
b)
kingdom
c)
species
d)
class
31.
Why might a organisms be reclassified into a new taxon?
a)
New information is discovered
b)
They eat different things
c)
They are differently colored
d)
The scientists always make mistakes
32.
In which organelle does photosynthesis occur?
a)
mitochondria
b)
nucleus
c)
Golgi apparatus
d)
chloroplast
33.
In which organelle does respiration occur?
a)
mitochondria
b)
chloroplast
c)
nucleus
d)
cell membrane
34.
What is the control center of a plant cell?
a)
mitochondria
b)
nucleus
c)
vacoule
d)
chloroplast
35.
This is large and central in plants
a)
nucleus
b)
mitochondira
c)
vacoule
d)
Golgi apparatus
36.
The process of by which a cell changes function is called
a)
cell change
b)
mutation
c)
differentiation
d)
gastrulation
37.
All fish in a local pond are very similar genetically. A pesticide that the fish are susceptible to runs off into the water. What happens to the population?
a)
increases
b)
increases then decreases
c)
no affect on the fish
d)
decreases
38.
Two gametes have 30 chromosomes each. After fertilization, how many chromosomes will the zygote have?
a)
30
b)
60
c)
120
d)
15
39.
A _________ structure is a structure that an organism has but no longer needs
a)
homologous
b)
analogous
c)
physiological
d)
vestigial
40.
An organism's role in its environment is its
a)
job
b)
niche
c)
competition
d)
adaptation
41.
What does the fish eat
a)
limpets
b)
mussels
c)
prawns
d)
welk
42.
What type of organisms are at the base of the food web?
a)
heterotrophs
b)
consumers
c)
autotrophs
d)
herbivores
43.
This is an example of what type of relationship
a)
parasitism
b)
commensalism
c)
mutualism
d)
predation
44.
A species of grass benefits from being grazed by cows. This is an example of
a)
parasitism
b)
commensalism
c)
mutualism
d)
predation
45.
A flea sucks blood from a dog. This is an example of
a)
parasitism
b)
commensalism
c)
mutualism
d)
predation
46.
Which parent's genes ultimately decides the sex of their child
a)
mother
b)
father
47.
Which is not a characteristic of sexual reproduction
a)
requires two partners
b)
allows organisms to adapt
c)
creates genetic variation
d)
quick and efficient
48.
The representation of an organism's physical traits are known as its
a)
physical representation
b)
genotype
c)
phenotype
d)
physicality
49.
The introduction of exotic species and natural disasters causes populations to
a)
go up
b)
go down
c)
stabilize
d)
remain the same
50.
A cell has 50 chromosomes. It undergoes mitosis twice. How many chromosomes do the daughter cells have
a)
50
b)
25
c)
100
d)
150
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