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WorksheetsSpring Semester Test 2017 (Biology)
Total questions: 52
Worksheet time: 29mins
Name
Class
Date
1.
Which statement correctly describes how energy flows among organisms in a prairie food chain?
a)
Energy flows from the coyote to the rabbit to the grass.
b)
Energy flows from the grass to the rabbit to the coyote.
c)
Energy flows from the rabbit to both the coyote and the grass.
d)
Energy flows from both the grass and the coyote to the rabbit.
2.
In which food chain would humans receive the lease amount of energy supplied by the producer?
a)
Corn Crops ->Pigs -> Humans
b)
Corn Crops -> Humans
c)
Corn Crops ->Grasshoppers -> Trout -> Humans
3.
Suppose 50,000 kilocalories of the sun's energy falls on a lawn in Oklahoma. How much of this energy is available to rabbits that nibble on the lawn?
a)
50,000 kilocalories
b)
5,000 kilocalories
c)
500 kilocalories
d)
50 kilocalories
4.
Which of the following organisms would be found nearest the top level of a trophic pyramid?
a)
Cougar
b)
Antelope
c)
Plankton
d)
Redwood tree
5.
An energy pyramid consists of three trophic levels. The carnivores in the top trophic level require 5,000 per day. How many calories per day do the producers need to provide for the carnivores to reach their requirement?
a)
50
b)
5,000
c)
50,000
d)
500,000
6.
The water in Earth's atmosphere comes partly from
a)
The chemical separation of water molecules in oceans.
b)
Precipitation such as rain, snow, and sleet.
c)
Transpiration of trees in the process of photosynthesis.
d)
The melting of polar ice caps.
7.
__________ occurs when individiual organisms work together to accomplish a common goal.
a)
Competition
b)
Parasitism
c)
Predation
d)
Cooperation
8.
What is the term that describes the size of a population that can be supported by a given ecosystem?
a)
Carrying Capacity
b)
Life support balance
c)
Ecosystem balance
d)
recycling capacity
9.
Even though less then one percent of rainforest plant species have been tested for their medicinal properties, over 100 prescription drugs that are sold worldwide today are derived from rainforest plants. Based on this information, which of the following is true?
a)
The remaining 99% of rainforest plants must be destroyed to maintain biodiversity and to protect the medicinal plants.
b)
The loss of biodiversity due to deforestation will likely decrease the number of new medicines available in the future.
c)
Deforestation will help with medicinal research because it increases biodiversity in the rainforest by introducing new plant species.
d)
Maintaining biodiversity in the rainforest is not important since only about 1% of its plant species are useful.
10.
Stable ecosystems can be altered, either rapidly or slowly, through which of the following events?
a)
Human activities
b)
Natural distasters
c)
Climatic changes
d)
All of the above.
11.
Complete the sentence: Loss of biodiversity
a)
weakens an ecosystem
b)
increases the variety of species in an ecosystem
c)
causes no change in an ecosystem
d)
strengthens an ecosystem
12.
The relatively stable state of equilibrium that living systems maintain by regulating their metabolic processes is known as __________.
a)
Photosynthesis
b)
Osmosis
c)
Stabilization
d)
Homeostasis
13.
__________ are the basic building blocks of life.
a)
Cells
b)
Mithochondria
c)
DNA
d)
Organelles
14.
Which of the following are products in the process of photosynthesis?
a)
Glucose & water
b)
carbon dioxide & oxygen
c)
glucose & oxygen
d)
carbon dioxide & water
15.
During __________, energy from the sun is stored in the bonds of sugar molecules.
a)
Cellular Respiration
b)
Photosynthesis
c)
Glycolysis
d)
Calvin Cycle
16.
What are the products of cellular respiration?
a)
glucose & oxygen
b)
carbon dioxide & water
c)
glucose & water
d)
carbon dioxide & oxygen
17.
What is needed in order for aerobic respiration to take place?
a)
oxygen
b)
air
c)
hydrogen
d)
carbon
18.
What does anaerobic mean?
a)
Without air
b)
without oxygen
c)
Produces carbon dioxide
d)
Uses carbon dioxide
19.
During cellular respiration, energy is stored in the form of __________.
a)
Oxygen
b)
Food
c)
ATP
d)
Water
20.
Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. Of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. Which elements of these 11 amino acids are commonly obtained from the metabolism of sugar molecules?
a)
Nitrogen, Hydrogen, Carbon, Oxygen
b)
Sulfur, Nitrogen, Carbon
c)
Sulfur, Carbon, Hydrogen
d)
Carbon, Hydrogen, Oxygen
21.
The duck-billed platypus has 52 chromosomes in its body cells. When the platypus's body cells divide by mitosis, how many chromosomes will each daughter cell have?
a)
52
b)
21
c)
104
d)
34
22.
The duck-billed platypus has 52 chromosomes in its body cells. When the platypus's body cells divide by meiosis, how many chromosomes will each daughter cell have?
a)
52
b)
21
c)
104
d)
34
23.
Through which process do cells become specialized so they can perform specific functions within organisms?
a)
Differentiation
b)
Fertilization
c)
Mitosis
d)
Binary Fission
24.
What is a gene?
a)
Any single amino acid in a multicellular organism
b)
A sex cell that aids in organism reproduction
c)
A characteristic of an organism
d)
A set of instructions in the DNA sequence of an organism
25.
It is possible for an organism to inherit a gene with two dominant alleles. What is a gene with two dominant alleles that are expressed at the same time?
a)
Heterzygous
b)
Codominant
c)
Polygenic Traits
d)
Incomplete Dominance
26.
DNA provides the blueprint for the synthesis of proteins. A __________ is a segment of DNA that codes for one particular protein.
a)
Chromosome
b)
Trait
c)
Gene
d)
Genome
27.
How are the instructions coded by DNA translated into an organism's physical traits?
a)
Instructions coded by DNA sequences are translated into proteins which express an organism's physical traits.
b)
DNA -> nucleotides -> physical traits
c)
DNA code genetic instructions and express physical traits
d)
DNA sequences that code for genetic instructions attach to phosphate groups that express an organism's physical traits.
28.
What is the role of deoxyribonucleic acid in organisms?
a)
It is the controller of substances entereing and exiting a cell through the cellular membrane.
b)
It is the cell's method of storage and transmission of genetic material
c)
It is the filter of the cell's cytoplasm, keeping the cell free of waste.
d)
It is the messenger between RNA and the protein-synthesis ribosomes.
29.
The final shape of a protein is determined by the sequence of its amino acid residues. What determines this amino acid sequence?
a)
The number of nucleotides in the polypeptide.
b)
The sequence of nucleotides in the polypeptide.
c)
The sequence of nucleotides in the DNA template.
d)
The number of nucleotides in the DNA template
30.
Which of the following ways does genetic information typically flow in an organism?
a)
RNA - Proteins - DNA
b)
DNA - RNA - Proteins
c)
DNA - Proteins - RNA
d)
Proteins - RNA - DNA
31.
A scientific theory is __________.
a)
All scientific research is funded.
b)
The same as the conclusion of an experiment.
c)
A well-tested explanation that unifies a broad range of observations.
d)
The first step of a controlled experiment.
32.
How does an area's weather differ from the area's climate?
a)
Weather involves temperature and precipitation and climate involves only temperature.
b)
An area's weather depends on where it is located on Earth and the area's climate does not.
c)
An area's weather does not change very much and an area's climate changes many times.
d)
Weather is the area's day-to-day conditions and climate is the area's average conditions.
33.
An organism's niche is
a)
The range of physical and biological condations in which an organism lives and the way it obtains what it needs to survive and reproduce.
b)
All the physical and biological factors in the organism's environment.
c)
The range of temperatures that the organism needs to survive.
d)
A full description of the place an organism lives.
34.
A symbiotic relationship in which both species benefit is
a)
Commensalism
b)
Mutalism
c)
Predation
d)
Parasitism
35.
How is parasitism different from commensalism?
a)
Both organisms benfit from parasitism and only on organism benefits in commensalism.
b)
One organism benefits in parasitism and no organisms benefit in commensalism
c)
One organism is harmed in parasitism and both organisms are harmed in commensalism.
d)
One organism is harmed in parasitism and no organisms are harmed in commensalism.
36.
Who observed variations in the characteristics of plants and animals on different islands of the Galapagos?
a)
Charles Darwin
b)
Gregor Mendel
c)
Charles Dickens
d)
Charles Lamarck
37.
Which of the following would an animal breeder use to increase the number of cows that give the most milk?
a)
Overproduction
b)
Acquired characteristics
c)
Genetic isolation
d)
Artificial selection
38.
Structures that have different mature forms by develop from the same embryonic tissue are called
a)
Analogous.
b)
Homologous.
c)
Adaptations.
d)
Vestigial
39.
Traits, such as human height, that are controlled by more than one gene are known as
a)
single-gene traits
b)
recessive traits
c)
polygenic traits
d)
dominant traits
40.
Temporal isolation occurs when two different populations
a)
develop different mating behaviors
b)
reproduce at different times
c)
become geographically separated
d)
interbreed
41.
When two populations no longer interbreed, what is the result?
a)
genetic equilibrium
b)
stabilizing selection
c)
reproductive isolation
d)
artificial selection
42.
Mutations and the genetic recombinations that occurs during sexual reproduction are both sources of
a)
genetic variation
b)
genetic equilibirum
c)
stabilizing selection
d)
genetic drift
43.
The diffusion of water across a selectively permeable membrane is called
a)
osmotic pressure
b)
osmosis
c)
pinocytosis
d)
active transport
44.
What is the main goal of photosynthesis?
a)
Consuming ATP
b)
Producing ATP
c)
Consuming carbs
d)
Producing carbs
45.
Plants gather energy with light-absorbing molecules called
a)
pigments
b)
thylakoids
c)
chloroplasts
d)
glucose
46.
When during the cell cycle are chromosomes visible?
a)
Only during interphase
b)
Only when they are being replicated
c)
Only during cell division
d)
Only during the G1 phase
47.
During which phase in the cell cycle does mitosis happen?
a)
G1
b)
G2
c)
M
d)
S
48.
Which of the following is a correct statement about the vents of the cell cycle?
a)
Little happens during the G1 & G2
b)
DNA replicated during cytokinesis
c)
The M phase is usually the longest
d)
interphase consists of the G1, D, & G2 phases
49.
Which of the following is a nucleotide found in DNA?
a)
Adenine + phosphate group + thymine
b)
Cytosine + phosphate group + guanine
c)
Deoxyribose + phosphate group + polymerase
d)
Deoxyribose + phosphate group + cytosine
50.
DNA replication results in two DNA molecules,
a)
each with two new strands.
b)
one with two new strands and the other with two original strands.
c)
each with one new strand and one original strand
d)
each with two original strands
51.
Which type of RNA brings the information in the genetic code from the nucleus to other parts of the cell?
a)
rRNA
b)
tRNA
c)
mRNA
d)
RNA polymerase
52.
What happens during translation?
a)
mRNA is made from DNA
b)
Cell uses mRNA to make proteins
c)
tRNA is made from mRNA
d)
copies of DNA molecules are made
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