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WorksheetsComp 4 Review and Test
Total questions: 44
Worksheet time: 22mins
Name
Class
Date
1.
Lisa has two dogs, Winnie and Pooh. She wishes to conduct an experiment to see if a new shampoo keeps her dogs cleaner than her old shampoo. If she conducts her experiment with Winnie and uses Pooh as her control, what should she do to Pooh?
a)
Wash her with the new shampoo
b)
Wash her with the old shampoo
c)
Wash her with bar soap
d)
Not bathe her at all
2.
The road between Greenville and Raleigh is expanded from two lanes to six lanes. Mr. Smith makes a guess that now it will take less time to drive from Greenville to Raleigh. His guess is called a/an:
a)
Bet
b)
Hypothesis
c)
Fact
d)
Evolution
3.
A scientist is told that an old man in Iowa is 176 years old, yet the scientist does not believe the story is true. The scientist can best be described as:
a)
Gullible
b)
Jealous
c)
Mean
d)
Skeptical
4.
Steve believes the pants he bought will shrink if washed in hot water. He washes the pants in hot water and they shrink. What is Steve's conclusion?
a)
Hot water caused his pants to shrink
b)
Hot water causes everything to shrink
c)
He has gained weight
d)
He should never wash anything in hot water.
5.
What is an example of a cause-effect conclusion?
a)
"When I go to a football game I get hoarse."
b)
"I get hoarse because my team is losing."
c)
"When I got to football games I scream for my team."
d)
"When I scream at t football game I get hoarse."
6.
Science allows us to predict what will happen. On a television news show, what person usually uses the MOST science
a)
News reporter
b)
Entertainment reporter
c)
Weather reporter
d)
Sports reporter
7.
What is the most quantifiable predictor of success in college?
a)
Grades earned in high school
b)
A person's desire to achieve
c)
A teacher's comments about a student
d)
Popularity in high school
8.
Mrs Jones notices that her students are always excited on the last day of the school year. Her conclusion can best be described as a:
a)
Correlation
b)
Confusion
c)
Diagnosis
d)
Decree
9.
To test a hypothesis a person would carry out a/an:
a)
Experiment
b)
Merriment
c)
Meal
d)
Written Test
10.
An example of an objective observation about a plant would be that the plant:
a)
Has beautiful colors
b)
Smells good
c)
Is healthy
d)
Has nine leaves
11.
Casey looks under a microscope and notices hairy arms attached to a bacterial cell. What is the function of the hairy arms?
a)
They capture viruses
b)
They allow bacteria to see
c)
Movement
d)
Respiration
12.
It is said that ribosomes and DNA are swimming inside a bacterial cell. In what are they swimming?
a)
Alcohol
b)
Chlorine
c)
Chlorophyll
d)
Cytoplasm
13.
What cells can be found just about everywhere, in all temperatures and in environments with and without oxygen?
a)
Animal cells
b)
Human cells
c)
Plant cells
d)
Bacterial cells
14.
A plant without sunlight is like a human without:
a)
Food
b)
Water
c)
Love
d)
Happiness
15.
What do plant cells have that animal cells do not?
a)
Batteries
b)
Chloroplasts
c)
Centrioles
d)
Flagellum
16.
If the mitochondria were removed from a cell, the cell would loose its:
a)
DNA
b)
Digestion
c)
Energy
d)
Water
17.
Of the following shapes, which describe cocci- shaped bacteria?
a)
Hearts
b)
Squares
c)
Circles
d)
Rods
18.
What organelle do bacterial cells, plant cells, and animal cells all have in common?
a)
Cell wall
b)
Single, closed DNA circle
c)
Nucleoid
d)
Chloroplast
19.
All of the cells in your body come from:
a)
Other cells in your body
b)
Plants
c)
The food we eat
d)
Molecules in the air
20.
Of the following, what is he smallest?
a)
Plant cell
b)
Molecule
c)
Atom
d)
Amino Acid
21.
What is the effect when a mutation causes the gene to change?
a)
The organism will die
b)
All mutations improve the organism
c)
Mutations do not cause changes in the organism
d)
Some are good, some are bad, and some have no effect at all
22.
In the 1860's, Gregor Mendel discovered that "factors" controlled height and flower color in pea plants. We now know that those factors are:
a)
Carbohydrates
b)
Fats
c)
Genes
d)
Cells
23.
Carmen has curly hair. She married a man with curly hair. All three of her children have curly hair. This is MOST LIKELY because of:
a)
Genetics
b)
Diet
c)
Environment
d)
A hair stylist
24.
What large, complex molecules perform most of life's functions?
a)
Fats
b)
Carbohydrates
c)
Proteins
d)
Acids
25.
If a mother and father both have brown eyes, how could their daughter have blue eyes?
a)
The daughter must be adopted
b)
Both parents have recessive blue-eye genes
c)
Only one parent has a recessive blue eye gene
d)
Blue eyes are dominant over brown eyes
26.
Proteins are molecular machines that perform a variety of cell functions. What gives proteins their instructions?
a)
Mitochondria
b)
DNA
c)
Mutants
d)
Carbohydrates
27.
When DNA is removed from a cell and a DNA fingerprint is identified, that DNA fingerprint could be used to:
a)
Cure the common cold
b)
Solve a crime
c)
Diagnose a viral disease
d)
Cure diabetes
28.
When isolating DNA in a laboratory experiment, what can be used to supply the enzyme?
a)
Salt
b)
Alcohol
c)
Meat tenderizer
d)
Liquid detergent
29.
How many long, coiled molecules of DNA are in the nucleus of human cells?
a)
1
b)
22
c)
46
d)
144
30.
What is the complete set of all the chromosomes known as?
a)
Fingerprint
b)
Genome
c)
Passport
d)
Profile
31.
In a model of DNA, where would one find hydrogen bonds?
a)
Connecting the bases
b)
Along the sides of the double helix
c)
Connecting the sugar and phosphate
d)
Outside the cell membrane
32.
A DNA molecule resembles a:
a)
Full moon
b)
Ball and chain
c)
Series of connected feathers
d)
Twisted ladder
33.
What is DNA?
a)
Dish Detergent
b)
Deoxycodoneribonucleic acid
c)
Deoxyribonucleic acid
d)
Deoxceritonic acid
34.
In DNA, adenine always pairs with:
a)
Cytosine
b)
Thymine
c)
Phosphate
d)
Guanine
35.
What statement about DNA is true?
a)
DNA is made up entirely of proteins
b)
DNA is involved in the process of heredity
c)
DNA is found only in animals
d)
DNA is found in the vacuoles of cells
36.
What might a forensic scientist be asked to do in a murder trial?
a)
Identify whose blood is on the murder weapon
b)
Testify to the mental state of the accused
c)
Talk about the illegal accounting practices of the victim
d)
Explain what the victim was doing the day before the crime
37.
A young girl is missing, and investigators find a stained article of clothing where she was last seen. Testing the stain can tell investigators if the stain was:
a)
Twenty days old
b)
Animal Blood
c)
An accidental spill
d)
Caused by the killer
38.
What is forensic science?
a)
When scientists improve plants by using DNA
b)
The use of science in growing trees
c)
Any legal action that requires a police investigation
d)
When science is used to solve a crime
39.
Mrs. Moe is missing and police want her DNA. The best place for them to find it is in Mrs. Moe's:
a)
Tennis shoes
b)
Dishes
c)
Hair brush
d)
Bank account statements
40.
What expert would be called upon to examine the skeletal remains that police found in the woods?
a)
Ballistics expert
b)
Forensic anthropologist
c)
Judge
d)
Forensic profiler
41.
A house burned to the ground with one victim inside. What is the BEST way for forensic scientists to identify the victim
a)
Eyewitness accounts
b)
Blood analysis
c)
Teeth
d)
Personal documents
42.
A skeleton is found buried at a campsite. What can examination of the skeleton tell investigators about the victim?
a)
Race and gender
b)
Occupation and income
c)
Height and weight at the time of death
d)
Ethnicity and religion
43.
If you earned a degree as a forensic scientist, you would MOST LIKELY find a job with:
a)
a school
b)
the FBI
c)
a TV show
d)
Making software
44.
What is done by a medical examiner to determine the cause of death?
a)
Biopsy
b)
Autopsy
c)
Forgery
d)
Sonogram
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