WorksheetsBiology EOC 1
Total questions: 25
Worksheet time: 2hrs 53mins
Name
Class
Date
1.
A scientist performs an experiment to see if acids have an effect on the health of a particular type of plant. Three sets of plants were treated with acidic solutions of known pH while the control set was treated with a solution of neutral pH
Which is the best conclusion for this experiment?
Which is the best conclusion for this experiment?
a)
Acid has no effect on the health of this type of plant
b)
High acidity is helpful to this type of plant.
c)
Low acidity is harmful to this type of plant.
d)
High acidity is harmful to this type of plant.
2.
An activity that occurs in the human body is shown. This activity helps to do which of the following?
a)
provide protection against pathogens
b)
produce antibiotics to control disease
c)
eliminate harmful gene alterations
d)
regulate production of ATP by the cell
3.
How do human diseases caused by bacteria and diseases caused by viruses react to antibiotics?
a)
Neither responds to antibiotics.
b)
Both respond to antibiotics.
c)
Viral diseases respond to antibiotics; bacterial diseases do not.
d)
Bacterial diseases respond to antibiotics; viral diseases do not.
4.
Which of the following best compares the structures of lipids and carbohydrates?
a)
both are made of monosaccharide monomers but lipids are hydrophobic and carbohydrates are hydrophilic
b)
both consist of carbon hydrogen and oxygen, but carbohydrates have repeating structural units and lipids do not
c)
both contain carbon and hydrogen, but carbohydrates also contain oxygen while lipids contain nitrogen
d)
both have a carbon backbone, but lipids have an amino group and carbohydrates have a carboxylic acid group
5.
Which of the following best describes the differences in function between enzymes and nucleic acids?
a)
nucleic acids are the building blocks of proteins while enzymes are used as the building blocks of phospholipids
b)
nucleic acids contain the genetic code for protein synthesis, while enzymes catalyze chemical reactions
c)
nucleic acids inhibit chemical reactions, while enzymes provide structural support in cells
d)
nucleic acids transmit signals that begin biochemical reactions, while enzymes convert carbohydrates to lipids and proteins
6.
Which of the following characteristics defines a cell as eukaryotic?
a)
Being able to move
b)
Being able to reproduce
c)
Having a nucleus
d)
Having ribosomes
7.
Which statement correctly compares a eukaryote and a prokaryote?
a)
eukaryotes have a cell wall while prokaryotes have a cell membrane
b)
eukaryotes have membrane-bound organelles are prokaryotes have few specialized structures
c)
eukaryotes use active transport to move substances across a cell membrane, while prokaryotes use facilitated diffusion
d)
eukaryotes use flagella to move themselves through substances, while prokaryotes can't move at all
8.
The diagram below represents a cell of a green plant.
Solar energy is used to produce energy-rich compounds in which structure?
Solar energy is used to produce energy-rich compounds in which structure?
a)
A
b)
B
c)
C
d)
D
9.
The diagram below represents a cell
Which organelle is the site where amino acids are synthesized into proteins?
Which organelle is the site where amino acids are synthesized into proteins?
a)
1
b)
2
c)
3
d)
4
10.
A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases. Which of the following has occurred?
a)
The swollen gums have absorbed the saltwater solution.
b)
The saltwater solution lowers the temperature of the water in the gums.
c)
The salt in the solution has moved against the concentration gradient.
d)
The water in the gums has moved out due to the high concentration of salt in the solution.
11.
Cells need to bring in molecules to carry out cellular processes. Often, this requires moving the molecules across the cell membrane against the concentration gradient. How do these molecules get into the cell?
a)
passive transport by diffusion
b)
active transport using ATP
c)
passive transport by osmosis
d)
phagocytosis
12.
During transcription the DNA base sequence is transcribed into a complimentary mRNA sequence. A codon table like the one shown below lists the amino acids coded for by particular triads of mRNA bases. A segment of DNA has undergone a mutation in which one nucleotide has been changed. The original sequence was ACG and the new sequence is ACA. Use the codon table to determine whether or not this mutation will cause a change in the phenotype of the organism
a)
yes, the phenotype of the organism would change because a new amino acid will be coded for.
b)
yes, the phenotype of the organism would change because any change in the DNA sequence will cause a change in phenotype.
c)
Even though the DNA sequence changed, the sequence still codes for the same amino acid, so no change in phenotype will occur.
d)
It is impossible to determine if a change in phenotype will occur using only the DNA sequence.
13.
Which row in the chart below indicates the correct process for each event indicated?
a)
row one
b)
row two
c)
row three
d)
row four
14.
While genetic engineering has positive benefits, there are also concerns associated with widespread use of genetic engineering in agriculture. If many farmers begin to plant more genetically modified crops that have an increased tolerance to insects, which of the following may result?
a)
an increase in the use of pesticides
b)
a decrease in the genetic diversity of crops
c)
an increase in the contamination of water supplies
d)
a decrease in crop productivity
15.
Before mitosis begins, which happens before the nucleus starts dividing?
a)
The cytoplasm separates.
b)
The DNA replicates.
c)
The sister chromatids separate.
d)
The homologous chromosomes cross over.
16.
What is the function of autotrophs in the carbon cycle?
a)
to use oxygen to produce glucose
b)
to take in excess water
c)
to use carbon dioxide to produce glucose
d)
to feed on herbivores
17.
Two different populations of birds live in the same area and eat the same types of food. Which most likely describes the relationship between these two populations of birds?
a)
competition
b)
mutualism
c)
parasitism
d)
predator-prey
18.
What will most likely happen if the human population continues to grow at current rates?
a)
There will be fewer natural resources available for future generations.
b)
There will be an increase in nitrogen levels in the atmosphere.
c)
There will be a decrease in water pollution.
d)
There will be an increase in the number of strong hurricanes.
19.
What are the subunits of DNA and their function?
a)
nucleotides that store information
b)
monosaccharides that provide quick energy for the cell
c)
lipids that store energy and provide insulation
d)
proteins that provide the building blocks for the structural components of organisms
20.
The yucca plant releases a strong scent at night when the yucca moth is active. The yucca moth, attracted by the scent, gathers pollen from the yucca flower. The yucca moth then deposits her eggs and the pollen on another plant. This ensures that the plant will be cross-pollinated and that the yucca moth larvae have a steady food supply. Which relationship does this BEST illustrate?
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
21.
The synthesis of a protein from an mRNA template is called ____________.
a)
transcription
b)
replication
c)
translation
d)
synthesis
22.
The alleles Bb are:
a)
homozygous
b)
heterozygous
c)
homozygous recessive
d)
heterozygous dominant
23.
Contains a phosphate group
a)
DNA
b)
RNA
c)
Both
24.
Gel electrophoresis can be used to analyze DNA. Which best represents a use of this process?
a)
to determine if an allele is present
b)
to identify the sequence of DNA nitrogenous bases
c)
to compare DNA sequences from two different individuals
d)
to provide the number of chromosomes present in an individual
25.
Which best represents one fundamental difference between the processes of mitosis and meiosis?
a)
meiosis results in 4 haploid cells, mitosis results in 4 diploid cells
b)
meiosis results in 4 haploid cells, mitosis results in 2 diploid cells
c)
meiosis results in 2 diploid cells, mitosis results in 2 haploid cells
d)
meiosis results in 2 diploid cells, mitosis results in 4 haploid cells
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