Worksheets2nd Semester Final 2023
Total questions: 86
Worksheet time: 1hrs 4mins
If the the air quality index is 30, it is safe for everyone to go outside. (a)
If the air quality index for the day is 105, it is unhealthy for ALL people. (a)
If a person has asthma and the air quality index is 155, should he or she go outside and play for long periods of time? (a)
Which health concern level has an index value of 201-300? (a)
Everyone should try to reduce their ...
carbon footprint
solar footprint
pylon footprint
global footprint
Which has more biodiversity?
A Rainforest
A meadow
Which is the risk group to black carbon/soot?
People with heart or lung diseases
People with low socioeconomic status
People with masks
Each of the 11 body systems:
Is interchangeable
Depends on others to function
Performs a single task
Is controlled by the lungs
The circulatory system and the nervous system both:
Deliver blood to vital organs
Extend throughout the body
Send electrical signals to the brain
Guard the body against infection
What can you infer about carbon dioxide from the function of the respiratory system?
It helps you breathe
It is more common than oxygen
It is harmful to your body
It is not found in the body
When you are hungry, you eat.
What is the response?
hunger
eating
stomach
nerves
According to the model, what is the response to HIGH blood glucose (sugar)?
Pancreas releases insulin into blood
Pancreas releases glucagon into blood
According to the model, what is the response to LOW blood glucose (sugar)?
Pancreas releases insulin into blood
Pancreas releases glucagon into blood
According to the model, what would happen if the pancreas did NOT detect rising blood glucose (sugar) level?
Blood sugar would return to normal
Most body cells would take up more glucose
Blood sugar would stay above normal
The liver would get the message to store glucose as glycogen
is the maintenance of a relatively stable internal environment
is the maintenance of a relatively stable external environment
When you exercise, what gas does your body NEED more of?
Blood
Carbon dioxide
Hydrogen
Oxygen
What process is being represented in this diagram?
sexual reproduction
mitosis
meiosis
DNA replication
What process is being represented in this diagram?
asexual reproduction
mitosis
meiosis
DNA replication
What is a gamete?
a body cell (ex. skin or heart cell)
an autosome
a sex cell (ex. sperm or egg)
a somatic cell
When does "crossing over" of genes occur during meiosis?
Prophase I
Metaphase I
Anaphase I
Telophase I
During which phase are sister chromatids lined up in a single file along the center of the cell?
Metaphase I
Metaphase II
Telophase I
Telophase II
What process is being represented in this diagram?
sexual reproduction
mitosis
meiosis
DNA replication
What process is being represented in this diagram?
asexual reproduction
mitosis
meiosis
DNA replication
If an egg cell of an organism contains 12 chromosomes, how many chromosomes should be present in a heart cell of the same organism?
12
24
6
48
What is a gamete?
a body cell (ex. skin or heart cell)
an autosome
a sex cell (ex. sperm or egg)
a somatic cell
How many chromosomes does a sex cell have compared to a body cell?
twice as many
the same amount
the same, but replicated
half as many
Somatic cells are formed during what process?
meiosis
mitosis
DNA replication
interphase
The matching pair of chromosomes you inherit from your genetic parents are called
sister chromatids
autosomes
homologous chromosomes
sex chromosomes
When does "crossing over" of genes occur during meiosis?
Prophase I
Metaphase I
Anaphase I
Telophase I
What happens during anaphase?
Chromosomes/chromatids line up in center
Nucleus dissolves
The cell divides
Chromosomes/chromatids are pulled apart
How many chromosomes are in the somatic cells of humans?
46
23
42
26
Which of the following is an example of a somatic cell?
egg cells
stomach cells
sperm cells
gametes
During which phase are sister chromatids lined up in a single file along the center of the cell?
Metaphase I
Metaphase II
Telophase I
Telophase II
Which letter(s) in the diagram correspond to cells that are haploid?
A and B
A and C
B and C
A only
A diploid pea plant cell contains 14 chromosomes. How many chromsomes would be in a haploid pea plant cell?
28
14
7
21
What is the purpose of meiosis?
growth
repair
reproduction
to create identical cells
What is the purpose of mitosis?
growth and repair
reproduction
genetic diversity
to create unique cells
True or False: Crossing over only occurs in meiosis.
True
False
True or False: DNA replication occurs only before mitosis
True
False
True or False: Meiosis results in identical cells.
True
False
True or False: Meiosis produces haploid gametes.
True
False
True or False: Meiosis results in identical cells.
True
False
Any organism that causes disease like a virus or bacteria is called:
Antibiotics
Antibody
Pathogen
Phagocyte
Part of the body's defense against pathogens in which cells of the immune system react to each kind of pathogen with a defense targeted specifically at that pathogen is called:
Protective Barrier
Inflammatory Response
Immune Response
Stomach acid
A protein produced by B cells of the immune system that destroys pathogens is called:
Antigens
Antibodies
T-cells
Lymphocytes
The body's ability to destroy pathogens before they can cause disease is called:
Tolerance
Immunity
Vaccine
Inflammatory response
Which of the following is a way to spread infectious diseases?
Touching contaminated objects
Not washing hands regularly
Being near infected people
All of these are ways
When the body encounters a pathogen, antibodies are created that are specific to that pathogen. The next time the body encounters the pathogen, the response will be:
Slower
Faster
What is a preparation of dead or weakened pathogens that is introduced into the body to cause an immune response?
fungi
vaccine
antigens
These 2 parts of the microscope support the entire microscope.
Arm; Illuminator
Base; eyepiece
Arm; Base
Objective Lenses; Stage
What is the purpose of the stage?
To mount the specimen
To sharpen the image of the specimen
To magnify the the image
Holds the slide in place
Which objective lense is used to locate the specimen?
High power objective lense
Low power objective lense
In a compound light microscope, there is a steady light source. What is the part that emits light called?
Objective Lenses
Illuminator
Ocular lense
Stage
Viruses need a ____________ in order to make copies of themselves.
bacterial cell
host cell
capsid
vaccine
Antibiotics ________ treat viral infections.
can
cannot
One you are infected with a virus, you can only treat the symptoms.
True
False
When given a vaccine, your body recognizes it as an invader and builds _________ against the virus.
lysogens
capsids
antibodies
immunoglobulins
Which genotype is homozygous? (a)
Which genotype is heterozygous? (a)
Complete the punnett square; what is the likelihood that an offspring is homozygous recessive?
1 in 4, or 25%
2 in 4, or 50%
1 in 2, or 50%
0 in 4, or o%
Two heterozygous yellow gummies mate. What percentage of their offspring are yellow?
0
25
75
100
If only (a) phenotypes are possible, the inheritance pattern is normal (b) . When three (c) are possible, and a heterozygote has a blended appearance, the inheritance pattern is (d) dominance.
The first stage of protein synthesis is called a
mitosis
replication
translation
transcription
The second stage of protein synthesis is called a
mitosis
replication
translation
transcription
Which of the following summarizes what is happening during transcription?
mRNA ⇒ DNA
DNA ⇒ mRNA
mRNA ⇒ protein
protein ⇒ mRNA
Which of the following summarizes what is happening during translation?
mRNA ⇒ DNA
DNA ⇒ mRNA
mRNA ⇒ protein
protein ⇒ mRNA
Which statement about transcription and translation is correct?
Transcription takes place in the nucleus, whereas translation takes place in the cytoplasm.
Translation takes place in the nucleus, whereas transcription takes place in the cytoplasm.
Which of the following is the complementary mRNA sequence to this DNA strand: AAA TCG TTG CCC
AAA TCG TTG CCC
TTT AGC AAC GGG
UUU AGC AAC GGG
UUU TGC TTC GGG
Which of the tRNA anticodons are complementary to the following mRNA codons: UUU-CCG-AAA
UUU-CCG-AAA
AAA-GGC-TTT
AAA-GGC-UUU
TTT-GGC-UUU
What amino acid is represented by the codon UUA?
Phenylalanine
Tyrosine
Leucine
Stop codon
Which codon can code for tryptophan?
U G G
A G U
C A A
A U G
What process is shown in the image
Mitosis
Replication
Transcription
Translation
What process is shown in the image?
Mitosis
Replication
Transcription
Translation
Transfer RNA (tRNA) is used in
transcription.
translation.
Proteins are made at the
nucleus.
ribosome.
Which represents the correct flow of genetic information (central dogma)?
DNA → RNA → Protein
RNA → DNA → Protein
Protein → RNA → DNA
DNA → Protein → RNA
________ can leave the nucleus.
DNA
RNA
Both DNA and RNA
CRISPR can edit DNA. What organisms naturally has CRISPR?
Viruses
Humans
Plants
Bacteria
Why do bacteria have CRISPR? Check all that apply.
To be able to remember which viruses they have been infected with
To be able to edit virus DNA
To cut apart virus DNA thereby stopping the virus infection
To be able to edit their own DNA
What enzyme is used in CRISPR gene editing?
Cas3
Cpr 9
Rna5
Cas 9
What was the original function of the CRISPR system?
Defending bacteria from viral infections
Defending bacteriophages from bacteria
Defending leukocytes from viruses
Defending against bacteria
What possible risks are there to genetic modification of designer babies?
New forms of illnesses may arise
May remove certain genes off target that are important for the baby’s overall development and growth
Both Options
Neither Options
