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Questions and Answers
Which of the following allows the AIDS virus, which contains RNA, to insert viral DNA into the DNA of a host cell after the AIDS virus enters the cell?
Which of the following allows the AIDS virus, which contains RNA, to insert viral DNA into the DNA of a host cell after the AIDS virus enters the cell?
- Reverse transcriptase, an enzyme encoded by the virus (correct)
- Receptor proteins located on the surface of the virus
- The protein that makes up the capsid of the virus
- The phospholipids found on the envelope of the virus
Which of the following is the main function of centrosomes in animal cells?
Which of the following is the main function of centrosomes in animal cells?
- Organelle trafficking
- Microtubule organization (correct)
- Cytoplasm formation
- Pathogen digestion
Which of the following is a group that can be measured against the experimental group?
Which of the following is a group that can be measured against the experimental group?
- Control (correct)
- Manipulated
- Variable
- Responding
Which of the following is used to determine a person's DNA sequence?
Which of the following is used to determine a person's DNA sequence?
The cytoskeleton of a cell is comprised of which of the following macromolecules?
The cytoskeleton of a cell is comprised of which of the following macromolecules?
Which of the following types of cells stimulates other immune cells to attack and destroy foreign agents?
Which of the following types of cells stimulates other immune cells to attack and destroy foreign agents?
A strand of DNA bases reads 5' AGCTAGCGT 3', what would the sequence of bases on the complementary strand read?
A strand of DNA bases reads 5' AGCTAGCGT 3', what would the sequence of bases on the complementary strand read?
Which of the following conclusions is supported by the data provided in the table?
Which of the following conclusions is supported by the data provided in the table?
Which of the following best explains why dipping an apple slice in lemon juice prevents it from browning?
Which of the following best explains why dipping an apple slice in lemon juice prevents it from browning?
Which of the following characteristics of water helps explain why coastal areas experience less dramatic temperature changes during the day?
Which of the following characteristics of water helps explain why coastal areas experience less dramatic temperature changes during the day?
Which part of the eukaryotic cell is responsible for making ATP?
Which part of the eukaryotic cell is responsible for making ATP?
What are the three types of salivary glands and where are they located in the mouth?
What are the three types of salivary glands and where are they located in the mouth?
Which of the following substances is excreted by the kidneys to regulate blood pressure?
Which of the following substances is excreted by the kidneys to regulate blood pressure?
What is the chemical formula for water?
What is the chemical formula for water?
Which of the following units is used to indicate length?
Which of the following units is used to indicate length?
A researcher collects data on the number of cars passing through a busy intersection at different times of the day for a month. This data would be most useful to analyze which of the following?
A researcher collects data on the number of cars passing through a busy intersection at different times of the day for a month. This data would be most useful to analyze which of the following?
What is the largest organ in the human body by surface area?
What is the largest organ in the human body by surface area?
Which of the following describes the function of ligaments?
Which of the following describes the function of ligaments?
What is the difference between innate and adaptive immunity?
What is the difference between innate and adaptive immunity?
Which of the following is responsible for carrying amino acids to ribosomes during protein synthesis?
Which of the following is responsible for carrying amino acids to ribosomes during protein synthesis?
What are the steps involved in the scientific method?
What are the steps involved in the scientific method?
What is the difference between a solid and a liquid?
What is the difference between a solid and a liquid?
Which part of the respiratory system is responsible for regulating breathing rate and depth?
Which part of the respiratory system is responsible for regulating breathing rate and depth?
What is the difference between a monosaccharide and a disaccharide?
What is the difference between a monosaccharide and a disaccharide?
Which of the following is the process by which DNA is copied into RNA?
Which of the following is the process by which DNA is copied into RNA?
What is the role of calcium in muscle contraction?
What is the role of calcium in muscle contraction?
What is the name of the dome-shaped muscle that plays a key role in breathing?
What is the name of the dome-shaped muscle that plays a key role in breathing?
What is the role of the epididymis in sperm maturation?
What is the role of the epididymis in sperm maturation?
Which of the following is a function of the respiratory system?
Which of the following is a function of the respiratory system?
What is the difference between isotonic and isometric muscle contractions?
What is the difference between isotonic and isometric muscle contractions?
Which of the following is a characteristic of innate immunity?
Which of the following is a characteristic of innate immunity?
Which of the following is NOT one of the four primary tissue types found in the human body?
Which of the following is NOT one of the four primary tissue types found in the human body?
Which of the following is a type of genetic mutation that involves the insertion or deletion of one or more nucleotides in a DNA sequence?
Which of the following is a type of genetic mutation that involves the insertion or deletion of one or more nucleotides in a DNA sequence?
Which of the following describes the process of osmosis?
Which of the following describes the process of osmosis?
Which of the following is a chemical property of a substance?
Which of the following is a chemical property of a substance?
Which statement best defines the difference between a physical change and a chemical change?
Which statement best defines the difference between a physical change and a chemical change?
During embryonic development, which of the following germ layers forms the nervous system?
During embryonic development, which of the following germ layers forms the nervous system?
What is the primary pigment responsible for photosynthesis in plants?
What is the primary pigment responsible for photosynthesis in plants?
Which of the following is an example of an exothermic reaction?
Which of the following is an example of an exothermic reaction?
Which of the following statements is true regarding vaccines?
Which of the following statements is true regarding vaccines?
What is the function of ribosomes in a cell?
What is the function of ribosomes in a cell?
Emphysema caused by damage to alveoli from toxins and pollutants is likely to result in the body having difficulty performing which of the following actions?
Emphysema caused by damage to alveoli from toxins and pollutants is likely to result in the body having difficulty performing which of the following actions?
For which of the following reasons does a chloride ion have a negative charge?
For which of the following reasons does a chloride ion have a negative charge?
Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia?
Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia?
The triple point of a substance is the temperature and pressure at which the substance exists as which of the following?
The triple point of a substance is the temperature and pressure at which the substance exists as which of the following?
A patient goes to the doctor with a cold and sore throat and asks for antibiotics. The doctor refuses to prescribe antibiotics to the patient because the illness is caused by which of the following pathogens?
A patient goes to the doctor with a cold and sore throat and asks for antibiotics. The doctor refuses to prescribe antibiotics to the patient because the illness is caused by which of the following pathogens?
Which of the following is an efferent neuron that is responsible for releasing a neurotransmitter that stimulates a muscle cell to contract?
Which of the following is an efferent neuron that is responsible for releasing a neurotransmitter that stimulates a muscle cell to contract?
Which of the following actions allows for repolarization of a neuron?
Which of the following actions allows for repolarization of a neuron?
Which of the following structures is an exocrine gland?
Which of the following structures is an exocrine gland?
Which of the following classes of biological molecules includes enzymes?
Which of the following classes of biological molecules includes enzymes?
An individual suffers severe blunt trauma to the thoracic cavity. Which of the following organs are at greatest risk from this injury?
An individual suffers severe blunt trauma to the thoracic cavity. Which of the following organs are at greatest risk from this injury?
Flashcards
What are the three types of salivary glands?
What are the three types of salivary glands?
The three types of salivary glands are the parotid, sublingual, and submandibular glands, located in the roof of the mouth, cheeks, and under the jawbone, respectively.
What is the diaphragm?
What is the diaphragm?
The diaphragm is a dome-shaped muscle that plays a key role in breathing.
What is the epididymis?
What is the epididymis?
The epididymis is responsible for sperm maturation.
How does calcium affect muscle contraction?
How does calcium affect muscle contraction?
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What's the difference between isotonic and isometric contractions?
What's the difference between isotonic and isometric contractions?
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What are the two main parts of the nervous system?
What are the two main parts of the nervous system?
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What are ribosomes responsible for?
What are ribosomes responsible for?
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What does tRNA do?
What does tRNA do?
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What is the cytoskeleton made of?
What is the cytoskeleton made of?
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What is the name for the process that copies DNA into RNA?
What is the name for the process that copies DNA into RNA?
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What is a frameshift mutation?
What is a frameshift mutation?
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What genetic disorder is caused by an extra chromosome 21?
What genetic disorder is caused by an extra chromosome 21?
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What is the molecular formula for water?
What is the molecular formula for water?
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What does the atomic number tell us about an atom?
What does the atomic number tell us about an atom?
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Why is water a good solvent?
Why is water a good solvent?
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What is a control group?
What is a control group?
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What is a dependent variable?
What is a dependent variable?
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What does insulin do?
What does insulin do?
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How do vaccines work?
How do vaccines work?
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What is the main function of erythrocytes?
What is the main function of erythrocytes?
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What is the name of the heart valve that separates the left atrium and left ventricle?
What is the name of the heart valve that separates the left atrium and left ventricle?
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What is a unique characteristic of viruses?
What is a unique characteristic of viruses?
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What is the pleura?
What is the pleura?
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What does the pulmonary vein carry?
What does the pulmonary vein carry?
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Where are the tibia and fibula located?
Where are the tibia and fibula located?
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What does the myelin sheath do?
What does the myelin sheath do?
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What are apocrine glands?
What are apocrine glands?
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Where do lipids absorbed in the small intestine enter first?
Where do lipids absorbed in the small intestine enter first?
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What causes cancer?
What causes cancer?
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What is the function of the mitochondrial inner membrane?
What is the function of the mitochondrial inner membrane?
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What are ovaries involved in?
What are ovaries involved in?
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What is the pituitary gland involved in?
What is the pituitary gland involved in?
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What are the offspring genotypes when crossing a green pod plant with a yellow pod plant?
What are the offspring genotypes when crossing a green pod plant with a yellow pod plant?
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What is the dominant trait for pea pod color?
What is the dominant trait for pea pod color?
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What are enzymes?
What are enzymes?
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What is the function of soap?
What is the function of soap?
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What is fibrinogen?
What is fibrinogen?
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What does emphysema do to the lungs?
What does emphysema do to the lungs?
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Where is the vermiform appendix located?
Where is the vermiform appendix located?
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What does the renal vein do?
What does the renal vein do?
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What does parathyroid hormone do?
What does parathyroid hormone do?
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What do the kidneys remove from the body?
What do the kidneys remove from the body?
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What does the digestive system do to proteins?
What does the digestive system do to proteins?
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How is the pH of a solution calculated?
How is the pH of a solution calculated?
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Why do coastal areas have less extreme temperature changes?
Why do coastal areas have less extreme temperature changes?
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What happens to an atom when a proton is emitted?
What happens to an atom when a proton is emitted?
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Study Notes
Here are the study notes for the TEAS 7 Science Practice Test:
Human Body Systems
- The three types of salivary glands are parotid, sublingual, and submandibular glands located in the roof of the mouth, cheeks, and under the jawbone, respectively.
- The diaphragm is the dome-shaped muscle that plays a key role in breathing.
- The epididymis is responsible for sperm maturation.
Muscular System
- Calcium binds to tropomyosin to expose the myosin-binding sites on actin during muscle contraction.
- Isotonic contractions produce movement while isometric contractions produce no movement.
Nervous System
- The two major parts of the nervous system are the peripheral nervous system and central nervous system.
- The primary pigment responsible for photosynthesis in plants is chlorophyll a.
Cellular Biology
- Ribosomes are responsible for synthesizing proteins in the cell.
- Transfer RNA (tRNA) carries amino acids to the ribosome during protein synthesis.
- The cytoskeleton of a cell is comprised of proteins.
Genetics
- DNA is copied into RNA through the process of transcription.
- A frameshift mutation involves the insertion or deletion of one or more nucleotides in a DNA sequence.
- A genetic disorder caused by the presence of an extra chromosome 21 is Down syndrome.
Chemistry
- The molecular formula for water is H2O.
- The atomic number of an atom is the number of protons in the nucleus.
- The polarity of water molecules explains its solvent abilities for certain substances.
Scientific Inquiry
- A control group is a group that is not exposed to the variable being tested.
- A dependent variable is the variable being measured or observed in an experiment.
Human Health
- Insulin regulates blood sugar levels in the human body.
- Vaccines work by exposing the individual to a weakened or inactivated form of the pathogen.
Anatomy and Physiology
- The primary physiological function of erythrocytes is to transport oxygen to body tissues.
- The heart valve that separates the left atrium and left ventricle is the mitral valve.
Microbiology
- Viruses lack their own metabolic pathways and can only reproduce inside of a host cell.
Let me know if you'd like me to clarify or expand on any of these points!Here are the study notes for the text:
- Particles and Intermolecular Forces*
- Particles have a decrease in mobility
- Particles move closer together
- Intermolecular forces between particles become stronger
- Anatomy and Physiology*
- The pleura is a connective tissue sheath that covers the lung
- The pulmonary vein carries oxygenated blood
- The tibia and fibula are located in the crural region
- The myelin sheath performs insulation for nerve cells
- Apocrine glands are part of the integumentary system and secrete pheromones
- Lipids absorbed in the small intestine enter lacteal vessels first
- Cellular Biology*
- Cancer results from a genetic mutation that leads to uncontrolled cell division
- Mitochondrial inner membrane has the same function as the thylakoid membrane in chloroplasts
- Ovaies are involved in regulating milk production following childbirth
- The pituitary gland is involved in regulating milk production following childbirth
- Genetics*
- A cross between a plant with green pods and a plant with yellow pods results in offspring with a 50% chance of having green pods and 50% chance of having yellow pods
- In pea plants, green pod color (G) is dominant to yellow pod color (g)
- Biochemistry*
- Enzymes are biological molecules that speed up chemical reactions
- Soap is an emulsifier that helps bond oil and water
- Fibrinogen is a protein present in blood plasma
- Physiology*
- Emphysema is a disease that disrupts gas exchange in the lungs
- The vermiform appendix extends from the region of the large intestine known as the cecum
- The renal vein drains oxygen-depleted blood from the kidneys
- Parathyroid hormone regulates blood calcium levels
- The kidneys remove nitrogenous waste from the body
- The digestive system breaks down proteins into amino acids
- Chemistry*
- The pH of a solution is calculated using the equation pH = -log (H+)
- Water has a high specific heat capacity, which helps explain why coastal areas experience less dramatic temperature changes during the day
- The atomic mass and atomic number of an atom change when a proton is emitted
Let me know if you'd like me to help with anything else!### Energy Drinks and Running
- Researchers conclude that energy drinks increase the speed of running based on collected results.
Supporting the Conclusion
- Repeating the experiment with the same conditions, but using 300 men (Option A) would help support the conclusion.
- Giving half of the women water and the other half the energy drink (Option B) would also help support the conclusion by providing a control group.
- Giving the women two different energy drinks (Option C) would not directly support the conclusion as it would introduce a new variable.
- Changing the running distance (Option D) would not directly support the conclusion as it would alter the original experiment's conditions.
Mount Everest Climb
- An experienced mountaineer is retracing the same route as a fatal 1924 expedition to climb Mount Everest.
- The scientific purpose of this climb is to assess why the earlier expedition failed (Option B).
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Description
Assess your knowledge of science concepts with this 39-question practice test, covering topics like human anatomy and biology.
