Formula sheets, the key method steps for every topic and 16 practice problems, with full solutions at the back.
“The lungs contain millions of tiny air sacs called alveoli. Here, oxygen passes into the blood, and carbon dioxide passes out to be breathed away.” What happens in the alveoli?
“Unlike her older brother, who argued about everything, Mina listened carefully, asked questions and only then shared her view.” Which word best describes Mina?
Work out 1 1/3 × 1/4. Click the answer in lowest terms.
After a 30% pay rise, a nursing assistant earns $136.5 a week. What was the weekly pay x before the rise, in dollars?
In which part of the nephron does most reabsorption of water and sodium take place?
In the fetus, the ductus arteriosus connects the pulmonary trunk to the aorta. What does it become after birth?
Since action potentials are all-or-none, how does a neuron signal a stronger stimulus?
Why does left ventricular failure cause pulmonary oedema?
Dolly the sheep was cloned by putting the nucleus of an adult body cell into an egg cell whose nucleus had been removed. Whose nuclear DNA did Dolly have?
A restriction enzyme cuts at three sites in a linear piece of DNA. How many fragments are produced?
Which measurement has three significant figures?
Balance __Fe + __O₂ → __Fe₂O₃ with the smallest whole numbers. What are the coefficients?
Which word is written correctly with a hyphen?
In a short academic essay, where is the thesis statement usually placed?
Choose the meaning of the word in bold: “The nurse noted a deficit in the patient’s memory.”
Which word is the opposite of flexion?
Answer: D · Oxygen and carbon dioxide are exchanged.
In the alveoli, oxygen moves into the blood and carbon dioxide moves out. This swap is called gas exchange.
Answer: D · Thoughtful
Listening carefully and asking questions before giving a view shows she is thoughtful. She does speak, so “silent” is wrong.
Answer: 1/3
Multiplying and dividing fractions: first turn mixed numbers into improper fractions (2 1/3 = 7/3). To multiply, multiply the numerators and the denominators. To divide, keep the first fraction, change ÷ to ×, and flip the second fraction (multiply by its reciprocal). Cancel common factors and write the result in lowest terms as a mixed number.
Answer: x = 105 $
Reverse percentages: when a value has already been increased or decreased by a percent, the new value is a percent of the original, not the other way round. After a 20% discount the price is 80% of the original, so original = new price ÷ 0.80. Never add the 20% back on to the new price.
Answer: C · Proximal convoluted tubule
The proximal convoluted tubule reabsorbs about two thirds of the filtered sodium and water, plus nearly all glucose and amino acids.
Answer: B · Ligamentum arteriosum
The ductus arteriosus closes after birth and becomes the ligamentum arteriosum. The foramen ovale becomes the fossa ovalis and the ductus venosus becomes the ligamentum venosum.
Answer: D · By firing action potentials more often
Stimulus strength is coded by the frequency of action potentials and by how many neurons are recruited, not by their amplitude.
Answer: A · Raised left atrial pressure increases pulmonary capillary hydrostatic pressure
A failing left ventricle backs up pressure into the left atrium and pulmonary veins. High capillary hydrostatic pressure pushes fluid into the lung interstitium and alveoli.
Answer: C · The sheep that gave the body cell nucleus
In this method, called somatic cell nuclear transfer, the clone gets its nuclear DNA from the donor of the body cell. Only the small amount of mitochondrial DNA came from the egg.
Answer: B · 4
A linear molecule cut at n sites gives n + 1 pieces, so three cuts give 4 fragments. A circular plasmid cut at three sites would give only 3.
Answer: B · 0.00560
In 0.00560 the leading zeros are placeholders, while 5, 6 and the final 0 are significant. 0.0056 and 56 have two significant figures and 5.0006 has five.
Answer: A · 4, 3, 2
4Fe + 3O₂ → 2Fe₂O₃ gives 4 Fe and 6 O on each side. 2, 3, 1 has 6 O on the left but only 3 on the right.
Answer: C · self-esteem
Words formed with the prefix “self-” are normally hyphenated: self-esteem, self-care, self-control.
Answer: D · At the end of the introduction
A thesis is usually the last sentence of the introduction. It tells the reader the main claim that the body paragraphs will support.
Answer: D · A shortfall or loss of ability
A deficit is a lack or impairment, such as a neurological deficit after a stroke.
Answer: D · Extension
Flexion decreases the angle at a joint, while extension increases it, straightening the limb.
This is independent practice material. ExamProblems is not affiliated with or endorsed by the organisation that runs this exam, and the exam name is used only to describe the content. ATI TEAS is a trademark of Assessment Technologies Institute, LLC (ATI), which is not affiliated with ExamProblems and does not endorse it or vouch for its accuracy.
ExamProblems · examproblems.com/courses/teas-practice-questions