Formula sheets, the key method steps for every topic and 16 practice problems, with full solutions at the back.
“The warranty covers repairs for two years from the date of purchase. It does not cover damage caused by dropping the device or by water.” Which repair would the warranty cover?
The author writes: “It is tempting to think that more vitamins are always better. Yet some vitamins, such as vitamin A, can build up in the body and become harmful in large doses.” What assumption does the author challenge?
A circle has a diameter of 26 ft. Using π ≈ 3.14, find its area A.
The pie chart shows how a hospital’s 200 employees are split between departments A to D. How many employees x work in department C?
Which nerve supplies the diaphragm?
Which coronary artery most often supplies the sinoatrial (SA) node?
Which hormone increases water reabsorption in the collecting ducts of the kidney?
Why does ketoacidosis typically develop in untreated type 1 diabetes but rarely in type 2?
By which process does oxygen enter a cell and carbon dioxide leave it?
A karyotype shows 45 chromosomes, with a single X chromosome and no Y. Which condition is this?
What is the percent by mass of salt in a solution made from 15 g of salt and 135 g of water?
Hydrogen peroxide fizzes when poured on a cut because an enzyme in blood breaks it down. What gas is produced, and what type of reaction is it?
Choose the correct word: “Please ___ your hand if you have a question.”
Which sentence correctly uses an introductory phrase?
Choose the meaning of the word in bold: “The nurse noted a deficit in the patient’s memory.”
What does the term cardiomyopathy mean?
Answer: B · A fault that appears after one year of normal use
A fault within two years from normal use is covered. Drops and water damage are excluded, and three years is beyond the time limit.
Answer: B · That taking more vitamins is always healthy
The author questions the belief that more vitamins are always better, pointing out that some can be harmful in excess.
Answer: A = 530.7 ft²
Perimeter, area and volume: the perimeter is the distance around a shape (rectangle: 2l + 2w). Area is measured in square units: rectangle l × w, triangle ½ × base × height, circle π·r². The circumference of a circle is π·d = 2π·r. Volume is in cubic units: box l × w × h, cylinder π·r²·h. Use the value of π the question gives.
Answer: x = 40
Reading charts and tables: read the title, the categories and the scale first. On a bar chart or line graph, follow the top of the bar or the point across to the vertical axis; every gridline is one step of the scale. A pie chart shows parts of a whole: a sector of p% stands for p% of the total and has an angle of p% of 360°.
Answer: D · Phrenic nerve
The phrenic nerve (roots C3–C5) is the motor supply to the diaphragm. High cervical cord injury above C3 therefore stops spontaneous breathing.
Answer: D · Right coronary artery
The SA nodal artery arises from the right coronary artery in roughly 60% of people and from the circumflex artery in the rest.
Answer: B · Antidiuretic hormone (ADH)
ADH (vasopressin) from the posterior pituitary inserts aquaporin-2 channels, making the collecting duct permeable to water and concentrating the urine.
Answer: A · Even low insulin levels suppress lipolysis and ketogenesis
Insulin strongly inhibits lipolysis and hepatic ketone production. In type 1 there is almost no insulin, so fatty acids flood the liver and ketones build up.
Answer: D · Simple diffusion through the lipid bilayer
O₂ and CO₂ are small, nonpolar molecules that pass directly through the lipid bilayer from high to low concentration. No carrier protein and no energy are needed.
Answer: C · Turner syndrome
Turner syndrome (45,X) affects females who have only one X chromosome. Klinefelter syndrome (47,XXY) affects males with an extra X, and Down syndrome is trisomy 21.
Answer: C · 10%
The solution has 15 + 135 = 150 g, so the salt is 15/150 × 100 = 10%. Dividing by the water alone gives 11%.
Answer: C · Oxygen, in a decomposition reaction
The enzyme catalase catalyses 2H₂O₂ → 2H₂O + O₂. One compound breaking into simpler substances is decomposition, and the bubbles are oxygen.
Answer: B · raise
“Raise” takes an object (your hand). “Rise” means to go up by itself and takes no object, as in “The sun rises.”
Answer: C · After reviewing the chart, the nurse called the doctor.
In the second sentence it sounds as if the doctor reviewed the chart. The doer (the nurse) must follow the introductory phrase.
Answer: A · A shortfall or loss of ability
A deficit is a lack or impairment, such as a neurological deficit after a stroke.
Answer: D · A disease of the heart muscle
Cardiomyopathy is a disease of the heart muscle that makes it harder for the heart to pump.
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