Formula sheets, the key method steps for every topic and 16 practice problems, with full solutions at the back.
“After the long drought, the first rain fell. Farmers stood in their fields with their faces turned up to the sky.” How do the farmers most likely feel?
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 pair of shoes costs $108.99. It is on sale at 15% off, and a sales tax of 5% is added to the sale price. What is the final price P? Round to the nearest cent.
On a map, 1 cm represents 10 km. Two towns are 105 km apart. How far apart x are they on the map, in centimetres?
Which is the outermost layer of the meninges?
A footballer takes a blow to the outside of the planted knee. Which combination of injuries is classically called the "unhappy triad"?
Which hormonal event triggers ovulation?
Why does left ventricular failure cause pulmonary oedema?
How does a scientific theory differ from a hypothesis?
When caring for a patient with C. difficile infection, why is hand washing with soap and water preferred over alcohol hand rub?
At STP (0 °C and 1 atm), what volume does 1 mole of an ideal gas occupy?
Why is gamma radiation used to sterilise sealed medical supplies such as syringes?
Which sentence punctuates a quotation within a quotation correctly in American style?
Which revision is the most concise without losing meaning? “In my personal opinion, I think the plan will probably work.”
Choose the meaning of the word in bold: “The unit has strict protocols for infection control.”
Choose the meaning of the word in bold: “The surgeon explained that the tumour was inoperable.”
Answer: D · Relieved
After a long drought, the rain is what the farmers needed, so standing in it with faces turned up shows relief and joy.
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: P = 97.27 $
Discounts and sales tax: a discount of d% leaves (100 − d)% of the price; a tax of t% adds t% of the discounted price. Work in that order: price × (1 − d/100), then × (1 + t/100). Round money to the nearest cent only at the end.
Answer: x = 10.5 cm
Rates and scales: speed = distance ÷ time, with the time in the unit of the answer (2 h 15 min = 2.25 h, because 15 min = 15/60 h). A map scale is a proportion: 1 cm on the map stands for a fixed distance on the ground, so multiply the map distance by it.
Answer: A · Dura mater
From outside in the meninges are dura, arachnoid and pia mater. Cerebrospinal fluid flows in the subarachnoid space between arachnoid and pia.
Answer: D · Anterior cruciate ligament, medial collateral ligament and medial meniscus
A valgus force with rotation tears the MCL, the ACL and the medial meniscus, which is firmly attached to the MCL.
Answer: D · A surge of luteinising hormone (LH)
Rising oestrogen from the dominant follicle triggers an LH surge from the anterior pituitary, which causes ovulation about a day later.
Answer: D · 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: D · It is a broad explanation backed by much tested evidence
A theory explains a wide range of observations and has survived repeated testing. It can still be revised if strong new evidence appears.
Answer: B · Alcohol does not kill its spores, but washing removes them
C. difficile spores resist alcohol. Washing with soap and running water physically removes spores from the hands, so it is used along with gloves and contact precautions.
Answer: C · 22.4 L
One mole of any ideal gas at 0 °C and 1 atm occupies 22.4 L, called the molar volume. It does not depend on which gas it is.
Answer: D · It passes through the packaging and kills microbes without making the items radioactive
Gamma rays penetrate plastic packaging and damage the DNA of microbes, killing them. Items can be sterilised after sealing, and exposure to gamma rays does not make them radioactive.
Answer: D · The nurse said, “The doctor told me, ‘Wait here.’”
In American English, the main quotation uses double quotation marks and a quotation inside it uses single marks. British publishers often reverse this: single marks outside, double inside.
Answer: C · I think the plan will probably work.
“In my personal opinion” and “I think” repeat one idea, so keeping only “I think” removes the redundancy while keeping the meaning.
Answer: C · Official procedures or rules
A protocol is an official set of rules or procedures for doing something.
Answer: C · Unable to be treated by surgery
Inoperable means that surgery cannot be used to remove or treat the problem safely.
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