1Formulas and methods
Biology for nursing entrance exams
Method
- Name the topic of the question: cell parts, transport, division, DNA and protein synthesis, inheritance, biomolecules, microorganisms or experimental design.
- Recall the key rule: A–T and G–C, diffusion from high to low, water moves towards more solute, mitosis keeps and meiosis halves the chromosome number.
- For crosses, write the parents’ genotypes, list the gametes and fill a Punnett square before counting.
- For experiments, label the independent, dependent and controlled variables, and ask whether the evidence supports or only suggests the conclusion.
- Check each option against the question asked, not just whether it is a true statement.
Chemistry for nursing entrance exams
Method
- Identify what is given and asked: particles, a formula, a state change, a concentration, a pH or a mass.
- Use the periodic table: the atomic number gives protons, the group gives valence electrons and the usual ion charge.
- Balance equations with coefficients only, element by element, oxygen and hydrogen last.
- For amounts, go mass → moles → mole ratio → moles → mass, and for solutions use M = mol/L and C₁V₁ = C₂V₂.
- Remember that pH is logarithmic: one unit is a factor of 10.
2Practice problems
1.Human anatomyMedium
In which structure do sperm mature and get stored after leaving the testis?
- AEpididymis
- BSeminal vesicle
- CProstate gland
- DSeminiferous tubules
2.Human anatomyHard
A patient has a drooping eyelid, a dilated pupil and an eye that rests "down and out". Which nerve is most likely damaged?
- AOculomotor nerve (III)
- BAbducens nerve (VI)
- COptic nerve (II)
- DTrochlear nerve (IV)
3.Human physiologyMedium
Which receptors respond mainly to a fall in arterial oxygen levels?
- ABaroreceptors in the carotid sinus
- BStretch receptors in the lungs
- CPeripheral chemoreceptors in the carotid and aortic bodies
- DCentral chemoreceptors in the medulla
4.Human physiologyHard
Which substance's clearance is used as the gold standard to measure glomerular filtration rate?
- AInulin
- BCreatinine
- CUrea
- DGlucose
5.Biology for nursing entrance examsMedium
A patient's heart rate is measured four times: 70, 72, 74 and 80 beats per minute. What is the mean?
- A72 beats per minute
- B74 beats per minute
- C73 beats per minute
- D80 beats per minute
6.Biology for nursing entrance examsHard
A restriction enzyme cuts at three sites in a linear piece of DNA. How many fragments are produced?
- A6
- B4
- C3
- D2
7.Chemistry for nursing entrance examsMedium
Drops of water form on the outside of a glass of ice water. Where does this water come from?
- AThe glass releases water when it gets cold
- BThe ice evaporates through the glass
- CWater vapour in the air condenses on the cold glass
- DWater leaks through tiny holes in the glass
8.Chemistry for nursing entrance examsHard
What is (8 × 10⁶) ÷ (2 × 10⁻²)?
- A4 × 10⁻¹²
- B4 × 10⁴
- C4 × 10⁸
- D16 × 10⁴
3Solutions
1.Human anatomy
Answer: A · Epididymis
Why this is the answer
Sperm are made in the seminiferous tubules and then mature and are stored in the epididymis before passing into the ductus deferens.
2.Human anatomy
Answer: A · Oculomotor nerve (III)
Why this is the answer
The oculomotor nerve supplies most eye muscles, levator palpebrae and the pupil constrictor. Lesion leaves lateral rectus and superior oblique unopposed, so the eye goes down and out.
A · Oculomotor nerve (III)
3.Human physiology
Answer: C · Peripheral chemoreceptors in the carotid and aortic bodies
Why this is the answer
The carotid and aortic bodies detect low PaO₂ (and also high CO₂ and H⁺). The central chemoreceptors respond to CO₂ but not directly to oxygen.
C · Peripheral chemoreceptors in the carotid and aortic bodies
4.Human physiology
Answer: A · Inulin
Why this is the answer
Inulin is filtered freely and is not reabsorbed or secreted, so its clearance equals GFR exactly. Creatinine is slightly secreted, so it overestimates GFR a little.
5.Biology for nursing entrance exams
Answer: B · 74 beats per minute
Why this is the answer
70 + 72 + 74 + 80 = 296, and 296 ÷ 4 = 74 beats per minute.
6.Biology for nursing entrance exams
Answer: B · 4
Why this is the answer
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.
7.Chemistry for nursing entrance exams
Answer: C · Water vapour in the air condenses on the cold glass
Why this is the answer
Water vapour in the air touching the cold glass cools, loses energy and condenses into liquid droplets. Dew forms on grass the same way.
C · Water vapour in the air condenses on the cold glass
8.Chemistry for nursing entrance exams
Answer: C · 4 × 10⁸
Why this is the answer
8 ÷ 2 = 4, and 10⁶ ÷ 10⁻² = 10⁶⁻⁽⁻²⁾ = 10⁸. So the answer is 4 × 10⁸. Subtracting a negative exponent adds to it.
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.