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
Which structure connects the middle ear to the nasopharynx?
- AExternal acoustic meatus
- BAuditory (Eustachian) tube
- CNasolacrimal duct
- DCochlear duct
2.Human anatomyHard
A lesion of the left optic tract causes which visual field defect?
- ARight homonymous hemianopia
- BBlindness in the left eye only
- CLeft homonymous hemianopia
- DBitemporal hemianopia
3.Human physiologyMedium
During contraction of a skeletal muscle sarcomere, which band stays the same length?
- AI band
- BA band
- CThe whole sarcomere
- DH zone
4.Human physiologyHard
In primary adrenal insufficiency (Addison's disease), which combination is expected?
- ALow sodium, high potassium and high ACTH
- BHigh sodium, high potassium and high ACTH
- CLow sodium, low potassium and low ACTH
- DHigh sodium, low potassium and low ACTH
5.Biology for nursing entrance examsMedium
What is the difference between an epidemic and a pandemic?
- AA pandemic affects only one town
- BA pandemic spreads across many countries or continents
- CAn epidemic is caused only by bacteria
- DAn epidemic affects the whole world at once
6.Biology for nursing entrance examsHard
Scientists put a human gene into bacteria to make a protein. Why do they use a DNA copy made from the mature mRNA instead of the gene taken straight from human DNA?
- ABacteria have no ribosomes
- BHuman DNA has no start codons
- CBacteria cannot remove introns
- DBacteria cannot read human codons
7.Chemistry for nursing entrance examsMedium
Which property stays the same whether you have a small sample or a large sample of a pure substance?
- AMass
- BVolume
- CDensity
- DTotal heat content
8.Chemistry for nursing entrance examsHard
An element has the electron arrangement 2, 8, 8, 2. Where is it on the periodic table?
- AGroup 2, period 2
- BGroup 2, period 4
- CGroup 4, period 2
- DGroup 8, period 2
3Solutions
1.Human anatomy
Answer: B · Auditory (Eustachian) tube
Why this is the answer
The auditory tube equalises air pressure on both sides of the eardrum. In children it is shorter and more horizontal, which favours middle ear infections.
B · Auditory (Eustachian) tube
2.Human anatomy
Answer: A · Right homonymous hemianopia
Why this is the answer
The left optic tract carries fibres from the left half of each retina, which see the right visual field. Its lesion causes loss of the right half of the field in both eyes.
A · Right homonymous hemianopia
3.Human physiology
Answer: B · A band
Why this is the answer
In the sliding filament model, filaments slide past each other without shortening. The A band (myosin length) stays the same while the I band and H zone shorten.
4.Human physiology
Answer: A · Low sodium, high potassium and high ACTH
Why this is the answer
Loss of aldosterone causes sodium loss and potassium retention. Low cortisol removes negative feedback, so ACTH rises and can cause skin pigmentation.
A · Low sodium, high potassium and high ACTH
5.Biology for nursing entrance exams
Answer: B · A pandemic spreads across many countries or continents
Why this is the answer
An epidemic is a sharp rise in cases in a particular region or population. A pandemic is an epidemic that has spread over a very wide area, across several countries or continents.
B · A pandemic spreads across many countries or continents
6.Biology for nursing entrance exams
Answer: C · Bacteria cannot remove introns
Why this is the answer
Human genes contain introns, which bacteria cannot splice out. A copy made from mature mRNA (cDNA) contains only the exons, so the bacteria can translate it correctly using the universal genetic code.
C · Bacteria cannot remove introns
7.Chemistry for nursing entrance exams
Answer: C · Density
Why this is the answer
Density is an intensive property: it depends on the substance, not the amount. Mass, volume and total heat content are extensive properties that grow with sample size.
8.Chemistry for nursing entrance exams
Answer: B · Group 2, period 4
Why this is the answer
Four occupied shells means period 4, and 2 outer electrons means group 2. This element has 20 electrons, so it is calcium.
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.