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🇮🇳 Military Nursing Service (MNS) Entrance · flashcards
Military Nursing Service (MNS) Entrance Biology Flashcards
52 question-and-answer cards covering Biology as it is examined in Military Nursing Service (MNS) Entrance. 24 of them are printed below, taken from across the deck — no signup, no paywall on the preview.
24 sample cards from the Biology deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
What is the role of hemoglobin in respiration?
Hemoglobin in red blood cells binds and transports oxygen (as oxyhemoglobin) from lungs to tissues and helps carry CO2 back.
What is the structural and functional unit of the kidney?
The nephron.
Name the three main processes of urine formation in the nephron.
Glomerular filtration, tubular reabsorption, and tubular secretion.
What are the three basic parts of a neuron?
Dendrites (receive signals), cell body/soma, and axon (transmits signals).
What is a reflex arc?
The neural pathway of a reflex action: receptor → sensory (afferent) neuron → CNS (spinal cord) → motor (efferent) neuron → effector, allowing an involuntary rapid response.
Which gland is called the 'master gland' and why?
The pituitary gland, because it secretes hormones that regulate many other endocrine glands.
Which hormone regulates blood glucose by lowering it, and which gland secretes it?
Insulin, secreted by the beta cells of the islets of Langerhans in the pancreas.
What are the two main types of muscle proteins responsible for contraction?
Actin (thin filaments) and myosin (thick filaments).
What is the difference between spermatogenesis and oogenesis in terms of gamete number?
Spermatogenesis produces 4 functional sperm from one primary spermatocyte; oogenesis produces 1 functional ovum (and 2-3 polar bodies) from one primary oocyte.
What is the function of the placenta in human pregnancy?
It allows exchange of nutrients, gases, and wastes between mother and fetus and secretes hormones (e.g., hCG, progesterone) to maintain pregnancy.
State Mendel's Law of Segregation.
During gamete formation, the two alleles of a gene separate (segregate) so that each gamete carries only one allele of each gene.
State Mendel's Law of Independent Assortment.
Alleles of different genes assort independently of one another during gamete formation (applies to genes on different chromosomes).
What phenotypic ratio results from a monohybrid cross in the F2 generation (complete dominance)?
3:1 (dominant to recessive phenotype).
What is the dihybrid F2 phenotypic ratio in a Mendelian cross?
9:3:3:1.
What are the base-pairing rules in DNA?
Adenine pairs with Thymine (A-T) by two hydrogen bonds; Guanine pairs with Cytosine (G-C) by three hydrogen bonds.
What is the central dogma of molecular biology?
Genetic information flows from DNA → RNA (transcription) → protein (translation).
Why is DNA replication described as semiconservative?
Each new DNA molecule retains one original (parental) strand and one newly synthesized strand.
State the main idea of Darwin's theory of natural selection.
Individuals with favourable heritable variations survive and reproduce more successfully ('survival of the fittest'), so advantageous traits accumulate over generations.
What are homologous organs and give an example?
Organs with similar structure/origin but different functions, indicating common ancestry (divergent evolution); e.g., forelimbs of humans, whales, and bats.
Differentiate active immunity from passive immunity.
Active immunity is produced by one's own immune response to antigens (e.g., infection or vaccination) and is long-lasting; passive immunity is acquired ready-made antibodies (e.g., from mother or antiserum) and is short-lived.
What is the causative organism of malaria and its vector?
Plasmodium (a protozoan); transmitted by the female Anopheles mosquito.
What microbe and process are used to produce curd/yoghurt from milk?
Lactic acid bacteria (Lactobacillus) ferment lactose into lactic acid, coagulating milk proteins.
Define an ecological food chain and trophic level.
A food chain is the linear transfer of energy from producers to consumers; a trophic level is each feeding step (producer, primary consumer, secondary consumer, etc.).
What does the 10 percent law (Lindeman) state about energy flow in an ecosystem?
Only about 10% of the energy at one trophic level is transferred to the next; the rest is lost mainly as heat (metabolism).
What this deck covers
The Biology deck follows the Military Nursing Service (MNS) Entrance Biology syllabus — 5 chapters and 17 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 10.4 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 108 characters, which is long enough to carry the reasoning and short enough to say out loud.
A deck like this earns its keep on the second and third pass. Read the syllabus first so you know the shape of the subject, then use the cards to find the specific facts that have not stuck.
Biology flashcards FAQ
How many Biology flashcards are in this Military Nursing Service (MNS) Entrance deck?
52 cards. This page previews 24 of them, sampled evenly across the deck so you can judge the difficulty before installing anything.
Are these Military Nursing Service (MNS) Entrance flashcards free?
Yes. The preview here is free to read with no signup, and the full 52-card deck is free inside the Examius app.
What do the Biology cards cover?
They follow the Military Nursing Service (MNS) Entrance Biology syllabus — 5 chapters and 17 topics — so the questions track what is actually examinable.
How should I use these flashcards?
Read the syllabus first so you know the shape of the subject, then drill the deck. Examius schedules each card with spaced repetition, so cards you keep missing come back sooner and ones you know drift further apart.