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🇮🇳 RRB Group D · flashcards
RRB Group D General Science - Life Sciences Flashcards
51 question-and-answer cards covering General Science - Life Sciences as it is examined in RRB Group D. 24 of them are printed below, taken from across the deck — no signup, no paywall on the preview.
24 sample cards from the General Science - Life Sciences deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
Name the three types of blood vessels and their basic roles.
Arteries (carry blood away from the heart), veins (carry blood to the heart), and capillaries (site of exchange between blood and tissues).
Which blood cells carry oxygen, and which pigment enables this?
Red blood cells (erythrocytes) carry oxygen using the pigment hemoglobin.
What is the main function of the excretory system in humans?
To remove metabolic wastes (e.g. urea) and excess water/salts from the body, mainly through urine.
What is the basic functional unit of the kidney?
The nephron.
What is the basic structural and functional unit of the nervous system?
The neuron (nerve cell).
What are the two main divisions of the human nervous system?
The central nervous system (brain and spinal cord) and the peripheral nervous system (nerves).
Which part of the brain controls balance and coordination of muscular activity?
The cerebellum.
What is the function of the endocrine system?
It secretes hormones directly into the blood to regulate body functions such as growth, metabolism, and reproduction.
Which gland is called the 'master gland' of the endocrine system?
The pituitary gland, because it controls other endocrine glands.
Which hormone regulates blood sugar, and which gland secretes it?
Insulin, secreted by the pancreas; it lowers blood glucose levels.
What is the difference between sexual and asexual reproduction?
Sexual reproduction involves two parents and the fusion of gametes (offspring vary genetically); asexual reproduction involves one parent and produces genetically identical offspring.
What are the male and female reproductive cells (gametes) in humans?
Sperm (male) and ovum/egg (female).
What is the function of the human skeletal system?
It provides support and shape, protects internal organs, allows movement (with muscles), and produces blood cells in the bone marrow.
How many bones are there in the adult human body?
206 bones.
What is a balanced diet?
A diet containing all nutrients (carbohydrates, proteins, fats, vitamins, minerals, water, and fiber) in the right proportions for good health.
Which nutrients are the body's main source of energy?
Carbohydrates (and fats as a secondary/stored energy source).
Which deficiency disease is caused by lack of Vitamin C, and which by lack of Vitamin D?
Vitamin C deficiency causes scurvy; Vitamin D deficiency causes rickets (in children).
What is a pathogen?
A disease-causing microorganism such as a bacterium, virus, fungus, or protozoan.
Name the pathogen type causing malaria and the disease caused by the bacterium responsible for tuberculosis.
Malaria is caused by a protozoan (Plasmodium, spread by Anopheles mosquito); tuberculosis (TB) is caused by a bacterium (Mycobacterium tuberculosis).
What is immunity, and what are its two main types?
Immunity is the body's ability to resist or fight disease. The two main types are innate (natural, present from birth) and acquired (adaptive, developed after exposure).
How does a vaccine produce immunity?
A vaccine introduces a weakened/killed pathogen or its antigen, stimulating the immune system to make antibodies and memory cells so the body can fight future infection.
What is heredity, and what molecule carries genetic information?
Heredity is the transmission of traits from parents to offspring; the molecule that carries genetic information is DNA (genes).
Who is known as the 'Father of Genetics' and what did he study?
Gregor Mendel; he studied inheritance of traits in pea plants and formulated the laws of inheritance (dominance, segregation).
What is evolution, and who proposed the theory of natural selection?
Evolution is the gradual change in species over generations; the theory of evolution by natural selection ('survival of the fittest') was proposed by Charles Darwin.
What this deck covers
The General Science - Life Sciences deck follows the RRB Group D General Science - Life Sciences syllabus — 4 chapters and 14 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 12.8 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 97 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.
General Science - Life Sciences flashcards FAQ
How many General Science - Life Sciences flashcards are in this RRB Group D deck?
51 cards. This page previews 24 of them, sampled evenly across the deck so you can judge the difficulty before installing anything.
Are these RRB Group D flashcards free?
Yes. The preview here is free to read with no signup, and the full 51-card deck is free inside the Examius app.
What do the General Science - Life Sciences cards cover?
They follow the RRB Group D General Science - Life Sciences syllabus — 4 chapters and 14 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.