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UPSC CSE Prelims Biology & Human Health Flashcards

Master 119 biology & human health concepts for the UPSC CSE Prelims.

Question

Complete the statement regarding Tuberculosis (TB):


Tuberculosis is caused by the bacterium and is primarily prevented by the vaccine.

Question

Consider the following statements regarding Cholera:

  1. It is a viral infection transmitted primarily through contaminated water.
  2. It causes severe, acute watery diarrhea that can lead to rapid dehydration. Which of the statements given above is/are correct?

Question

Consider the following statements regarding Vitamin A:

  1. Its chemical name is Retinol.
  2. Its deficiency causes Xerophthalmia and Night Blindness.
  3. It is a water-soluble vitamin.

Which of the statements given above is/are correct?


Question

Identify the correct vitamin, chemical name, and deficiency disease.


The deficiency of Vitamin , chemically known as , causes a neurological and cardiovascular disorder known as .

Question

A dietary lack of iron primarily impairs the formation of which oxygen-carrying blood protein, and what is the resulting clinical condition called?


Question

Complete the statement regarding iodine and human health:


Iodine is essential for the synthesis of hormones. A severe deficiency in dietary iodine commonly manifests as an enlargement of the gland, known as .

Question

Compare the molecular structures and base pairings of DNA and RNA:


In nucleic acids, DNA is typically a structure with base pairing where Adenine (A) pairs with . In contrast, RNA is usually single-stranded and replaces that specific base with .

Question

Arrange the following biological processes to represent the 'Central Dogma of Molecular Biology' (the standard flow of genetic information):


Tap tiles below to build the sentence...

Question

Complete the statement regarding human blood groups:


In the ABO and Rh blood group systems, the universal blood donor is , while the universal recipient is .

Question

Which of the following are types of White Blood Cells (leukocytes) found in the human body?

  1. Neutrophils
  2. Lymphocytes
  3. Erythrocytes
  4. Eosinophils

Select the correct answer code:


Question

Complete the characteristics distinguishing cellular structures:


cells lack a membrane-bound nucleus, whereas cells possess a true nucleus. Organisms such as bacteria and archaea are classified as .

Question

Consider the following statements regarding Mitochondria:

  1. It is commonly known as the powerhouse of the cell.
  2. It lacks its own DNA and relies entirely on nuclear DNA for replication.
  3. It is the primary site for oxidative phosphorylation.

Which of the statements given above is/are correct?


Question

Consider the following statements regarding the Ebola virus disease:

  1. It is a severe viral hemorrhagic fever.
  2. Fruit bats are considered the natural host of the virus. Which of the statements given above is/are correct?

Question

Complete the statement regarding the Nipah virus:


The Nipah virus is a zoonotic paramyxovirus primarily hosted by and has caused recurrent, high-mortality outbreaks in the Indian state of .

Question

Consider the following statements regarding C3 photosynthesis:

  1. It is the most common type of photosynthesis in plants.
  2. The primary carbon dioxide acceptor is the enzyme RuBisCO.
  3. It efficiently avoids photorespiration.

Which of the statements given above is/are correct?


Question

Complete the mechanism of C4 photosynthesis:


In C4 plants, initial CO2 fixation is catalyzed by in the cells, while the standard Calvin cycle operates deeply within the cells.

Question

Consider the following statements regarding Hepatitis A:

  1. It is primarily transmitted through the fecal-oral route via contaminated food and water.
  2. It frequently progresses to chronic, lifelong liver disease.

Which of the statements given above is/are correct?


Question

Identify the genetic nature of the Hepatitis B virus compared to other hepatitis strains.


Hepatitis B is unique among human hepatitis viruses because its genome consists of , whereas Hepatitis A, C, D, and E are all viruses.

Question

Identify the mechanisms of Antimicrobial Resistance (AMR) based on their cellular action:


Bacteria producing beta-lactamase survive via , whereas those pumping antibiotics out of the cell use . Altering the binding site of the drug (e.g., mutated PBPs) is known as .

Question

Consider the following statements regarding Horizontal Gene Transfer (HGT) which spreads resistance among bacteria:

  1. Conjugation involves the direct transfer of DNA via a pilus.
  2. Transduction occurs when a bacteriophage (virus) transfers genetic material. Which of the statements given above is/are correct?

Question

Complete the facts regarding India's Universal Immunisation Programme (UIP):


Launched in , the UIP is the largest such program in the world and provides free vaccines against vaccine-preventable diseases.

Question

Consider the following statements about Mission Indradhanush:

  1. It was launched in 2014 to accelerate full immunisation coverage.
  2. Its target beneficiaries are exclusively children under 2 years of age.

Which of the statements given above is/are correct?


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