NEET · Biology —

Human Health and Disease appeared 2 times across 1 year — 2.2% of Biology. This question is from Life Cycle of Plasmodium.

Year 2024 Total
Questions 2 2

The following are the stages of life cycle of Plasmodium. Arrange the stages in the proper order. A. The parasites reproduce asexually in RBCs, bursting the cells. B. The parasites reproduce asexually in liver cells, bursting the cells and releasing into blood. C. Gametocytes develop in RBCs. D. Sporozoites reach the liver through the blood. E. Female mosquito injects sporozoites into humans during bite. Choose the correct answer from the options given below:

Solution & Explanation

Related Formula

Sporozoite injection arrow Liver cells asexual reproduction arrow RBCs rupture arrow Gametocytes

Core Logic

The correct sequence of stages in the human host during Plasmodium life cycle:

  • Female Anopheles mosquito injects infectious sporozoites into human during bite (E)
  • Sporozoites reach liver cells via blood (D)
  • Parasites reproduce asexually in liver cells, bursting them and entering blood (B)
  • Parasites invade and reproduce asexually in RBCs, bursting RBCs and causing fever spikes (A)
  • Sexual stages (gametocytes) develop in RBCs (C)
Step 1: Order

The correct chronological sequence is E arrow D arrow B arrow A arrow C.

Pattern Recognition

Sees: "Plasmodium life cycle order". Shortcut: Injection (E) arrow Liver (D, B) arrow RBC (A) arrow Gametocytes (C).

Chapter Mix

Class 12 Biology: Human Health and Disease

Reference Study Guides

More Human Health and Disease Previous-Year Questions

Q157 neet_2024_05_may_morning Drugs and Their Physiological Effects
Match List I with List II:
List I (Drug)List II (Effect)
(A) Nicotine(I) Causes sense of euphoria and increased energy
(B) Morphine(II) Stimulates adrenal gland to release catecholamines into blood circulation
(C) Heroin(III) Effective sedative and painkiller
(D) Cocaine(IV) A depressant; slows down body function
Choose the correct answer from the options given below:
  • A. A-III, B-II, C-IV, D-I
  • B. A-II, B-III, C-IV, D-I
  • C. A-II, B-III, C-I, D-IV
  • D. A-III, B-II, C-I, D-IV

Solution

Related Formula

aligned Nicotine &arrow Stimulates adrenal medulla to release adrenaline/noradrenaline Morphine &arrow Potent sedative and painkiller Heroin &arrow Depressant that slows down body functions Cocaine &arrow Stimulants producing euphoria and increased energy aligned

Core Logic

Matching each drug to its specific physiological effect:

  • (A) Nicotine arrow Stimulates adrenal gland to release catecholamines into blood circulation (II)
  • (B) Morphine arrow Effective sedative and painkiller (III)
  • (C) Heroin arrow A depressant; slows down body function (IV)
  • (D) Cocaine arrow Causes sense of euphoria and increased energy (I)
Step 1: Result

The correct combination is A-II, B-III, C-IV, D-I.

Pattern Recognition

Sees: "Nicotine Morphine Heroin Cocaine". Shortcut: Morphine = Painkiller (B-III), Cocaine = Euphoria (D-I).

Chapter Mix

Class 12 Biology: Human Health and Disease

More Human Health and Disease Questions — neet_2024_05_may_morning

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