Statewise Prepration
Govt. Examwise MCQ
3213+ MCQ Questions in english हिन्दी
Which system defends against pathogens?
The immune system protects the body.
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What is homeostasis?
It’s the balance of internal condition.
Where does gas exchange occur in lungs?
Alveoli have thin walls for diffusion.
The human heart's pacemaker is:
SA node initiates heartbeat.
The human heart's pacemaker is:
Hemoglobin binds O₂ in RBCs.
What molecule carries oxygen in red blood cells?
Hemoglobin binds O₂ in RBCs.
Guard cells surround:
They control stomatal opening.
Which tissue transports water in plants?
Xylem moves water upward.
Stomata are used for:
They regulate CO₂ in and O₂ out.
Photosynthesis occurs in:
Chloroplasts contain chlorophyll for light absorption.
Lysosomes contain enzymes that:
They break down waste and materials.
The fluid mosaic model describes
It describes membrane components in fluid bilayer.
What structure maintains cell shape and structure?
The cytoskeleton comprises microtubules and filaments.
Which organelle modifies and packages proteins?
Golgi processes and ships proteins.
Mitochondria are the site of:
They produce ATP via respiration.
Which enzyme synthesizes RNA from DNA?
RNA polymerase builds RNA during transcription.
The “central dogma” of molecular biology is:
Information flows from DNA to RNA to protein.
Which RNA carries amino acids to the ribosome?
Transfer RNA brings amino acids for protein synthesis.
DNA replication is described as:
Each new DNA has one original and one new strand.
A) Chromosome B) Gene C) DNA D) Nucleus
A gene is a DNA segment that codes for a trait.
What is the missing number? 3, 6, 11, 18, ?
Difference between terms: +3, +5, +7, +9 → next is +11. So, 18 + 9 = 27.
If TODAY is coded as WSGDB, what is the code for NIGHT?
T→W (+3), O→S (+4), D→G (+3), A→D (+3), Y→B (+3). Apply same logic: N→P, I→J, G→I, H→F, T→V → Code is PJIFV.
Which letter comes in place of question mark in this sequence: C, E, G, I, ?
Each letter is skipping one in the alphabet: C (+2) E (+2) G (+2) I (+2) → next is K.
Which number replaces the question mark? 9, 18, 36, ?, 144
Each number is multiplied by 2: 9×2 = 18, 18×2 = 36, 36×2 = 72, 72×2 = 144. So the missing number is 72.
Rearrange the letters: RTAF to form a meaningful word.
Explanation: The correct meaningful word formed from RTAF is RAFT, which is a small flat boat. All other options are meaningless or not actual English words.
What comes next in the series: 0, 3, 8, 15, 24, ?
Answer: D. 35 Explanation: This is a series of n² - 1: 1² - 1 = 0 2² - 1 = 3 3² - 1 = 8 4² - 1 = 15 5² - 1 = 24 6² - 1 = 35 → Answer is 35
Find the next term: 2A, 4C, 6E, 8G, ?
Numbers increase by 2: 2, 4, 6, 8 → next is 10. Letters: A, C, E, G → skip 1 each time (A + 2 = C, +2 = E...) → next is I.
Statements: All pens are books. Some books are chairs. Conclusions: I. Some pens are chairs. II. All books are pens.
From the statements, we cannot deduce that some pens are chairs or that all books are pens. Both conclusions go beyond the given statements.
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