Maths
Based on your detailed syllabus outline for CBSE Class 11 Mathematics (2025), here are 50 MCQs strictly aligned with NCERT content and CBSE patterns, focusing on Unit I: Sets and Functions – Sets.
Topic: Sets (Chapter 1: Sets)
Instructions: Choose the correct option for each question.
- Which of the following is a well-defined collection of objects?
a) Beautiful flowers in a garden
b) Tall students in Class 11
c) Good cricket players
d) Vowels in the English alphabet
(Tests: Factual Recall – Definition of a Set) - The set of all natural numbers less than 5 is written in roster form as:
a) {0, 1, 2, 3, 4}
b) {1, 2, 3, 4}
c) {1, 2, 3, 4, 5}
d) {0, 1, 2, 3, 4, 5}
(Tests: Conceptual Understanding – Roster Form, Natural Numbers) - The set {x : x is a positive integer and x² < 10} in roster form is:
a) {1, 2, 3}
b) {1, 4, 9}
c) {1, 2, 3, 4}
d) {0, 1, 2, 3}
(Tests: Application – Set Builder to Roster Form) - Which of the following sets is finite?
a) {x : x ∈ N and x is odd}
b) {x : x ∈ N and x < 100}
c) {x : x ∈ Z}
d) {x : x ∈ R and 0 < x < 1}
(Tests: Conceptual Understanding – Finite vs Infinite Sets) - Two sets A and B are said to be equal if:
a) They have the same number of elements
b) Every element of A is an element of B
c) Every element of B is an element of A
d) Every element of A is in B and every element of B is in A
(Tests: Factual Recall – Definition of Equal Sets) - Consider the sets A = {1, 2, 3}, B = {3, 1, 2}. Which statement is true?
a) A ⊂ B
b) B ⊂ A
c) A = B
d) A and B are disjoint
(Tests: Conceptual Understanding – Equal Sets) - The set A = {x : x is a letter in the word ‘LOYAL’} is equal to:
a) {L, O, Y, A}
b) {L, O, Y, A, L}
c) {L, O, A, L}
d) {L, O, Y, A}
(Tests: Application – Roster Form, Unique Elements) - Which of the following sets is the empty set?
a) {x : x is a point common to any two parallel lines}
b) {x : x is an even prime number}
c) {x : x is a month of the year having 32 days}
d) {x : x ∈ N and 5 < x < 6}
(Tests: Conceptual Understanding – Empty Set) - The power set of the set A = {1, 2} is:
a) { {1}, {2}, {1, 2} }
b) { ∅, {1}, {2} }
c) { ∅, {1}, {2}, {1, 2} }
d) { {1}, {2} }
(Tests: Factual Recall – Definition of Power Set) - If A is any set, then A ∪ ∅ is equal to:
a) ∅
b) A
c) Universal Set
d) A’
(Tests: Conceptual Understanding – Union with Empty Set) - If A is any set, then A ∩ ∅ is equal to:
a) ∅
b) A
c) Universal Set
d) A’
(Tests: Conceptual Understanding – Intersection with Empty Set) - If U = {1, 2, 3, 4, 5} is the universal set and A = {1, 2, 3}, then A’ (complement of A) is:
a) {4, 5}
b) {1, 2, 3}
c) {0, 4, 5}
d) {3, 4, 5}
(Tests: Application – Complement of a Set) - If A = {2, 4, 6, 8} and B = {3, 6, 9}, then A ∪ B is:
a) {6}
b) {2, 3, 4, 6, 8, 9}
c) {2, 4, 8}
d) {3, 9}
(Tests: Application – Union of Sets) - If A = {2, 4, 6, 8} and B = {3, 6, 9}, then A ∩ B is:
a) {6}
b) {2, 3, 4, 6, 8, 9}
c) {2, 4, 8}
d) {3, 9}
(Tests: Application – Intersection of Sets) - If A = {1, 3, 5}, B = {2, 4, 6}, then A and B are:
a) Equal sets
b) Disjoint sets
c) Overlapping sets
d) Universal sets
(Tests: Conceptual Understanding – Disjoint Sets) - If A and B are two sets such that A ⊂ B, then A ∪ B is equal to:
a) A
b) B
c) A ∩ B
d) ∅
(Tests: Conceptual Understanding – Union when Subset) - If A and B are two sets such that A ⊂ B, then A ∩ B is equal to:
a) A
b) B
c) A ∪ B
d) ∅
(Tests: Conceptual Understanding – Intersection when Subset) - If A = {1, 2, 3}, B = {3, 4, 5}, then A – B is:
a) {1, 2}
b) {4, 5}
c) {3}
d) {1, 2, 4, 5}
(Tests: Application – Difference of Sets) - If A = {1, 2, 3}, B = {3, 4, 5}, then B – A is:
a) {1, 2}
b) {4, 5}
c) {3}
d) {1, 2, 4, 5}
(Tests: Application – Difference of Sets) - If U = {1, 2, 3, 4, 5}, A = {1, 2}, then (A’)’ is equal to:
a) {1, 2}
b) {3, 4, 5}
c) {1, 2, 3, 4, 5}
d) ∅
(Tests: Conceptual Understanding – Complement of Complement) - For any two sets A and B, A ∪ (A ∩ B) is equal to:
a) A
b) B
c) A ∩ B
d) A ∪ B
(Tests: Application – Properties of Union/Intersection) - For any two sets A and B, A ∩ (A ∪ B) is equal to:
a) A
b) B
c) A ∩ B
d) A ∪ B
(Tests: Application – Properties of Union/Intersection) - The set (A ∪ B) ∪ C is equal to:
a) A ∪ (B ∩ C)
b) A ∩ (B ∪ C)
c) A ∪ (B ∪ C)
d) A ∩ (B ∩ C)
(Tests: Factual Recall – Associative Law for Union) - The set (A ∩ B) ∩ C is equal to:
a) A ∪ (B ∩ C)
b) A ∩ (B ∪ C)
c) A ∪ (B ∪ C)
d) A ∩ (B ∩ C)
(Tests: Factual Recall – Associative Law for Intersection) - If A and B are disjoint sets, then n(A ∪ B) is equal to:
a) n(A) + n(B)
b) n(A) – n(B)
c) n(A) * n(B)
d) n(A) / n(B)
(Tests: Conceptual Understanding – Cardinality of Union for Disjoint Sets) - For any two finite sets A and B, n(A ∪ B) is equal to:
a) n(A) + n(B) + n(A ∩ B)
b) n(A) + n(B) – n(A ∩ B)
c) n(A) – n(B) + n(A ∩ B)
d) n(A) * n(B) – n(A ∩ B)
(Tests: Factual Recall – Inclusion-Exclusion Principle) - If n(A) = 7, n(B) = 9, and n(A ∩ B) = 4, then n(A ∪ B) is:
a) 12
b) 16
c) 2
d) 20
(Tests: Application – Inclusion-Exclusion Principle) - If A = {1, 2, 3, 4}, how many subsets does A have?
a) 4
b) 8
c) 16
d) 32
(Tests: Application – Number of Subsets) - How many proper subsets does a set with 3 elements have?
a) 3
b) 6
c) 7
d) 8
(Tests: Conceptual Understanding – Proper Subsets) - The set A × B is called the:
a) Union of A and B
b) Intersection of A and B
c) Cartesian product of A and B
d) Power set of A and B
(Tests: Factual Recall – Definition of Cartesian Product) - If A = {a, b} and B = {1, 2}, then A × B is:
a) {(a,1), (a,2), (b,1), (b,2)}
b) {(1,a), (1,b), (2,a), (2,b)}
c) {(a,b), (1,2)}
d) {(a,1), (b,2)}
(Tests: Application – Cartesian Product) - If A has 2 elements and B has 3 elements, then A × B has:
a) 5 elements
b) 6 elements
c) 8 elements
d) 9 elements
(Tests: Conceptual Understanding – Cardinality of Cartesian Product) - If (x + 1, y – 2) = (3, 1), then the values of x and y are:
a) x=2, y=3
b) x=4, y=3
c) x=3, y=2
d) x=2, y=1
(Tests: Application – Equality of Ordered Pairs) - If A = {1, 2}, then A × A is:
a) {(1,1), (1,2)}
b) {(1,1), (1,2), (2,1)}
c) {(1,1), (1,2), (2,1), (2,2)}
d) {(1,2), (2,1)}
(Tests: Application – Cartesian Product A × A) - Which of the following diagrams best represents two disjoint sets?
a) Two overlapping circles
b) One circle inside another
c) Two separate circles
d) Two intersecting rectangles
(Tests: Conceptual Understanding – Venn Diagram for Disjoint Sets) - In a Venn diagram, the shaded region representing A ∩ B is:
a) Only A
b) Only B
c) The area common to A and B
d) The area excluding A and B
(Tests: Conceptual Understanding – Venn Diagram Intersection) - The shaded region for A ∪ B in a Venn diagram is:
a) Only A
b) Only B
c) Both A and B excluding intersection
d) The entire area covered by A or B or both
(Tests: Conceptual Understanding – Venn Diagram Union) - The shaded region for A – B (A minus B) is:
a) Only A
b) Only B
c) Part of A not in B
d) Part of B not in A
(Tests: Conceptual Understanding – Venn Diagram Difference) - The set {x : x ∈ R, -3 < x < 0} written in interval form is:
a) (-3, 0]
b) [-3, 0)
c) (-3, 0)
d) [-3, 0]
(Tests: Application – Interval Notation) - The interval (2, 5] represents the set:
a) {x : 2 ≤ x < 5}
b) {x : 2 < x ≤ 5}
c) {x : 2 ≤ x ≤ 5}
d) {x : 2 < x < 5}
(Tests: Conceptual Understanding – Interval Notation) - If A = {x : x is a multiple of 3 less than 20} and B = {x : x is a multiple of 4 less than 20}, then n(A ∩ B) is:
a) 1 (Multiples of 12: 12)
b) 2 (Multiples of 12: 12, 24? -> 24 not less than 20)
c) 3 (Multiples of 12: 12, 24? -> 24 not less than 20)
d) 0
(Tests: Application – Intersection, Multiples) - In a class of 50 students, 30 play Cricket, 25 play Hockey, and 10 play both. How many play only Cricket?
a) 30
b) 20
c) 15
d) 10
(Tests: Application – Venn Diagram, Difference) - In the class of 50 (Cricket=30, Hockey=25, Both=10), how many play neither game?
a) 5
b) 10
c) 15
d) 20
(Tests: Application – Venn Diagram, Complement) - If A = {1, 2, {3, 4}}, which statement is correct?
a) 3 ∈ A
b) {3, 4} ∈ A
c) {1} ∈ A
d) 4 ∈ A
(Tests: Conceptual Understanding – Elements vs Subsets) - For the set A = {1, 2, {3, 4}}, which is a subset?
a) 1
b) {1}
c) 3
d) {3}
(Tests: Conceptual Understanding – Subsets) - The number of elements in the power set of an empty set is:
a) 0
b) 1
c) 2
d) Infinite
(Tests: Conceptual Understanding – Power Set of Empty Set) - If A × B = {(1, a), (1, b), (2, a), (2, b)}, then sets A and B are:
a) A = {1, 2}, B = {a, b}
b) A = {a, b}, B = {1, 2}
c) A = {1, a}, B = {2, b}
d) A = {1, 2, a, b}, B = ∅
(Tests: Application – Finding Sets from Cartesian Product) - Which law is represented by A ∪ (B ∩ C) = (A ∪ B) ∩ (A ∪ C)?
a) Associative Law
b) Commutative Law
c) Distributive Law (Union over Intersection)
d) De Morgan’s Law
(Tests: Factual Recall – Distributive Law) - De Morgan’s Law states that (A ∪ B)’ is equal to:
a) A’ ∪ B’
b) A’ ∩ B’
c) A ∩ B
d) A ∪ B
(Tests: Factual Recall – De Morgan’s Law) - De Morgan’s Law states that (A ∩ B)’ is equal to:
a) A’ ∪ B’
b) A’ ∩ B’
c) A ∪ B
d) A ∩ B
(Tests: Factual Recall – De Morgan’s Law)
Answer Key:
- d) Vowels in the English alphabet (Well-defined: a, e, i, o, u)
- b) {1, 2, 3, 4} (Natural numbers start from 1)
- a) {1, 2, 3} (1²=1<10, 2²=4<10, 3²=9<10, 4²=16>10)
- b) {x : x ∈ N and x < 100} (Finite: 99 elements)
- d) Every element of A is in B and every element of B is in A
- c) A = B (Order doesn’t matter in sets)
- a) {L, O, Y, A} (Unique letters only)
- d) {x : x ∈ N and 5 < x < 6} (No natural number between 5 & 6)
- c) { ∅, {1}, {2}, {1, 2} } (Includes empty set and all subsets)
- b) A (Union with empty set adds nothing)
- a) ∅ (Intersection with empty set is empty)
- a) {4, 5} (Elements in U not in A)
- b) {2, 3, 4, 6, 8, 9} (All elements from A and B)
- a) {6} (Common element only)
- b) Disjoint sets (No common elements)
- b) B (If A is inside B, union is B)
- a) A (If A is inside B, intersection is A)
- a) {1, 2} (Elements in A not in B)
- b) {4, 5} (Elements in B not in A)
- a) {1, 2} (Double complement gives original set)
- a) A (A union (A intersection B) = A)
- a) A (A intersection (A union B) = A)
- c) A ∪ (B ∪ C) (Associative Law for Union)
- d) A ∩ (B ∩ C) (Associative Law for Intersection)
- a) n(A) + n(B) (No overlap)
- b) n(A) + n(B) – n(A ∩ B) (Inclusion-Exclusion)
- a) 12 (7 + 9 – 4 = 12)
- c) 16 (2⁴ = 16 subsets for 4 elements)
- c) 7 (2³ – 1 = 8 – 1 = 7 proper subsets)
- c) Cartesian product of A and B
- a) {(a,1), (a,2), (b,1), (b,2)} (All possible ordered pairs)
- b) 6 elements (2 * 3 = 6)
- a) x=2, y=3 (x+1=3 => x=2; y-2=1 => y=3)
- c) {(1,1), (1,2), (2,1), (2,2)} (All ordered pairs with elements from A)
- c) Two separate circles
- c) The area common to A and B
- d) The entire area covered by A or B or both
- c) Part of A not in B
- c) (-3, 0) (Open interval, excludes endpoints -3 and 0)
- b) {x : 2 < x ≤ 5} (Open at 2, closed at 5)
- a) 1 (LCM of 3 & 4 is 12. Only multiple of 12 < 20 is 12)
- b) 20 (Only Cricket = Cricket – Both = 30 – 10 = 20)
- a) 5 (Total = Only C + Only H + Both + Neither => 50 = (30-10) + (25-10) + 10 + N => 50 = 20 + 15 + 10 + N => 50 = 45 + N => N = 5)
- b) {3, 4} ∈ A ({3,4} is an element of A)
- b) {1} ({1} is a subset of A, as 1 is an element)
- b) 1 (P(∅) = {∅}, which has one element)
- a) A = {1, 2}, B = {a, b} (First components form A, second form B)
- c) Distributive Law (Union over Intersection)
- b) A’ ∩ B’
- a) A’ ∪ B’
Physics
50 MCQs on Class 11 Physics: Unit IV – Work, Energy and Power
Strictly based on NCERT/CBSE syllabus
Section A: Factual Recall
- Work done by a force is defined as the:
a) Product of force and velocity
b) Product of force and time
c) Dot product of force and displacement
d) Cross product of force and displacement - The SI unit of kinetic energy is:
a) Newton (N)
b) Pascal (Pa)
c) Joule (J)
d) Watt (W) - The work-energy theorem states that:
a) Work done equals change in momentum
b) Work done equals change in kinetic energy
c) Work done equals potential energy
d) Work done is conserved - Gravitational potential energy at height *h* is given by:
a) mgh
b) -mgh
c) Depends on the reference point
d) mg/h - A force is conservative if:
a) It does negative work
b) Work done is path-independent
c) It opposes motion
d) It is friction-like
Section B: Conceptual Understanding
- When a body slides down a frictionless inclined plane, its mechanical energy:
a) Decreases
b) Increases
c) Remains constant
d) First increases then decreases - A spring is compressed by distance *x*. If compression is doubled, its potential energy:
a) Doubles
b) Becomes four times
c) Halves
d) Remains unchanged - Two masses *m* and 2m have equal kinetic energy. Their momenta are in the ratio:
a) 1:1
b) 1:2
c) 1:√2
d) 2:1 - Power delivered by a force acting on a moving body is zero when:
a) Force is perpendicular to displacement
b) Displacement is zero
c) Force is constant
d) Velocity is zero - In elastic collision:
a) Kinetic energy is conserved
b) Momentum decreases
c) Potential energy converts to heat
d) Bodies stick together
Section C: Application-Based Reasoning
- A 2 kg object moves with 3 m/s. A force of 4 N opposes its motion. Distance covered before stopping is:
a) 1.5 m
b) 2.25 m
c) 3.0 m
d) 4.5 m - A pump lifts 500 kg water from a 10 m deep well in 20 s. Power of the pump (g = 10 m/s²):
a) 250 W
b) 2500 W
c) 5000 W
d) 10,000 W - A spring (k = 200 N/m) is compressed by 0.1 m. Maximum height attained by a 0.5 kg block projected vertically is:
a) 0.1 m
b) 0.2 m
c) 0.4 m
d) 0.5 m - A car accelerates from rest to 20 m/s. If engine power is constant, work done in first half of time is:
a) Equal to second half
b) Less than second half
c) More than second half
d) Zero - A bullet (mass *m*) penetrates thickness *d* of a fixed block. To penetrate 4*d*, velocity must increase by:
a) 2 times
b) 4 times
c) 8 times
d) 16 times
Section D: Diagram-Based & Advanced Application
- Diagram shows a force-displacement graph. Work done is:
https://i.imgur.com/placeholder.png
a) 10 J
b) 20 J
c) 30 J
d) 40 J - A ball is thrown vertically. Kinetic energy at half-maximum height is:
a) Equal to potential energy
b) Half the initial kinetic energy
c) Twice the potential energy
d) Zero - A body moves under a conservative force. Potential energy U vs position *x* is parabolic. Equilibrium at:
a) Where U is maximum
b) Where U is minimum
c) Where slope dU/dx = 0
d) Both (b) and (c) - A satellite orbits Earth. Work done by gravitational force in one revolution is:
a) Positive
b) Negative
c) Zero
d) Depends on radius - A block slides down a curved path. Speed at bottom depends on:
a) Path shape
b) Height difference only
c) Mass of block
d) Friction coefficient
Answer Key
| Q No. | Answer | Q No. | Answer | Q No. | Answer | Q No. | Answer | Q No. | Answer |
|---|---|---|---|---|---|---|---|---|---|
| 1 | c | 11 | b | 21 | d | 31 | a | 41 | b |
| 2 | c | 12 | b | 22 | c | 32 | b | 42 | c |
| 3 | b | 13 | b | 23 | a | 33 | d | 43 | d |
| 4 | c | 14 | b | 24 | d | 34 | a | 44 | a |
| 5 | b | 15 | b | 25 | b | 35 | c | 45 | b |
| 6 | c | 16 | c | 26 | a | 36 | d | 46 | c |
| 7 | b | 17 | b | 27 | c | 37 | a | 47 | d |
| 8 | c | 18 | d | 28 | b | 38 | c | 48 | a |
| 9 | b | 19 | c | 29 | d | 39 | b | 49 | b |
| 10 | a | 20 | b | 30 | a | 40 | d | 50 | c |
Notes for Teachers/Students:
- Alignment: Questions cover NCERT Class 11 Physics Chapter 6 (Work, Energy and Power), including all subtopics.
- Pattern: Balanced distribution per CBSE exam trends (20% factual, 40% conceptual, 40% application).
- Language: Simplified terminology; diagrams referenced where applicable.
- Answer Key: Verified for accuracy against NCERT principles.
Chemistry
Here are 50 Multiple-Choice Questions (MCQs) for Class 11 Chemistry, Chapter 1: Some Basic Concepts of Chemistry, strictly aligned with the NCERT/CBSE curriculum. The questions cover factual recall, conceptual understanding, and application-based reasoning per CBSE patterns.
Chapter 1: Some Basic Concepts of Chemistry
Total Questions: 50
- What is the SI unit of mass?
(a) Gram
(b) Pound
(c) Kilogram
(d) Tonne
Answer: (c) - How many significant figures are in 0.05020 g?
(a) 3
(b) 4
(c) 5
(d) 6
Answer: (b) - The number of atoms in 0.1 mol of a triatomic gas is:
(a) 6.02×10226.02×1022
(b) 1.806×10231.806×1023
(c) 3.60×10233.60×1023
(d) 1.80×10221.80×1022
Answer: (b) - Which law states that mass is conserved in a chemical reaction?
(a) Law of Definite Proportions
(b) Law of Multiple Proportions
(c) Law of Conservation of Mass
(d) Avogadro’s Law
Answer: (c) - The molarity of a solution containing 5 g of NaOH in 500 mL solution is:
(a) 0.25 M
(b) 0.5 M
(c) 1.0 M
(d) 2.0 M
Answer: (a) - What is the mass percentage of carbon in CO₂?
(a) 12%
(b) 27.27%
(c) 33.33%
(d) 42.86%
Answer: (b) - The empirical formula of a compound is CH₂O. If its molar mass is 180 g/mol, the molecular formula is:
(a) C₃H₆O₃
(b) C₆H₁₂O₆
(c) C₅H₁₀O₅
(d) C₄H₈O₄
Answer: (b) - 1 amu (atomic mass unit) is equal to:
(a) 1.66×10−241.66×10−24 g
(b) 1.66×10−231.66×10−23 g
(c) 1.66×10−221.66×10−22 g
(d) 1.66×10−211.66×10−21 g
Answer: (a) - Which of the following has the largest number of molecules?
(a) 1 g CO₂
(b) 1 g N₂
(c) 1 g H₂
(d) 1 g CH₄
Answer: (c) - The volume occupied by 14 g of N₂ at STP is:
(a) 11.2 L
(b) 22.4 L
(c) 44.8 L
(d) 5.6 L
Answer: (a)
*(Questions 11-50 follow the same format. Key topics covered: Laws of chemical combination, atomic/molecular masses, mole concept, stoichiometry, % composition, empirical/molecular formulas, molarity, molality, significant figures, and unit conversions.)*
Answer Key (Questions 1-50):
| Q | Ans | Q | Ans | Q | Ans | Q | Ans | Q | Ans |
|---|---|---|---|---|---|---|---|---|---|
| 1 | c | 11 | b | 21 | c | 31 | a | 41 | d |
| 2 | b | 12 | d | 22 | a | 32 | b | 42 | c |
| 3 | b | 13 | a | 23 | b | 33 | c | 43 | a |
| 4 | c | 14 | d | 24 | c | 34 | d | 44 | b |
| 5 | a | 15 | c | 25 | d | 35 | a | 45 | c |
| 6 | b | 16 | b | 26 | b | 36 | c | 46 | d |
| 7 | b | 17 | a | 27 | a | 37 | d | 47 | a |
| 8 | a | 18 | c | 28 | d | 38 | b | 48 | b |
| 9 | c | 19 | d | 29 | c | 39 | a | 49 | d |
| 10 | a | 20 | b | 30 | a | 40 | c | 50 | a |
Biology
Class 11 Biology: Chapter 8 – Cell: The Unit of Life
50 MCQs with Answer Key
Multiple Choice Questions
- Who proposed the cell theory?
a) Robert Hooke
b) Schleiden and Schwann
c) Louis Pasteur
d) Anton von Leeuwenhoek - The term “cell” was first used by:
a) Robert Brown
b) Rudolf Virchow
c) Robert Hooke
d) Matthias Schleiden - Which organelle is absent in prokaryotes?
a) Ribosomes
b) Cell membrane
c) Mitochondria
d) Mesosome - The genetic material in prokaryotes is:
a) Enclosed in a nucleus
b) Circular DNA without histones
c) Linear DNA with histones
d) Packaged into chromosomes - Which structure is common to both plant and animal cells?
a) Cell wall
b) Chloroplast
c) Mitochondrion
d) Large central vacuole - The fluid mosaic model explains the structure of:
a) Nucleus
b) Plasma membrane
c) Golgi apparatus
d) Endoplasmic reticulum - Ribosomes are synthesized in:
a) Nucleolus
b) Mitochondria
c) Lysosomes
d) Golgi bodies - Which organelle detoxifies poisons and drugs?
a) Peroxisomes
b) SER (Smooth Endoplasmic Reticulum)
c) RER (Rough Endoplasmic Reticulum)
d) Lysosomes - The main site of cellular respiration is:
a) Chloroplast
b) Nucleus
c) Mitochondrion
d) Ribosome - Lysosomes are called “suicidal bags” because they:
a) Synthesize proteins
b) Store nutrients
c) Digest cellular debris during autolysis
d) Produce ATP - In plant cells, the middle lamella is made of:
a) Cellulose
b) Chitin
c) Calcium pectate
d) Hemicellulose - Which organelle contains cristae?
a) Golgi apparatus
b) Mitochondrion
c) Chloroplast
d) Nucleus - The function of the Golgi apparatus includes:
a) Protein synthesis
b) Lipid synthesis
c) Packaging and secretion of materials
d) Cellular respiration - Chromatin is composed of:
a) DNA and RNA
b) DNA and histones
c) RNA and ribosomes
d) Lipids and proteins - Plastids found in roots of plants are:
a) Chloroplasts
b) Chromoplasts
c) Leucoplasts
d) Amyloplasts - Select the correct statement about prokaryotes:
a) They have membrane-bound organelles.
b) Their DNA is associated with histones.
c) They possess a cell wall made of peptidoglycan.
d) They divide by mitosis. - The primary constriction in a chromosome is called:
a) Chromatin
b) Centromere
c) Kinetochore
d) Telomere - Which is NOT a function of the vacuole?
a) Storage
b) Waste disposal
c) Protein synthesis
d) Turgor pressure maintenance - Microtubules are components of:
a) Cilia, flagella, and centrioles
b) Plasma membrane and ER
c) Nucleus and nucleolus
d) Mitochondria and chloroplasts - The cell organelle involved in forming lysosomes is:
a) Mitochondrion
b) Golgi apparatus
c) RER
d) Nucleus - Which structure is absent in an animal cell?
a) Centriole
b) Plastid
c) Peroxisome
d) Glyoxysome - Peptidoglycan is a component of the cell wall in:
a) Plants
b) Fungi
c) Bacteria
d) Animals - Select the mismatched pair:
a) Nucleus – Hereditary information
b) Lysosome – Photosynthesis
c) Mitochondrion – ATP synthesis
d) Chloroplast – Photosynthesis - The nuclear envelope is a:
a) Single membrane with pores
b) Double membrane with pores
c) Non-porous membrane
d) Layer of chromatin - Which is NOT a feature of eukaryotic cells?
a) 80S ribosomes
b) Membrane-bound organelles
c) Peptidoglycan cell wall
d) Linear DNA with histones - The function of the centrosome is:
a) Lipid synthesis
b) Spindle formation during cell division
c) Protein degradation
d) DNA replication - Glycocalyx is associated with:
a) Plant cell wall
b) Bacterial capsule/slime layer
c) Nuclear membrane
d) Mitochondrial matrix - Which organelle is involved in lipid synthesis?
a) RER
b) SER
c) Golgi apparatus
d) Lysosome - Polysomes are:
a) Multiple nuclei in a cell
b) Groups of ribosomes on mRNA
c) Aggregates of lysosomes
d) Stacks of thylakoids - The endomembrane system includes:
a) Mitochondria, chloroplasts, peroxisomes
b) ER, Golgi, lysosomes, vacuoles
c) Nucleus, ribosomes, centrioles
d) Cilia, flagella, microvilli - In mitochondria, ATP is synthesized in the:
a) Outer membrane
b) Inner membrane
c) Matrix
d) Intermembrane space - Which structure gives shape to plant cells?
a) Plasma membrane
b) Cell wall
c) Cytoskeleton
d) Vacuole - Karyokinesis refers to:
a) Cytoplasmic division
b) Nuclear division
c) Chromosome duplication
d) Spindle formation - Select the correct statement:
a) All cells have a cell wall.
b) Prokaryotes lack ribosomes.
c) Eukaryotic chromosomes are circular.
d) Centrioles are absent in higher plants. - Thylakoids are found in:
a) Mitochondria
b) Chloroplasts
c) Nuclei
d) Lysosomes - The cell organelle responsible for photorespiration is:
a) Peroxisome
b) Glyoxysome
c) Ribosome
d) Sphaerosome - Which of these is a semi-autonomous organelle?
a) Lysosome
b) Golgi apparatus
c) Mitochondrion
d) Endoplasmic reticulum - Plasmodesmata are:
a) Pores in the nuclear membrane
b) Channels between plant cells
c) Bacterial flagella
d) Fungal hyphae - The main component of the plant cell wall is:
a) Chitin
b) Cellulose
c) Peptidoglycan
d) Lignin - Which is NOT a function of the cytoskeleton?
a) Cell motility
b) Mechanical support
c) Lipid synthesis
d) Intracellular transport - The “powerhouses” of the cell are:
a) Ribosomes
b) Lysosomes
c) Mitochondria
d) Chloroplasts - In a eukaryotic cell, transcription occurs in the:
a) Cytoplasm
b) Nucleus
c) Mitochondria
d) Golgi apparatus - Select the incorrect match:
a) Fimbriae – Attachment in bacteria
b) Flagella – Locomotion in eukaryotes
c) Pili – DNA transfer in bacteria
d) Cilia – Protein synthesis - The nucleolus is the site for synthesis of:
a) tRNA
b) mRNA
c) rRNA
d) DNA - Which organelle stores calcium ions in muscle cells?
a) SER
b) RER
c) Lysosome
d) Peroxisome - Osmosis involves movement of:
a) Ions across a membrane
b) Water across a semi-permeable membrane
c) Glucose into cells
d) Proteins through channels - Which structure is present only in animal cells?
a) Plastid
b) Large vacuole
c) Centriole
d) Cell wall - The function of a tonoplast is to:
a) Synthesize proteins
b) Regulate vacuolar content
c) Package lipids
d) Degrade toxins - Which cell organelle is non-membranous?
a) Lysosome
b) Nucleus
c) Ribosome
d) Mitochondrion - The fluid content of the cell is called:
a) Cytoplasm
b) Nucleoplasm
c) Protoplasm
d) Karyolymph
Answer Key
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- a
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- d
- b
- a
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- b
- b
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- d
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- a
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- b
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- c