Prepare with MCQs
Thousands of verified questions for competitive exams
25K+
MCQs
15+
Categories
500+
Tests
Free
Access
All
๐ General Knowledge
๐ Current Affairs
๐ต๐ฐ Pakistan Affairs
โช Islamic Studies
๐ค English
๐ป Computer
๐งฎ Mathematics
โ Physics
๐งช Chemistry
๐งฌ Biology
๐ฌ Everyday Science
๐ฉโ๐ซ Pedagogy
ุงุฑุฏู Urdu
๐บ World Geography
๐ History
Biology
What is the basic monomer building block of a protein molecule?
A
Monosaccharide
B
Amino acid
C
Nucleotide
D
Fatty acid
Correct Answer
B
Biology
Which gland in the human body is often referred to as the "master gland" because it controls the secretions of many other endocrine glands?
A
Thyroid gland
B
Adrenal gland
C
Pancreas
D
Pituitary gland
Correct Answer
D
Biology
Which living vascular tissue in plants is responsible for transporting organic nutrients, particularly sucrose, from the leaves to the rest of the plant?
A
Xylem
B
Phloem
C
Cortex
D
Pith
Correct Answer
B
Biology
What term describes a symbiotic relationship where one organism benefits while the other organism is neither helped nor harmed?
A
Parasitism
B
Mutualism
C
Commensalism
D
Predation
Correct Answer
C
Biology
Which membrane-bound cell organelle contains digestive enzymes used to break down waste materials, worn-out cell parts, and engulfed pathogens?
A
Lysosome
B
Peroxisome
C
Golgi apparatus
D
Vacuole
Correct Answer
A
Biology
Which part of the human brain is primarily responsible for regulating posture, balance, and coordinating voluntary muscle movements?
A
Cerebrum
B
Medulla oblongata
C
Cerebellum
D
Hypothalamus
Correct Answer
C
Biology
What type of chemical bond holds the complementary base pairs (e.g., Adenine and Thymine) together in a DNA double helix?
A
Covalent bond
B
Hydrogen bond
C
Ionic bond
D
Peptide bond
Correct Answer
B
Biology
What is the name of the process in which a ribosome builds a protein based on the genetic code delivered by an mRNA molecule?
A
Transcription
B
Replication
C
Translation
D
Transformation
Correct Answer
C
Biology
Which vascular tissue in plants is responsible for transporting water and dissolved minerals upward from the roots to the leaves?
A
Phloem
B
Cambium
C
Epidermis
D
Xylem
Correct Answer
D
Biology
Which type of white blood cell is primarily responsible for producing antibodies against specific pathogens?
A
T lymphocytes
B
B lymphocytes
C
Macrophages
D
Neutrophils
Correct Answer
B