ANSWER KEY

All correct answers in bold

Biology

The largest endocrine gland in human body is: Thyroid
The process by which the body regulates the blood sugar level: Glycaemia
Which one is type of muscle contraction? Both
Which one directly controls the role of transpiration in a leaf? Guard cell turgor
The functional unit of kidney is: Nephron
Which blood group is the universal recipient in human? AB
Which is also known as voice box? Larynx
Trachea is also known as: Wind Pipe
Birds do not have: Teeth
Pharynx is comprised of: 3 parts
Smallest bone in human body is found in: Ear
The study of tissues is called: Histology
Basic unit of protein is: Amino acid
Smallest unit of life: Cell
Process of removing metabolic waste from body is called: Excretion

What is the process by which a molecule is formed? Bonding
The process by which a gas changes to a liquid: Condensation
The study of properties and behavior of matter is called: Physical Chemistry
Which one is known as noble gas? Argon
What is the atomic number of carbon? 6
pH of neutral solution is always: 7
Which one is not fatty acid? Phthalic acid
Phosphorus helps in growth of: Root
Which compound is called as universal solvent? H₂O
Solvay’s process is: Pollution free

Ampere is the unit of: Current
The shortest possible distance between two points is known as: Straight line
Which factor affects the speed of sound in air? Temperature
Which color of visible light has the highest frequency? Violet
Which one is the type of energy? Both
What is the study of the behavior of light? Optics
Freezing point of water is: 0°C
Sound cannot travel through: Vacuum
Ohm’s law states that: V = IR
Which color of visible light has the longest wavelength? Red