PPSC Secondary School Teacher Jobs SST Biology Top 25 Written MCQs Test Paper PDF Must Prepare Now

PPSC Secondary School Teacher Jobs SST Biology Top 25 Written MCQs Test Paper PDF Must Prepare Now

PPSC Secondary School Teacher Jobs SST (Biology) Top 25 Written MCQs Test Paper PDF

What is the powerhouse of the cell?

a) Ribosome

b) Mitochondria

c) Nucleus

d) Endoplasmic reticulum

Answer: b) Mitochondria

Which process allows plants to make their own food?

a) Photosynthesis

b) Respiration

c) Transpiration

d) Digestion

Answer: a) Photosynthesis

What is the function of red blood cells in the human body?

a) Carrying oxygen to body tissues

b) Fighting infections

c) Producing antibodies

d) Transporting nutrients to cells

Answer: a) Carrying oxygen to body tissues

What is the smallest unit of life?

a) Cell

b) Atom

c) Organ

d) Molecule

Answer: a) Cell

Which of the following is responsible for controlling the body’s functions and responses?

a) Nervous system

b) Endocrine system

c) Immune system

d) Muscular system

Answer: a) Nervous system

What is the function of the respiratory system?

a) Pump blood around the body

b) Break down food for energy

c) Exchange gases (oxygen and carbon dioxide)

d) Support and protect the body

Answer: c) Exchange gases (oxygen and carbon dioxide)

What is the main function of the digestive system?

a) Transport oxygen to cells

b) Break down food and absorb nutrients

c) Produce hormones for growth

d) Maintain body temperature

Answer: b) Break down food and absorb nutrients

What is the role of chlorophyll in plants during photosynthesis?

a) Absorbing carbon dioxide

b) Absorbing sunlight

c) Absorbing water

d) Absorbing oxygen

Answer: b) Absorbing sunlight

Which part of the plant conducts water and nutrients from the roots to other parts of the plant?

a) Stomata

b) Xylem

c) Phloem

d) Stem

Answer: b) Xylem

What is the function of the white blood cells in the body?

a) Carrying oxygen

b) Fighting off infections

c) Clotting blood

d) Carrying nutrients

Answer: b) Fighting off infections

What is the function of the ribosomes in a cell?

a) Producing energy

b) Synthesizing proteins

c) Storing genetic information

d) Regulating cell growth

Answer: b) Synthesizing proteins

Which organ is responsible for filtering waste from the blood?

a) Liver

b) Kidney

c) Stomach

d) Pancreas

Answer: b) Kidney

What is the role of the nucleus in a cell?

a) Breaking down waste

b) Controlling cell activities and storing genetic information

c) Producing energy

d) Regulating body temperature

Answer: b) Controlling cell activities and storing genetic information

Which structure in a plant cell is responsible for storing water and nutrients?

a) Chloroplast

b) Cell membrane

c) Vacuole

d) Cell wall

Answer: c) Vacuole

What is the process by which plants lose water vapor through their leaves?

a) Photosynthesis

b) Transpiration

c) Respiration

d) Evaporation

Answer: b) Transpiration

Which body system is responsible for protecting the body from diseases and infections?

a) Immune system

b) Respiratory system

c) Digestive system

d) Circulatory system

Answer: a) Immune system

What is the main function of the mitochondria in a cell?

a) Storage of genetic information

b) Producing energy (ATP)

c) Synthesizing proteins

d) Transporting materials within the cell

Answer: b) Producing energy (ATP)

What is the function of the circulatory system?

a) Exchange of gases

b) Breaking down food

c) Carrying nutrients and oxygen to cells

d) Providing structural support

Answer: c) Carrying nutrients and oxygen to cells

Which of the following is a function of the skeletal system?

a) Pump blood around the body

b) Protect internal organs

c) Produce hormones

d) Produce enzymes

Answer: b) Protect internal organs

What is the primary function of the nervous system?

a) Producing energy

b) Transporting oxygen

c) Controlling body movements and transmitting signals

d) Digesting food

Answer: c) Controlling body movements and transmitting signals

What is the function of the enzyme in a biological system?

a) Providing structural support

b) Initiating chemical reactions

c) Transmitting nerve impulses

d) Transporting oxygen

Answer: b) Initiating chemical reactions

What is the purpose of DNA in living organisms?

a) Providing energy

b) Storing genetic information

c) Transporting nutrients

d) Controlling body temperature

Answer: b) Storing genetic information

Which part of the flower contains the pollen grains?

a) Stigma

b) Sepal

c) Anther

d) Ovary

Answer: c) Anther

What is the function of the stomata in plants?

a) Absorbing sunlight

b) Exchanging gases (oxygen and carbon dioxide)

c) Transporting water

d) Producing flowers

Answer: b) Exchanging gases (oxygen and carbon dioxide)

What is the process by which a single cell divides into two identical daughter cells?

a) Meiosis

b) Fertilization

c) Mitosis

d) Osmosis

Answer: c) Mitosis

PPSC Secondary School Teacher Jobs SST Biology Top 25 Written MCQs Test Paper PDF Must Prepare Now