Biology NECO exam past questions and answers

Biology NECO exam past questions and answers

Which organelle is responsible for cellular respiration?

A) Nucleus

B) Mitochondria

C) Endoplasmic reticulum

D) Golgi apparatus

Answer: B) Mitochondria

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

A) Energy production

B) Protein synthesis

C) Lipid synthesis

D) DNA replication

Answer: B) Protein synthesis

Which of the following is a prokaryotic cell?

A) Animal cell

B) Plant cell

C) Bacterial cell

D) Fungal cell

Answer: C) Bacterial cell

What is the powerhouse of the cell?

A) Nucleus

B) Mitochondria

C) Chloroplast

D) Ribosome

Answer: B) Mitochondria

What is the role of DNA in cells?

A) Energy storage

B) Genetic information storage

C) Protein synthesis

D) Waste elimination

Answer: B) Genetic information storage

Which process involves the division of a cell into two identical daughter cells?

A) Mitosis

B) Meiosis

C) Binary fission

D) Budding

Answer: A) Mitosis

What is the function of the enzyme amylase?

A) Protein digestion

B) Lipid digestion

C) Starch digestion

D) Nucleic acid digestion

Answer: C) Starch digestion

Which gas do plants absorb during photosynthesis?

A) Oxygen

B) Nitrogen

C) Carbon dioxide

D) Hydrogen

Answer: C) Carbon dioxide

What is the primary function of the circulatory system?

A) Respiration

B) Transportation of nutrients and oxygen

C) Excretion

D) Immune response

Answer: B) Transportation of nutrients and oxygen

Which tissue connects muscles to bones?

A) Epithelial tissue

B) Connective tissue

C) Nervous tissue

D) Muscular tissue

Answer: B) Connective tissue

What is the purpose of the respiratory system in humans?

A) Digestion

B) Blood circulation

C) Gas exchange

D) Excretion

Answer: C) Gas exchange

Which of the following is a characteristic of eukaryotic cells?

A) Lack of a nucleus

B) Presence of membrane-bound organelles

C) Unicellular structure

D) Small size

Answer: B) Presence of membrane-bound organelles

What is the main function of the nervous system?

A) Reproduction

B) Coordination and control of body activities

C) Digestion

D) Circulation of blood

Answer: B) Coordination and control of body activities

Which gas is produced as a byproduct of cellular respiration?

A) Carbon dioxide

B) Oxygen

C) Nitrogen

D) Hydrogen

Answer: A) Carbon dioxide

What is the role of white blood cells in the immune system?

A) Transportation of oxygen

B) Fighting infections

C) Digestion of food

D) Blood clotting

Answer: B) Fighting infections

Which part of the flower produces pollen?

A) Stamen

B) Pistil

C) Sepal

D) Petal

Answer: A) Stamen

What is the function of the enzyme pepsin in the digestive system?

A) Starch digestion

B) Protein digestion

C) Lipid digestion

D) Nucleic acid digestion

Answer: B) Protein digestion

In which organelle does photosynthesis occur?

A) Mitochondria

B) Nucleus

C) Chloroplast

D) Endoplasmic reticulum

Answer: C) Chloroplast

What is the main function of the excretory system?

A) Reproduction

B) Gas exchange

C) Removal of waste products

D) Hormone production

Answer: C) Removal of waste products

Which of the following is a renewable source of energy used by cells?

A) Glucose

B) ATP

C) DNA

D) Ribose

Answer: A) Glucose