SS1 third Term biology Past Questions and Answers

SS1 third Term biology Past Questions and Answers

SS1 biology questions with options and answers:

Question: Which of the following is an example of a decomposer in an ecosystem?

a) Grass

b) Lion

c) Mushroom

d) Elephant

Answer: c) Mushroom

Question: What is the function of white blood cells in the human body?

a) Transport of oxygen

b) Defense against infections

c) Digestion of food

d) Regulation of blood sugar

Answer: b) Defense against infections

Question: In which part of the digestive system does absorption of nutrients mainly occur?

a) Stomach

b) Small intestine

c) Large intestine

d) Esophagus

Answer: b) Small intestine

Question: What is the purpose of the myelin sheath in nerve cells?

a) Protection

b) Conducting nerve impulses

c) Synthesizing proteins

d) Storing energy

Answer: b) Conducting nerve impulses

Question: Which gas is released as a byproduct of photosynthesis?

a) Oxygen

b) Carbon dioxide

c) Nitrogen

d) Hydrogen

Answer: a) Oxygen

Question: What is the role of insulin in the human body?

a) Regulation of blood pressure

b) Control of body temperature

c) Regulation of blood sugar levels

d) Oxygen transport

Answer: c) Regulation of blood sugar levels

Question: What is the function of the cornea in the eye?

a) Regulation of light entering the eye

b) Vision in low light conditions

c) Focusing light onto the retina

d) Color vision

Answer: c) Focusing light onto the retina

Question: Which process is responsible for the conversion of glucose into ATP in cells?

a) Photosynthesis

b) Cellular respiration

c) Fermentation

d) Glycolysis

Answer: b) Cellular respiration

Question: What is the function of the nephron in the kidney?

a) Synthesis of urine

b) Storage of urine

c) Filtration of blood

d) Digestion of nutrients

Answer: c) Filtration of blood

Question: Which of the following is a characteristic of arteries?

a) Carry deoxygenated blood

b) Have thick and elastic walls

c) Carry blood towards the heart

d) Exchange gases in capillaries

Answer: b) Have thick and elastic walls

Question: What is the function of the pituitary gland in the endocrine system?

a) Regulation of body temperature

b) Production of insulin

c) Secretion of growth hormones

d) Filtration of blood

Answer: c) Secretion of growth hormones

Question: Which of the following is a characteristic of asexual reproduction?

a) Formation of gametes

b) Involves meiosis

c) Offspring genetically identical to the parent

d) Requires two parents

Answer: c) Offspring genetically identical to the parent

Question: What is the function of the vestibular system in the human body?

a) Regulation of blood pressure

b) Coordination of balance and spatial orientation

c) Synthesis of hormones

d) Digestion of fats

Answer: b) Coordination of balance and spatial orientation

Question: Which structure in plant cells is responsible for the storage of water, ions, and nutrients?

a) Golgi apparatus

b) Vacuole

c) Endoplasmic reticulum

d) Nucleus

Answer: b) Vacuole

Question: What is the function of the gallbladder in the digestive system?

a) Production of bile

b) Storage and concentration of bile

c) Digestion of carbohydrates

d) Absorption of nutrients

Answer: b) Storage and concentration of bile

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

a) Synthesis of hormones

b) Protection of internal organs

c) Filtration of blood

d) Transport of oxygen

Answer: b) Protection of internal organs

Question: What is the function of the S-shaped curve in the human colon?

a) Digestion of proteins

b) Absorption of water and formation of feces

c) Synthesis of bile

d) Regulation of blood sugar

Answer: b) Absorption of water and formation of feces

Question: In humans, which blood type is considered the universal donor?

a) A

b) B

c) AB

d) O

Answer: d) O

Question: What is the primary function of the lymphatic system?

a) Transportation of oxygen

b) Defense against infections and diseases

c) Regulation of body temperature

d) Filtration of blood

Answer: b) Defense against infections and diseases

Question: Which process involves the breakdown of glucose in the absence of oxygen?

a) Fermentation

b) Glycolysis

c) Krebs cycle

d) Electron transport chain

Answer: a) Fermentation