SS3 First Term Biology Past Questions And Answers

Whether you’re gearing up for exams or just eager to delve deeper into the world of biology, these questions cover a variety of topics. Each question is accompanied by multiple-choice options, ensuring a dynamic and engaging learning experience. Let’s dive into the fascinating realm of SS3 biology!

 

What is the primary function of red blood cells?

a) Transporting oxygen

b) Digesting nutrients

c) Producing antibodies

d) Storing energy

 

Answer: a) Transporting oxygen

 

Which organelle is responsible for cellular respiration?

a) Golgi apparatus

b) Mitochondrion

c) Endoplasmic reticulum

d) Nucleus

 

Answer: b) Mitochondrion

 

In a food chain, what term is used to describe organisms that produce their own food?

a) Consumers

b) Decomposers

c) Producers

d) Predators

 

Answer: c) Producers

 

What is the main function of the enzyme amylase?

a) Breaking down proteins

b) Breaking down fats

c) Breaking down carbohydrates

d) Synthesizing DNA

 

Answer: c) Breaking down carbohydrates

 

Which of the following is a characteristic of eukaryotic cells?

a) Lack of membrane-bound organelles

b) Presence of a nucleus

c) Small size

d) Prokaryotic structure

 

Answer: b) Presence of a nucleus

 

What is the role of the pancreas in the digestive system?

a) Producing insulin

b) Producing bile

c) Producing gastric juices

d) Producing mucus

 

Answer: c) Producing gastric juices

 

The process of photosynthesis primarily occurs in which part of a plant cell?

a) Chloroplast

b) Nucleus

c) Cell membrane

d) Vacuole

 

Answer: a) Chloroplast

 

Which of the following is a greenhouse gas?

a) Oxygen

b) Nitrogen

c) Carbon dioxide

d) Hydrogen

 

Answer: c) Carbon dioxide

 

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

a) Transporting oxygen

b) Fighting infections

c) Clotting blood

d) Carrying nutrients

 

Answer: b) Fighting infections

 

What is the purpose of meiosis in the reproductive system?

a) Production of identical cells

b) Growth and repair of tissues

c) Formation of gametes

d) Energy production

 

Answer: c) Formation of gametes

 

Which structure connects the muscles to the bones?

a) Tendon

b) Ligament

c) Cartilage

d) Synapse

 

Answer: a) Tendon

 

What is the role of RNA in protein synthesis?

a) Carrying amino acids

b) Providing energy

c) Acting as a genetic blueprint

d) Storing genetic information

 

Answer: c) Acting as a genetic blueprint

 

Which gas is released during the process of cellular respiration?

a) Oxygen

b) Carbon dioxide

c) Nitrogen

d) Hydrogen

 

Answer: b) Carbon dioxide

 

What is the function of the nervous system?

a) Transportation of nutrients

b) Regulation of body temperature

c) Coordination and control

d) Filtration of waste products

 

Answer: c) Coordination and control

 

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

a) Synthesizing lipids

b) Producing ATP

c) Protein synthesis

d) Storing genetic information

 

Answer: c) Protein synthesis

 

Which process involves the exchange of gases in the lungs?

a) Osmosis

b) Diffusion

c) Active transport

d) Filtration

 

Answer: b) Diffusion

 

What is the function of the circulatory system?

a) Digestion of food

b) Pumping blood

c) Producing hormones

d) Filtering waste

 

Answer: b) Pumping blood

 

Which organelle is responsible for detoxifying harmful substances in a cell?

a) Lysosome

b) Peroxisome

c) Vacuole

d) Endoplasmic reticulum

 

Answer: b) Peroxisome

 

What is the role of the hypothalamus in the brain?

a) Regulating body temperature

b) Controlling muscle movement

c) Memory storage

d) Emotional processing

 

Answer: a) Regulating body temperature

 

Which phase of the cell cycle involves cell division?

a) G1 phase

b) S phase

c) G2 phase

d) M phase

 

Answer: d) M phase