A) Chloroplast:

Chloroplasts are specialized organelles found in plant cells that are responsible for photosynthesis. They are disc-shaped and contain chlorophyll, a green pigment that absorbs light energy. The role of chloroplasts is to convert light energy into chemical energy that can be used by the plant to carry out various metabolic processes.

• Photosynthesis: Chloroplasts are responsible for carrying out the process of photosynthesis, which involves converting light energy into chemical energy. During photosynthesis, chlorophyll absorbs light energy, which is then used to synthesize organic molecules such as glucose.

• Storage of Energy: Chloroplasts store the energy produced during photosynthesis in the form of starch. This energy can be used by the plant when required.

• Synthesis of Amino Acids: Chloroplasts are also involved in the synthesis of amino acids, which are the building blocks of proteins.

b) Diaphragm:

The diaphragm is a dome-shaped muscle that separates the chest cavity from the abdominal cavity. It plays an important role in the process of breathing.

• Breathing: The diaphragm contracts and relaxes to help move air in and out of the lungs during breathing. When the diaphragm contracts, it moves downwards, causing the chest cavity to expand and air to be drawn into the lungs. When the diaphragm relaxes, it moves upwards, causing the chest cavity to decrease in size and air to be expelled from the lungs.

• Protecting Organs: The diaphragm also helps to protect organs in the abdominal cavity by acting as a barrier between the chest and abdominal cavities.

c) Larynx:

The larynx, also known as the voice box, is an organ located in the neck that plays a vital role in speech and breathing.

• Speech Production: The larynx contains vocal cords, which vibrate when air passes through them, producing sound. The sound produced is then modified by the mouth, tongue, and lips to form speech.

• Breathing: The larynx also plays a role in breathing by preventing food and liquids from entering the trachea and lungs. It does this by closing off the airway when we swallow.

d) Liver:

The liver is a large, complex organ that performs a wide range of functions in the body.

• Detoxification: The liver is responsible for detoxifying harmful substances in the body, such as drugs and alcohol. It converts these substances into less harmful compounds that can be excreted by the body.

• Production of Bile: The liver produces bile, which is necessary for the digestion of fats. Bile is stored in the gallbladder and released into the small intestine when needed.

• Storage of Nutrients: The liver stores nutrients such as glucose, vitamins, and minerals, which can be used by the body when needed.

e) Pancreas:

The pancreas is a glandular organ located behind the stomach that plays an important role in digestion and blood sugar regulation.

• Digestion: The pancreas produces enzymes that are necessary for the digestion of proteins, carbohydrates, and fats. These enzymes are released into the small intestine where they help break down food.

• Blood Sugar Regulation: The pancreas also produces hormones such as insulin and glucagon, which are involved in the regulation of blood sugar levels. Insulin helps to lower blood sugar levels, while glucagon

The main role of chloroplasts is to conduct photosynthesis, The liver is a large, meaty organ that sits on the right side of the belly. ... The liver also detoxifies chemicals and metabolizes drugs. As it does so, the liver secretes bile that ends up back in the intestines. The liver also makes proteins important for blood clotting and other , The pancreas has two main functions: an exocrine function that helps in digestion and an endocrine function that regulates blood sugar..