EVERYDAY SCIENCE

Detailed explanation-1: -Lysosomes are organelles that contain digestive enzymes. They digest excess or worn out organelles, food particles, and engulfed viruses or bacteria. The most prominent role of mitochondria is to produce the energy currency of the cell, ATP, by respiration, and to regulate cellular metabolism.

Detailed explanation-2: -Which cell structure is correctly paired with its primary function? Explanation: The ribosome is where protein synthesis occurs, the mitochondria performs respiration, the vacuole stores water and other nutrients and the nucleus controls the cell.

Detailed explanation-3: -Mitochondria Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell’s biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).

Detailed explanation-4: -Which one of the following cell organelles is correctly matched with its function? Answer: (a) Ribosomes – synthesis of proteins Ribosomes are small granules scattered in the cytoplasm, responsible for protein synthesis.

Detailed explanation-5: -The nucleus is particularly important among eukaryotic organelles because it is the location of a cell’s DNA. Two other critical organelles are mitochondria and chloroplasts, which play important roles in energy conversion and are thought to have their evolutionary origins as simple single-celled organisms.