Question

Mention the exact location of the following
a. Pancreas
b. Ovules
c. Centrosome
d. Sternum
e. Ceruminous glands

Answer 1

Hint: Pancreas is an organ of the vertebrate digestive system and endocrine system. In seed plants, the ovules give rise to female reproductive cells and store them. The centrosome is the reason the cell has a structure while the sternum is one of the largest and longest flat bones of the human body. Ceruminous glands are specialised sweat glands.

Complete Answer:
a. Pancreas: The pancreas is an elongated, tapered organ. It is located behind the stomach. The right side of the organ which is called the head is its widest part and lies in the curve of the duodenum.
b. Ovules: In flowering plants, the ovule is located inside the flower at a location called the gynoecium. Ovules are attached to the placenta inside the ovary through a stalk-like structure called funiculus.
c. Centrosome: The centrosome is situated in the cytoplasm near the nucleus. A single centriole is found at the basal end of cilia and flagella. During mitosis, the nuclear membrane will break down and the centrosome-nucleated microtubules will interact with the chromosomes. This results in the formation of a mitotic spindle.
d. Sternum: The sternum, also called breastbone, is the long flat bone located in the centre of the chest. It connects the ribs via the cartilage thereby forming the front of the rib cage. The sternum protects the heart, lungs and major blood vessels from all kinds of injury.
e. Ceruminous gland: These are sweat glands present subcutaneously in the external auditory canal. They produce cerumen, otherwise called earwax, by mixing their secretion with sebum and dead epidermal cells. Cerumen keeps the eardrum lubricated and clean. It also waterproofs the external auditory canal, kills bacteria if any present and traps foreign particles.

Note:
As an endocrine gland, the pancreas functions to regulate blood sugar levels by secreting insulin, glucagon, somatostatin, and pancreatic polypeptide hormones. As a part of the digestive system, the pancreas is an exocrine gland that secretes pancreatic juice into the duodenum. Ovules assist in the fertilisation and development of flowers. The ovary of the gynoecium produces one or more ovules and becomes the fruit wall.