Use the drop-down menus to label the organelles in the picture to the right label a

Answer;

Label A; Mitochondria.

Label B; Nucleus.

Label C; Golgi apparatus.

Label D; Rough endoplasmic reticulum

Explanation;All the above are various organelles in a eukaryotic cells each carrying different cellular activity to enhance the functioning of a cell.

Label A; Mitochondria.

Mitochondria is the powerhouse of the cell which converts glucose to energy rich molecules of ATP, through the process of cellular respiration.

Label B; Nucleus.

Nucleus contains the genetic material or DNA, RNA , nucleolus, chromatin fibres and proteins. It contains the chromosomes which control the hereditary characteristics.It also regulates all the activities of the cell.

Label C; Golgi apparatus.

Golgi apparatus; they are also called Golgi bodies. They function in modifying, sorting and packaging of proteins for secretion. They are also involved in the transport of lipids around the cell, and the creation of lysosomes.

Label D; Rough endoplasmic reticulum

The rough endoplasmic reticulum provides surface for protein synthesis. It is also used to transport cellular contents from one cell to another.The risbosomes attached on the rough endoplasmic reticulum are resposible for the protein synthesis through the process of translation.

answer: - b cells

explanation: -

there are many types of white blood cells present in our body. one such class of white blood cells are the lymphocytes. the b cells belong to the lymphocyte class of wbcs. the b cells perform their action against the pathogen by producing specialised proteins called as antibodies. these antibodies are produced as and when the b cells encounter pathogens in response to the antigens present on the surface of the pathogen. these antibodies bind to the antigens present on the pathogen and then, target them for destruction by other cells of the immune system.

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.