Cell Biology and Structure

 Ergosome is polymer of Ribosome.

 Smooth Endoplasmic reticulum is associated with lipid synthesis.      

Correct option is (3).

All of the above are characteristics of the meristamatic cell.

 Mesosomeman organelle of bacteria that appears as an invagination of the plasma membrane and functions either in DNA replication and cell division or excretion of exoenzymes.

Cells are isodiametric i.e. equally expanded on all sides. They may be oval, round, polygonal or elongated. Nucleus is present and hence living. The cell walls are thin and made of cellulose only. Cytoplasm is dense with a single large vacuole. Intercellular spaces may be present.

All of the above are the characteristic features of cells forming permanent tisues.

Parenchyma is mainly involved in functions, like storage and respiration. It also takes part in other functions like, photosynthesis, absorption, secretion and protection.

Epithelial tissue is arranged in single or multi-layered sheets and covers the internal and external surfaces of the body of an organism. It is the simplest tissue and is the protective tissue of the body. Epithelial tissue functions to protect underlying structures from injury abrasion or pressure, and from infection

Specialized connective tissue is derived from its property to connect and bind different tissues or organs. It also provides the structural framework and mechanical support to the body.It plays a role in body defense, tissue repair, fat storage, etc. It iscomposed of two basic components, namely, cells and their surrounding extracellular matrix. The cells are loosely arranged and lie embedded in the matrix.

It is the simplest tissue and is the protective tissue of the body. The cells of the tissue are tightly packed and it forms a continuous sheet. It covers most of the organs and cavities within the body. It also forms a barrier to keep different body systems separate. The skin and lining of the buccal cavity, blood vessels, alveoli and kidney tubules are made of epithelial tissue.

Histology is the branch of biology that studies the microscopic anatomy of biological tissues.

ATP (Adenosine Triphosphate) is primarily produced in the mitochondria during cellular respiration.

Protoplasm is often referred to as the physical basis of life because it contains all the components necessary for life processes.

Centrioles are non-membrane-bound organelles involved in cell division. Mitochondria and chloroplasts are double-membrane organelles.