Question

Study of cell structure and function is called as

(A) Oncology

(B) Cytogenetics

(C) Molecular Biology

(D) Cell Biology

Answer 1

Hint: Cell is the basic structural and functional unit of life. The study of cell structure and function is known as cytology. Cytology is also known as cell biology. It includes the study of cell structure and its organelles such as mitochondria, chloroplast, nucleus ribosomes etc. All the living organisms present on the earth are made up of the cells therefore also called as building blocks of life. Some organisms are made up of single cells and some are made up of groups of so, on the basis of their cell numbers they are diving into two categories: Unicellular and Multicellular organisms.

Complete answer:

Human beings are multicellular organisms having a complex structure. These systems comprise of tissues which comprise of voluminous cells which require a continual supply of oxygen to fulfill the functional requirements. The main arena of various types of cellular activities is performed by the cytoplasm. Cytoplasm consists of a bulk of protoplasm excluding nucleus and vacuoles. Cytoplasm contains various types of cell organelles. Cell organelles are highly organized subcellular protoplasmic structures that have a different shape, chemical composition and perform different functions.

Cytology is the branch of science which deals with the study of cell structure and function. The study of cells helps in detail understanding of tissues, organs and the organism which is composed of cells.

Therefore, the answer is (D), Cell Biology.

Note:

Don’t be confused between cell biology and cytogenetics. Cytogenetics is the sub part of cell biology. Cell Biology is also known as cytology. Cytogenetics involves study of chromosomes and their functions whereas cell biology includes study of chromosomes and all organelles present in the cell as well as their membrane.