How do Organisms Reproduce?
Very Short Q & A Based on CBSE Question Papers
Q1: Name the scientist who used the Latin phrase "Omnis cellula e cellula," means "Every Cell From a Cell"?
Answer: Rudolf Virchow, a German Scientist who emphasised that cell produces cells.
Q2: Does Cell Division play an important role in reproduction?
Answer: Yes. It plays important role in both prokaryotes and eukaryotes. It is important in following two ways:
i. gives rise to a new organism or daughter cell.
ii. in multicellular prokaryotes, cell division renews and repairs cells that die from wear and tear.
Q3: Give an example cell division occurs in human body for continuity of life?
Answer: Bone marrow continuously produce new blood cells.
Q4: What is the crucial function of cell division?
Answer: To pass genetic material (DNA copy) to offspring cellular apparatus.
Q5: What are the types of cell division? Give examples of each
Answer: There are two types of cell division:
i. Mitotis : This cell division occurs in most of the cells of the body. Parent cells divides into two (or more) offspring cells passing on identical copies of DNA (genetic material).
ii Meosis: This cell division occurs in cells of reproductive organs (called male and female gametes). Each offspring cell contains half copy of DNA material froms its parent cell. When these male and female gametes fuse together, it gives rise to new organism.
