Question

F.Answer the following questions in one word or a single sentence.
1. Who postulated the Cell Theory?
2. Give one example of a unicellular organism.
3. What are genes?
4. Which organelle is called the food factory?
5. Name an organism which does not have a proper nucleus.
6. Which cell in the human body lacks a nucleus?
7. Name a human cell that has more than one nucleus.​

Answer 1

Explanation:

1. schwann and schleiden
2. ameoba
3. functional segments of dna
4. chloroplast
5. bacteria
6. rbc
7. muscle fibre cells

Answer 2

1. Theodor Schwann and Matthias Jakob Schleiden
2. paramecium
3. A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. ... In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases.
4. Endoplasmic Reticulum is known as the food factory of a cell as it produces necessary protein for the cell.
5. organisms which does not have proper nucleus are called prokariotes.

eg: Bacteria, blue green algae

6. Red blood cells

7. Liver cells.