Question

Find out the false statement in the following statements
A. Golgi apparatus is involved in the formation of lysosomes.
B. Nucleus, mitochondria, plastids have DNA, hence they are able to make their own structural proteins.
C. Mitochondria is said to be the powerhouse of the cell as ATP is generated in them.
D. Cell wall is present only in animal cells while plant cells have cell membranes.

Answer 1

Hint: Cell is the structural and functional unit of life. It contains several cell organelles that are specialized for performing various functions. The structure of the cell varies according to the function they have to perform.

Complete answer:
Based on the number of cells in an organism, there are two types-unicellular and multicellular organisms. Unicellular organisms have a single cell as in bacteria and multicellular organisms contain many cells performing various functions. The structure and composition of the cell are different in prokaryotes and eukaryotes. Prokaryotes lack a membrane-bound nucleus. Eukaryotic cells have a membrane-bound nucleus as well as membrane-bound cell organelles like mitochondria, chloroplasts. The structure is also different in plant and animal cells. Lysosomes, which contain several digestive enzymes are produced from the Golgi apparatus. The enzyme is actually secreted from the endoplasmic reticulum and is packed inside the Golgi complex to form lysosomes. They are also known as suicidal bags of the cell as they are involved in autophagy or cell death. Mitochondria is a membrane-bound cell organelle and it is a site of aerobic respiration. It produces energy in the form of ATP. So it is called the powerhouse of the cell. Organelles like the nucleus, mitochondria, and plastids contain DNA and RNA molecules. So they are able to produce their own protein required by them. Also, the cell wall is present in plant cells and not in animal cells. The plant cell wall contains cellulose, pectin, lignin, and hemicellulose.
Hence the correct option is D.

Note: Although algae, fungus, and bacteria contain a cell wall, they are different from the plant cell wall. The fungal cell wall is made up of cellulose and chitin while the bacterial cell wall is mainly made up of peptidoglycans. Algae has cellulose, galactans, and mannans and certain minerals in it.