The Fundamental Unit of Life Test - 7

Robert Hooke discovered cells in 1665 when he made a chance observation through a self-designed microscope on examining a thin slice of cork.

Robert Brown discovered the nucleus of the cell.

Anton von Leuwenhoek was the first to observe bacteria.

Robert Frost is a poet.

Plant cells have BOTH a cell wall and a plasma membrane. The plasma membrane is surrounded by a cell wall which gives the plant cells shape, support and protection.

An amoeba is a type of cell or unicellular organism which has the ability to alter its shape, primarily by extending and retracting pseudopods.

Hence, option C is correct.

A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane. It can be tough, flexible, and sometimes rigid. It provides the cell with both structural support and protection, and also acts as a filtering mechanism.

Hence, option B is correct.

DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA.

Hence, option A is correct.

Inside a cell, numerous organelles function to remove wastes. One of the key organelles involved in digestion and waste removal is the lysosome. Lysosomes are organelles that contain digestive enzymes.

Hence, option A is correct.