Mrs. Lebeda's Cell Organelle Quiz

Explanation
The correct answer is chloroplast. Chloroplasts are organelles found only in plant cells and are responsible for photosynthesis. They contain chlorophyll, a pigment that captures light energy, and use it to convert carbon dioxide and water into glucose and oxygen. This process is crucial for plants to produce their own food and release oxygen into the atmosphere. Mitochondria are responsible for cellular respiration, vacuoles are storage compartments, and cell walls provide structural support in plant cells.

Explanation
The cell membrane is a selectively permeable barrier that controls the movement of substances in and out of the cell. It is composed of lipids and proteins, which help maintain its structure and function. The lipid bilayer forms the main framework of the membrane, while the proteins embedded within it serve various functions such as transport, signaling, and cell adhesion. Therefore, the cell membrane is responsible for regulating the entry and exit of molecules, ions, and other substances, making it the correct answer.

Explanation
The nucleus is the control center of the cell where all of the hereditary information is stored. It contains the cell's DNA, which carries the instructions for making proteins and other molecules necessary for the cell's functioning. The nucleus also regulates the cell's activities by controlling gene expression and directing cellular processes.

Explanation
Both lysosomes and centrioles are organelles that are found only in animal cells. Lysosomes are responsible for breaking down waste materials and cellular debris, while centrioles play a role in cell division and the formation of the cytoskeleton. Chloroplasts, on the other hand, are found only in plant cells and are responsible for photosynthesis. Therefore, the correct answer is Both B and C.

Explanation
The cell wall is responsible for providing support and structure to plant cells. It is a rigid layer that surrounds the cell membrane and gives the cell its shape. The cell wall is made up of cellulose, a strong and fibrous substance that provides strength and protection to the cell. In addition to providing support, the cell wall also helps in regulating the movement of substances in and out of the cell.