Plant and Animal Cells Review

Chloroplasts are the organelles in plant cells that contain chlorophyll, the green pigment. They capture sunlight and use it to convert carbon dioxide and water into glucose through photosynthesis, making them essential for food production.

The cell membrane controls the movement of materials in and out of the cell and is essential for maintaining homeostasis, making it the correct answer. The cell wall provides structure, while chloroplasts and cytoplasm have different functions.

The mitochondrion is known as the "powerhouse" of the cell because it converts sugar into energy through cellular respiration, making it essential for energy production in cells.

Vacuoles are fluid-filled sacs in cells that store nutrients, waste products, and other materials. They play a crucial role in maintaining cell turgor and storing food, making them the correct answer for this question.

The nucleus is often referred to as the "brain of the cell" because it contains the cell's genetic material and controls its activities, including growth, metabolism, and reproduction.

The cell wall and chloroplast are unique to plant cells. The cell wall provides structure, while chloroplasts are essential for photosynthesis. Animal cells do not have these structures, which is why they are the correct answers.

#3 in the diagram refers to the nucleus, which is the control center of the cell containing genetic material. The other options, such as vacuoles, cell membrane, and chloroplast, serve different functions.

Chloroplasts are the organelles in plants that capture sunlight and convert it into chemical energy through photosynthesis, producing food for the cell. The other options do not perform this function.

The nucleus is the organelle that contains the cell's DNA, which holds the genetic information necessary for cell function and reproduction. Other organelles like mitochondria and chloroplasts have their own DNA, but the nucleus is the primary location for genetic material.

The chloroplast is the organelle in plant cells responsible for photosynthesis, where it converts sunlight into chemical energy, producing food for the plant. The nucleus, cytoplasm, and mitochondria have different functions.