What is the unique feature seen in plant cells?

Plant cells have certain distinguishing features, including chloroplasts, cell walls, and intracellular vacuoles. Photosynthesis takes place in chloroplasts; cell walls allow plants to have strong, upright structures; and vacuoles help regulate how cells handle water and storage of other molecules.

What is the layer on the outside of a cell?

membrane, in biology, the thin layer that forms the outer boundary of a living cell or of an internal cell compartment. The outer boundary is the plasma membrane, and the compartments enclosed by internal membranes are called organelles.

What is the difference in the shape of a plant cell with that of an animal cell?

Animal cells are mostly round and irregular in shape while plant cells have fixed, rectangular shapes. Plant and animal cells are both eukaryotic cells, so they have several features in common, such as the presence of a cell membrane, and cell organelles, like the nucleus, mitochondria and endoplasmic reticulum.

Which layer of the plant cell wall contains the lignin?

The most common additional polymer in secondary walls is lignin, a complex network of phenolic compounds found in the walls of the xylem vessels and fiber cells of woody tissues.

Which of these is unique to plant cells quizlet?

Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, which are not found within animal cells.

What is a unique function of central vacuoles in a plant cell?

A vacuole is a sphere filled with fluid and molecules inside a cell. The central vacuole stores water and maintains turgor pressure in a plant cell. It also pushes the contents of the cell toward the cell membrane, which allows the plant cells to take in more light energy for making food through photosynthesis.

What makes the cell membrane a unique structure?

Cell membranes serve as barriers and gatekeepers. They are semi-permeable, which means that some molecules can diffuse across the lipid bilayer but others cannot. On the other hand, cell membranes restrict diffusion of highly charged molecules, such as ions, and large molecules, such as sugars and amino acids.

How do centrosomes help the cell?

The centrosome is an important part of how the cell organizes the cell division. The centrosomes duplicate before cell division, so they then help to organize the microtubules and the cell division process.

Do plant cells have lysosomes?

Lysosomes are membrane bounded organelles found in animal and plant cells. They assist with degrading material taken in from outside the cell and life expired components from within the cell. Recent research suggests that lysosomes are organelles that store hydrolytic enzymes in an inactive state.

What are the features of cell wall?

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.

How do bacterial cell walls differ from plant cell walls?

Plant cell walls are made up of pectic polysaccharides, proteins, cellulose, phenolic compounds, and water. Bacterial cells have a cell wall surrounding the inner components of the cell. Bacterial cell walls are made of peptidoglycan(murein).