plant and animal cells

• The nucleus is an organelle found in both plant and animal cells that contains the cell's genetic material and controls cellular activities.
• The nuclear envelope consists of two membranes that hold several pores that ribosomes and RNA move in and out of.
• Ribosomes are the site of protein production.
• The smooth E.R. produces lipids such as cholesterol.
• The rough E.R. holds ribosomes that produce proteins
• Eukaryotic cells: cells that make up animals
• organelles: structures in a cell that preform specific functions
• Prokaryotic cells: plant cells
• Chloroplasts: membrane-bound organelles that use light energy and make food - a sugar called glucose - from water and carbon dioxide in photosythensis
• golgi apparatus is a series of membrane bound flattened sacs that are involved in the modification and packaging of proteins
• what is the function of lysomes?

  lysomes contain substances that help break down and recycle cellular components
• the nucleus contains genetic material (DNA) and controls all activities of the cell
• vacuoles store waste products, excess water or pigments
• nucleoplasm: jelly like substance inside the nucleus where DNA molecules are found
• the cell membrane is a flexible barrier that controls what enters and leaves the cell
• which two macromolecules make up membranes?

  lipids and phospholipids
• plants, fungal cells, bacteria and some types of protists have a cell wall
• the cell wall is a stiff structure outside the cell membrane
• the cell wall provides structure and support
• a cell wall protects a cell from attack by viruses and other harmful organsisms