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the plasma membrane
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| Question | Answer |
|---|---|
| nucleolus | Ribosomes are produced in the |
| Selective permeability | of the plasma membrane allows some substances to pass through while keeping others out. |
| phospholipid bilayer | The plasma membrane is made up of two layers of phospholipids arranged tail-to-tail in what is called a |
| transport proteins | Proteins also create tunnels through the plasma membrane. These proteins, known as |
| fluid mosaic model | As the individual molecules move around,a pattern, or mosaic, is formed on the surface of the plasma membrane. This organization of the plasma membrane is called the |
| cytoplasm | The environment inside the plasma membrane is a semi-fluid material called |
| cytoskeleton | is a network of long, thin protein fibers that provide an anchor for organelles inside the cell. |
| Ribosomes | produce proteins and are made of two components—RNA and protein. |
| endoplasmic reticulum | also called ER, is a membrane system of folded sacs and channels to which ribosomes are attached. |
| Golgi apparatus | modifi es, sorts, and packs the proteins into sacs called vesicles. |
| vacuoles | Cells have vesicles called _______ that act as temporary storage for materials in the cytoplasm. |
| Lysosomes | are vesicles that contain substances that digest excess or worn-out organelles and food particles. |
| Centrioles | are organelles made of microtubules that function during cell division. |
| mitochondria | The organelles that convert fuel particles such as sugars into usable energy are called |
| Chloroplasts | are organelles that capture light energy and convert it to chemical energy through a process called photosynthesis. |
| cell wall | is a mesh of fibers that surrounds the plasma membrane. |
| Cilia | are short projections that look like hairs. |
| Flagella | are longer projections that move in a whiplike motion. |