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BIOL 1101 Exam Two
In-Class Notes, Endomembrane System Functions and Vocab
| Question | Answer |
|---|---|
| What is the nuclear envelope | Highly regulated membrane barrier that separates nucleus from the cytoplasm in eukaryotic cells |
| What is the function of the nuclear envelope | Contains different proteins that are important for chromatin organization and gene regulation |
| What is the function of the nuclear lamina | Provides structural support to the nuclear envelope AND provides a place for chromatin to attach during interphase |
| What are the functions in the smooth endoplasmic reticulum | Synthesizes lipids; Metabolizes carbohydrates; Stores calcium; Detoxifies poison and drug |
| What are the functions in the rough endoplasmic reticulum | Extra cytoplasmic protein synthesis; Integral membrane proteins synthesis; Protein modifications; Membrane assembly |
| What are the 2 vague functions of the Golgi Body | Receiving and Shipping; Modification center |
| What are A, B, C, and D functions of the Golgi Body | Transport vesicles bring molecules from RER; Molecules fuse with membrane and sorted; Undergo remodeling and modifications; Secreted out of cell or to another organelle |
| What are in each compartment of the Golgi Body | Contains a distinct complement of enzymes |
| What is the enzyme's function in the compartment of the Golgi Body | Modifies the oligosaccharide attachments of glycoproteins in a sequential, stepwise fashion |
| What is the function of lysosomes | Digest food (phagocytosis); Digest damaged organelle (autophagy) |
| What are three pathways to the lysosome | Phagocytosis, Endocytosis, Autophagy |