BIOLOGY 1A03 Study Guide - Midterm Guide: Nuclear Matrix, Organelle, Nucleolus

• School: McMaster University
• Department: Biology
• Course: BIOLOGY 1A03
• Professor: Alastair Tracey Rosa Da Silva

Document Summary

Integral membrane proteins act as transport channels and signal receptors. Myosin motor proteins interact with scaffold proteins of cell (ex. actin) to facilitate intracellular movement. Make up large part of structures important for moving an individual call or for moving molecules within cells. Actin and myosin slide past each other in contractile bundles. Enzymes of etc catalyze synthesis of atp in mitochondrial membrane of cell. Cells of immune system produce proteins called antibodies that fight off bacterial and viral infections. Made by specialized immune cells and serve role of antibodies that can destroy disease-causing viruses and bacteria. Certain proteins embedded in cell membrane interact with carbs and important for cell to cell signaling. Cytoplasmically situated proteins allow for further amplification of these cell to cell signals. Tata-box binding protein which interacts with dna molecules is able to do so due to groove in protein that allows for interaction. Porin proteins are important for transport of water across cell membrane.