Bio 201 Exam 1 questions and answers

Bio 201 Exam 1 questions and answers What is gross anatomy -Correct Answer-...branch of anatomy that deals with the structure of organs and tissues that are visible to the naked eye. Define embryology, cytology & microscopic anatomy -Correct Answer-...Embryology- development before birth, Cytology- cells of the body, Microscopic Anatomy- structures to small to be seen with naked eye The main component of the cytoplasm -Correct Answer-...Cytosol What is mitosis -Correct Answer-...cell division that results in two daughter cells each having the same # and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth. Role of leptin in the body -Correct Answer-...Leptin regulates energy intake and fat stores so that weight is maintained within a relatively narrow range. "Leptin is a hormone made by fat cells, that decrease appetite" What is an organic molecule -Correct Answer-...are the molecules of life and are built around chains of carbon atoms that are often quite long. Some functions of lysosomes -Correct Answer-...they breakdown, degrade and digest safely within a cell What type of epithelium would you find dense microvilli( lining intestines and kidney tubules) -Correct Answer-... simple cubodoidal epithelium Where would you find Pseudostratified columnar epithelia -Correct Answer-...ciliated is found in the trachea and upper respitory tract; non ciliated is found in the male sperm Major functions of fat -Correct Answer-...provides reserve fuel for cell, insulates against heat loss, supports and protects organs What is metabolism -Correct Answer-... either Anabolism- which build larger molucules from smaller ones ( storage of energy). Catabolism- which breaks down from complex molecules to simpler ones ( with the release of energy). What do collagen fibers do for IVDs ( intervertebral discs) -Correct Answer-...they provide strentgh with there crosslinks which resits being pulled apart, as well as cushoining. What produces the most ATPs during cellular respiration -Correct Answer-...glucose, and the electron tra