BIOL 133 (BIOL 133)

BIOL 133 Week 1 Chapter 1 Study Questions A decrease in blood water levels is detected in the brain. The brain sends signals to the pituitary gland to release hormones that communicate with the kidney to reabsorb water, which will increase blood water levels. This represents what life property? When a sperm uses chemical signals to navigate the swim towards the egg, it is a positive response. This is a form of When the brain, spinal cord, and nerves of the body communicate with each other, ...

Researchers are working to develop biofuels to free us from dependence on fossil fuels. Based on what you know about cellulose, what do you predict are the major advantage and disadvantage of using cellulose-rich plant material as biofuel? 2. What examples describe the second law of thermodynamics? Select all that apply. 3. Neostigmine is a drug used to treat the disease myasthenia gravis. The drug binds to the active site of acetylcholinesterase preventing breakdown of acetylcholine. This...

How are the membrane components oriented? 2. Molecules move from a high to low concentration in 3. What is the first step in Na+-K+ pump? 5. The impermeability of cell plasma membranes is a major barrier to using drugs to kill tumor cells or affect cells transgenically. CPPs are peptides that were discovered to have the ability to transport themselves (and even attached cargo) into cells. How they get into cells is still a mystery, but CPPs all have multiple positively charged groups. W...

1. _________________ prevent material from moving in or out of the brain’s capillaries 2. When comparing prokaryotes and eukaryotes, flagella 3. The shape of the cell is predominantly maintained by the 4. Decondensed chromatin is located within the 5. Cardiac muscle requires junctions that allow electrical signals through. Cardiac muscle also relies on calcium to contract. What junction is involved and what organelle stores calcium? 6. If an integrin protein is mutated what cell...