In vertebrate animals, brown fat tissue's color is derived from abundant blood vessels and capillaries. white fat tissue, on the other hand, is specialized for fat storage and contains relatively few blood vessels or capillaries. brown fat cells have a specialized protein that allows protons to diffuse across the inner mitochondrial membrane. which of the following might be the function of the brown fat tissue? a) to increase the production of atpb) to allow other membranes of the cell to perform mitochondrial functionsc) to allow the animals to regulate their metabolic rate when it is especially hotd) to increase the rate of oxidative phosphorylation from its few mitochondriae) to regulate temperature by converting most of the energy from nadh oxidation to heat

The dna in a cell’s nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well as proteins that are targeted for secretion from the cell. for example, consider these two proteins: phosphofructokinase (pfk) is an enzyme that functions in the cytoplasm during glycolysis. insulin, a protein that regulates blood sugar levels, is secreted from specialized pancreatic cells. assume that you can track the cellular locations of these two proteins from the time that translation is complete until the proteins reach their final destinations.for each protein, identify its targeting pathway: the sequence of cellular locations in which the protein is found from when translation is complete until it reaches its final (functional) destination. (note that if an organelle is listed in a pathway, the location implied is inside the organelle, not in the membrane that surrounds the organelle.)

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries

Use the distance formula to determine weather each pair of segments have the same length