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Biology Forums - Study Force is a free online homework help service catered towards college and high school students. Get homework help and answers to your toughest questions in biology, chemistry, physics, mathematics, engineering, accounting, business, humanities, and more.
Definition for. Range of tolerance. The entire set of conditions, such as air temperature or soil moisture, under which an organism is potentially able to survive. Levels outside of this range will be lethal. Biology Forums - Study Force is a free online homework help service catered towards college and high school students.
Definition for. Cyclin-dependent kinase (cdk) A protein responsible for advancing a cell through the phases of the cell cycle. Its function is dependent on the binding of a cyclin. Biology Forums - Study Force is a free online homework help service catered towards college and high school students.
The promoter includes two short sequences, the –10 and –35 consensus sequences, which are recognized by the σ subunit. 2. Chain initiation: The RNA polymerase holoenzyme first binds loosely to the promoter sequence and then binds tightly to it to form the closed promoter complex.
Definition for. Terminal cisternae. Terminal cisternae are enlarged areas of the sarcoplasmic reticulum surrounding the transverse tubules. These discrete regions within the muscle cell store calcium (increasing the capacity of the sarcoplasmic reticulum to release calcium) and release it when an action potential courses down the transverse ...
Definition for Visceral mass. From Biology Forums Dictionary. Viscera. Visible supply. 1) In molluscs, a structure that rests atop the foot and contains the internal organs. 2) The visceral mass, or visceropallium, is the soft, nonmuscular metabolic region of the mollusc. It contains the body organs.
Biology Forums - Study Force is a free online homework help service catered towards college and high school students. Get homework help and answers to your toughest questions in biology, chemistry, physics, mathematics, engineering, accounting, business, humanities, and more.
From Biology Forums Dictionary. In botany, a stipe is a stalk that supports some other structure. The precise meaning is different depending on which taxonomic group is being described. In the case of ferns, the stipe is only the petiole from the rootstock to the beginning of the leaf tissue, or lamina. The continuation of the structure within ...
Definition for. Glucose sparing. A metabolic adjustment that reserves the glucose produced by the liver for use by the nervous system. Example. In lipolysis, fat is broken down into glycerol and fatty acids. Glycerol is used to make glucose or in glycolysis. Fatty acids can be catabolized by many cells, especially aerobic muscle fibers.
Biology Forums - Study Force is a free online homework help service catered towards college and high school students. Get homework help and answers to your toughest questions in biology, chemistry, physics, mathematics, engineering, accounting, business, humanities, and more.