Noncarbohydrate precursors of glucose are first converted into pyruvate or enter the pathway at later intermediates such as oxaloacetate and dihydroxyacetone phosphate . The major noncarbohydrate precursors are lactate, amino acids, and glycerol.
Answer:
D. A dairy cow produces milk over several years
Explanation:
A dairy cow is reared mainly for milk production and the cattle normally produces lots of milk as long as it’s well fed. This usually goes on for several years and provides income throughout that period and can then be used for beef purpose later on .
The beef cattle is usually slaughtered and the beef used immediately and has no long term use.
This is why dairy cow brings in more income than a beef cow.
The plasma membrane is a structure that protects the cell and it's made out of a lipid bi-layer, sugars and proteins. The proteins of the plasma membrane have many functions, some of them are structural, some carry out the cell transport of important molecules and some of them help the cell reactions and are called membrane enzymes . Enzymes are proteins that are capable to speed up a chemical reaction acting as catalysts.
<h2>C) option is correct </h2>
Explanation:
- The spinal cord has numerous groups of nerve fibers going towards and coming from the brain
- These have been collectively called the ascending and descending tracts of the spinal cord, respectively, these tracts are responsible for carrying sensory and motor stimuli to and from the periphery (respectively)
- The ascending tracts transmit sensory information from the sensory receptors to higher levels of the CNS
- The descending tracts originate from different cortical areas and from brain stem nuclei
- The descending pathway carry information associated with maintenance of motor activities such as posture, balance, muscle tone, and visceral and somatic reflex activity
