Answer:
Step 1. A carboxyl group is removed from pyruvate, releasing a molecule of carbon dioxide into the surrounding medium. (Note: carbon dioxide is one carbon attached to two oxygen atoms and is one of the major end products of cellular respiration. ) The result of this step is a two-carbon hydroxyethyl group bound to the enzyme pyruvate dehydrogenase; the lost carbon dioxide is the first of the six carbons from the original glucose molecule to be removed. This step proceeds twice for every molecule of glucose metabolized (remember: there are two pyruvate molecules produced at the end of glycolysis); thus, two of the six carbons will have been removed at the end of both of these steps.
Step 2. The hydroxyethyl group is oxidized to an acetyl group, and the electrons are picked up by NAD+, forming NADH (the reduced form of NAD+). The high- energy electrons from NADH will be used later by the cell to generate ATP for energy.
Step 3. The enzyme-bound acetyl group is transferred to CoA, producing a molecule of acetyl CoA. This molecule of acetyl CoA is then further converted to be used in the next pathway of metabolism, the citric acid cycle.
Both the shrimps and the cockroaches are considered to be as scavengers at any point because they feed on dead organisms. Therefore the most accurate statement among the two organisms is "<span>Both animals are detrivores, and they fill the same niche in different environments."</span>
Answer:
Around 25-30 gigatons.
Explanation:
Although natural processes do produce much more carbon dioxide than humans, its a delicate balance and all of that carbon dioxide is absorbed back. However, when humans arrived, they disrupted that balance, and even with the relatively small amount it is creating big problems.
Answer:
A. viruses always have a protein coat and a nucleic acid (DNA or RNA)
Explanation:
Viruses are very small and simple beings, considered parasites for infecting cells of bacteria, protozoa, fungi, plants and animals. Surely you have heard of “flu viruses”, haven't you? Influenza is just one of the diseases caused by viruses that can infect humans. The virus (word that came from the Latin virus = poison / toxin) are simple and infectious little beings, formed basically by a protein capsule that surrounds the genetic material, can be DNA or RNA.
Answer:
Insecurely attached.
Explanation:
Infants that are insecurely attached have learned that adults are not to be trusted. Children who have had negative encounters with their caregivers tend to develop insecure attachment.
Children with insecure attachment refuse to associate with others, show fear and anger.
