Mealtimes are frustrating for Akecheta’s mother. Her 4-year-old son refuses to drink milk and begs instead for apple juice. She has tried to get him to drink other juices and to eat vitamin C-rich strawberries and oranges. However, Akecheta frequently complains “ that his stomach hurts” and cries until his mother gives in to his requests for apple juice. She is becoming extremely frustrated and has finally decided to take him to the local health clinic for advice.
After several visits and tests, the physician assistant determined that Akecheta is lactose intolerant and allergic to citrus fruits. Even small amounts of milk seem to upset his stomach and orange juice and strawberries cause him to break out in hives. Akecheta’s mother is concerned that may not be getting enough calcium and vitamin C and wonders if she should give him a daily vitamin tablet.
How can Choose My Plate help Akecheta’s mother make better choices for his meals?

What is the main structural difference between enveloped and nonenveloped viruses? a) enveloped viruses have their genetic material enclosed by a layer made only of protein.b) nonenveloped viruses have only a phospholipid membrane, while enveloped viruses have two membranes, the other one being a protein capsid.c) enveloped viruses have a phospholipid membrane outside their capsid, whereas nonenveloped viruses do not have a phospholipid membrane.d) both types of viruses have a capsid and phospholipid membrane; but in the nonenveloped virus the genetic material is between these two membranes, while in the enveloped virus the genetic material is inside both membranes.

Poliovirus is an rna virus of the picornavirus group, which uses its rna as mrna. at its 5' end, the rna genome has a viral protein (vpg) instead of a cap. this is followed by anontranslated leader sequence, and then a single long protein-coding region (~7000 nucleotides), followed by a poly-a tail. observations were made that used radioactive amino acid analogues. short period use of the radioactive amino acids result in labeling of only very long proteins, while longer periods of labeling result in several different short polypeptides. what conclusion is most consistent with the results of the radioactive labeling experiment? a) host cell ribosomes only translate the viral code into short polypeptides.b) the rna is only translated into a single long polypeptide, which is then cleaved into shorter ones.c) the rna is translated into short polypeptides, which are subsequently assembled into large ones.d) the large radioactive polypeptides are coded by the host, whereas the short ones are coded for by the virus.

Protein deficiency can result in a malfunctioning metabolism, a weak or irregular immune system, and possible blindness and deafness a rapid period of weight loss a significant and rapid weight gain damage to connective tissue and bones