Each villus contains a lacteal, which functions to:
a. absorb the products of lipid digestion.
b. aid in the absorption of carbohydrates.
c. aid in the absorption of water.
d. secrete enzymes to aid in the absorption of fats.
e. remove protein from the interstitial fluid.
A
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If a person were unable to produce much of this substance, the gastric juices might destroy the stomach lining
A) chyme B) HCl C) mucus D) pepsin
Peptide bonds form between ________
A) amino acids B) an mRNA codon and a tRNA anticodon C) a tRNA and the amino acid it is carrying D) an mRNA transcript and the small ribosomal subunit
DNA barcoding:
A: is a type of reverse genetics. B: is the most commonly used type of DNA fingerprinting used by the FBI. C: attempts to provide a unique sequence identifier for all life forms. D: is based mainly on repetitive DNA. E: is used for prenatal genetic screening.
A rumen is the location where active microbial populations ________ ________, the main component of plant cell walls, into usable nutrient sources for the animal
a. ferment peptidoglycan b. respire peptidoglycan c. ferment cellulose d. respire cellulose