Biology Forums - Study Force

A__________is a lymphatic vessel found in an intestinal villus into which nutrients circulate after they are absorbed.
 A) microvillus
  B) capillary
  C) lacteal
  D) sphincter

Q. 2

Which of the following is true of active transport mechanisms?
 A) They are exclusively responsible for the movement of nutrients into and out of the enterocytes.
  B) They facilitate the processes of osmosis and simple diffusion.
  C) They require energy to move substances across cell membranes.
  D) They allow nutrients to move from a region of higher concentration to a region of lower concentration.

Q. 3

Which of the following statements is true of elimination?
 A) Elimination occurs through the microvilli in the large intestine.
  B) The gastrointestinal tract and accessory organs carry out the process of elimination.
  C) The consistency of feces depends on its mucus content.
  D) Elimination removes metabolic wastes like ammonia and carbon dioxide from the body.

Q. 4

Which of the following statements is true of inflammatory bowel disease?
 A) It is caused due to escape of partially digested substances from tight junctions.
  B) It is considered a functional disorder due to the lack of any known structural abnormalities.
  C) It is characterized by the inflammation of the lining of the gastrointestinal tract.
  D) It is caused by elevated levels of serotonin in the gastrointestinal tract.

Q. 5

_____ is defined as the sum of chemical processes that occur within a living cell to maintain life.
 A) Homeostasis
  B) Metabolism
  C) Peristalsis
  D) Anabolism

Q. 6

Food allergy is most likely to be triggered by the:
 A) excessive loss of water and electrolytes from the body.
  B) vigorous contractions in the lining of the stomach.
  C) escape of partially digested food particles through the gaps in tight junctions.
  D) abrupt increase in the microbial population in the gastrointestinal tract.

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