BIO 254 REVISION PAPER 1 QUESTIONS AND
ANSWERS SURE A+
✔✔spleen - ✔✔filters blood
✔✔chemical digestion - ✔✔breaking down food with enzymes
amylase, maltase, sucrase, lactase
✔✔Parastalsis - ✔✔Rhythmic contraction of the GI tract
✔✔Segmentation - ✔✔separating bits
✔✔Leptin - ✔✔full
✔✔Ghrelin - ✔✔hungry
✔✔small intestine - ✔✔majority absorption
✔✔rugae - ✔✔gastric folds in the stomach
✔✔Hydrochloride acid (HCl) - ✔✔Strong acid secreted by stomach, converts
pepsinogen to pepsin
✔✔Bile - ✔✔Substance produced by the liver; emulsifies fat
✔✔cecum of large intestine - ✔✔first part of the large intestine
✔✔large intestine - ✔✔cecum, colon, rectum
, ✔✔small intestine - ✔✔duodenum, jejunum, ileum
✔✔digestive organs - ✔✔mouth, pharynx, esophagus, stomach, small intestine, large
intestine
✔✔factors that encourage the circulation of lymphatic fluid - ✔✔deep breathing
inspirations
muscle contraction
valves
✔✔oxygen present - ✔✔citric acid cycle
electron transport chain
✔✔Glycolysis - ✔✔can occur with or without o2
✔✔cardia - ✔✔top of stomach
✔✔corpus - ✔✔body
✔✔saliva enzymes - ✔✔amylase and lipase
✔✔mechanical digestion - ✔✔mastication (chewing)
✔✔chemical digestion - ✔✔amylase
maltese
sucrase
lactase
✔✔Aerobic - ✔✔mitochondria
✔✔Anaerobic - ✔✔without oxygen
cytoplasm
✔✔Secretin - ✔✔A hormone secreted by the small intestine (duodenum) in response to
low pH (e.g., from stomach acid). It promotes the release of bicarbonate from the
pancreas to act as a buffer.
✔✔Gastrin - ✔✔stimulates release of HCl
✔✔humoral immunity - ✔✔B cells produce antibodies after exposure to specific
antigens; type of adaptive immunity
✔✔cell-mediated immunity - ✔✔T cells
ANSWERS SURE A+
✔✔spleen - ✔✔filters blood
✔✔chemical digestion - ✔✔breaking down food with enzymes
amylase, maltase, sucrase, lactase
✔✔Parastalsis - ✔✔Rhythmic contraction of the GI tract
✔✔Segmentation - ✔✔separating bits
✔✔Leptin - ✔✔full
✔✔Ghrelin - ✔✔hungry
✔✔small intestine - ✔✔majority absorption
✔✔rugae - ✔✔gastric folds in the stomach
✔✔Hydrochloride acid (HCl) - ✔✔Strong acid secreted by stomach, converts
pepsinogen to pepsin
✔✔Bile - ✔✔Substance produced by the liver; emulsifies fat
✔✔cecum of large intestine - ✔✔first part of the large intestine
✔✔large intestine - ✔✔cecum, colon, rectum
, ✔✔small intestine - ✔✔duodenum, jejunum, ileum
✔✔digestive organs - ✔✔mouth, pharynx, esophagus, stomach, small intestine, large
intestine
✔✔factors that encourage the circulation of lymphatic fluid - ✔✔deep breathing
inspirations
muscle contraction
valves
✔✔oxygen present - ✔✔citric acid cycle
electron transport chain
✔✔Glycolysis - ✔✔can occur with or without o2
✔✔cardia - ✔✔top of stomach
✔✔corpus - ✔✔body
✔✔saliva enzymes - ✔✔amylase and lipase
✔✔mechanical digestion - ✔✔mastication (chewing)
✔✔chemical digestion - ✔✔amylase
maltese
sucrase
lactase
✔✔Aerobic - ✔✔mitochondria
✔✔Anaerobic - ✔✔without oxygen
cytoplasm
✔✔Secretin - ✔✔A hormone secreted by the small intestine (duodenum) in response to
low pH (e.g., from stomach acid). It promotes the release of bicarbonate from the
pancreas to act as a buffer.
✔✔Gastrin - ✔✔stimulates release of HCl
✔✔humoral immunity - ✔✔B cells produce antibodies after exposure to specific
antigens; type of adaptive immunity
✔✔cell-mediated immunity - ✔✔T cells
