Which of the following is the first membrane that an oral medication must pass through? a)...
Which of the following is the first membrane that an oral medication must pass through?
a) The oral mucosa.
b) Plasma membranes of target cells.
c) Plasma membranes of mucosal cells in the GI tract.
d) Plasma membrane of the capillary endothelial cells.
Homework Answers
Answer: (C) Plasma membrane of mucosal cells in the GI tract.
(Plasma membrane of mucosal cells in the GI tract performs the absorption process)
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Which of the following is the first membrane that an
oral medication must pass through?
a)...
question#38 31. Which of the following is corransported with Na' in the apical membrane of produ...
question#38
31. Which of the following is corransported with Na' in the apical membrane of produ cells of the kidney! Curea c. glucose b. K d. choline 32. To calculate the transport maximum for substance X wil need to know the GFR and the a. rate of secretion of substance X b. filtered load of substance X c. plasma concentration of substance X d. renal threshold of substance X c. filtration fraction of substance X True/False Label the following statements...
Molecular oxygen (O2), which is required for the production of ATP by mitochondria, must pass through...
Molecular oxygen (O2), which is required for the production of ATP by mitochondria, must pass through at least three membranes to get to the enzymes where it is used. O2 is also produced in chloroplasts and must pass through at least four membranes to be released from the plant. How does O2 reach mitochondria and escape chloroplasts? A. Secondary active transport B. Using endomembrane system vesicles C. Passive diffusion D. Primary active transport It undergoes a chemical reaction that binds...
27. Integrins are single-pass integral membrane proteins in the plasma membrane of animal cells and are...
27. Integrins are single-pass integral membrane proteins in the plasma membrane of animal cells and are involved in the interaction of the cell with the surrounding extracellular matrix. Which of the following descriptions do you think matches the transmembrane part of an integrin molecule? A. It forms a B barrel. B. It is an a helix that is bent in the middle. C. It is about 10 amino acids long, with every other amino acid side chain being hydrophobic. D....
QUESTION 4 Which of the following statements about the blood-brain-barrier (BBB) is NOT true? a. weaker...
QUESTION 4 Which of the following statements about the blood-brain-barrier (BBB) is NOT true? a. weaker near area posterma, pituitary & pineal glands Ob.composed of astrocytes and 'tight junctions c. large and electrically charged molecules pass out of the capillary easily d.small, uncharged molecules pass through the endothelial membrane e. glucose, amino acids, and fats are carried across the membrane by active transport
What structures are found in the cytoplasm, near the plasma membrane, at the axonal end of...
What structures are found in the cytoplasm, near the plasma membrane, at the axonal end of neuron: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors c) Secretory vesicles d) mitochondria e) nucleus What protein is found (evenly distributed) along the entire length of the cell's plasma membrane: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors c) Secretory vesicles d) nucleus e) mitochondria Proteins found exclusively at the dendritic end of the neuron: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors...
mon 1 Which of the following choices reflects the appropriate order of locations through which a...
mon 1 Which of the following choices reflects the appropriate order of locations through which a newly translated protein destined for the plasma membrane trave? Mariato Select one ER- Golgi plasma membrane Golgi - E lysosome plasma membrane lysosome-ondosome-plasma membrane d. Golgi - ER-Lysosome-plasma membrane ER - some-Gold-plasma membrane Question 2 Proteins destined for the mitochondrial matrix must pass through the Select one Inner mitochondrial membrane intermembrane space couter mitochondrial membrane d. TOM Complex All of these are correct Question...
Oncology- which of following is the most common medication error with oral agents for cancer. a)...
Oncology- which of following is the most common medication error with oral agents for cancer. a) administering the wrong dose of the medication b) taking the medication at an inconsistent time each day c ) dispensing the incorrect medication by a pharmacy d) crushing the medication and micing it with a liquid
The neurotransmitter acetylcholine (ACh) causes the rapid contraction of skeletal muscle and the slower relaxation of...
The neurotransmitter acetylcholine (ACh) causes the rapid contraction of skeletal muscle and the slower relaxation of cardiac muscle. Which one of the following is the most likely explanation for this difference? A. ACh activates a GPCR pathway in cardiac muscle and an ion channel coupled receptor in skeletal muscle. B. ACh activates an ion channel coupled receptor in cardiac muscle and a GPCR pathway in cardiac muscle. C. ACh is permeable through the plasma membrane of skeletal muscle cells but...
1- Proteoglycans are different from peptidoglycans and glycoproteins in that proteoglycans: a. are primarily chains of...
1- Proteoglycans are different from peptidoglycans and glycoproteins in that proteoglycans: a. are primarily chains of polysaccharides, with each polysaccharide covalently linked to one core protein b. are primarily chains of polysaccharides that are covalently linked to each other through a few amino acids c. are primarily proteins that are modified with a few polysaccharides d. are primarily proteins that are modified with one polysaccharide 2- Which of the following statements about tight junctions is FALSE? a. Tight junctions are...
Toxicology 1) The toxicants pass through the cell membranes by what is known as, "passive diffusion"...
Toxicology
1) The toxicants pass through the cell membranes by what is known as, "passive diffusion" which depends on (a) pore size (b) concentration gradients across the membrane (c) lipid solubility (d) the diastolic and systolic blood pressure in the individual 2) In toxicokinetics the rate of elimination of administered substances is measured from the area plots of concentrations versus time. Among the following substances which one would you expect to be excreted out at the slowest rate? (a) glucose...
question#38
31. Which of the following is corransported with Na' in the apical membrane of produ cells of the kidney! Curea c. glucose b. K d. choline 32. To calculate the transport maximum for substance X wil need to know the GFR and the a. rate of secretion of substance X b. filtered load of substance X c. plasma concentration of substance X d. renal threshold of substance X c. filtration fraction of substance X True/False Label the following statements...
27. Integrins are single-pass integral membrane proteins in the plasma membrane of animal cells and are involved in the interaction of the cell with the surrounding extracellular matrix. Which of the following descriptions do you think matches the transmembrane part of an integrin molecule? A. It forms a B barrel. B. It is an a helix that is bent in the middle. C. It is about 10 amino acids long, with every other amino acid side chain being hydrophobic. D....
QUESTION 4 Which of the following statements about the blood-brain-barrier (BBB) is NOT true? a. weaker near area posterma, pituitary & pineal glands Ob.composed of astrocytes and 'tight junctions c. large and electrically charged molecules pass out of the capillary easily d.small, uncharged molecules pass through the endothelial membrane e. glucose, amino acids, and fats are carried across the membrane by active transport
What structures are found in the cytoplasm, near the plasma membrane, at the axonal end of neuron: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors c) Secretory vesicles d) mitochondria e) nucleus What protein is found (evenly distributed) along the entire length of the cell's plasma membrane: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors c) Secretory vesicles d) nucleus e) mitochondria Proteins found exclusively at the dendritic end of the neuron: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors...
mon 1 Which of the following choices reflects the appropriate order of locations through which a newly translated protein destined for the plasma membrane trave? Mariato Select one ER- Golgi plasma membrane Golgi - E lysosome plasma membrane lysosome-ondosome-plasma membrane d. Golgi - ER-Lysosome-plasma membrane ER - some-Gold-plasma membrane Question 2 Proteins destined for the mitochondrial matrix must pass through the Select one Inner mitochondrial membrane intermembrane space couter mitochondrial membrane d. TOM Complex All of these are correct Question...
Toxicology
1) The toxicants pass through the cell membranes by what is known as, "passive diffusion" which depends on (a) pore size (b) concentration gradients across the membrane (c) lipid solubility (d) the diastolic and systolic blood pressure in the individual 2) In toxicokinetics the rate of elimination of administered substances is measured from the area plots of concentrations versus time. Among the following substances which one would you expect to be excreted out at the slowest rate? (a) glucose...
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