To check knowledge of concepts: What are the similar properties and effects of epinephrine and auxin (plant hormone). Concept introduction: Hormones are signaling molecules produced by animals or plants. Hormones bind only to specific cells based on the corresponding receptors and trigger cellular response. In animals, the secreted hormones reach target cells through the bloodstream, whereas in plants, hormones act locally. Epinephrine and auxin are hormones produced from animals and plants, respectively. They are signaling molecules and they stimulate particular cellular responses in their corresponding organisms.

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 45.3, Problem 3CC

Summary Introduction

To check knowledge of concepts: What are the similar properties and effects of epinephrine and auxin (plant hormone).

Concept introduction:

Hormones are signaling molecules produced by animals or plants. Hormones bind only to specific cells based on the corresponding receptors and trigger cellular response. In animals, the secreted hormones reach target cells through the bloodstream, whereas in plants, hormones act locally. Epinephrine and auxin are hormones produced from animals and plants, respectively. They are signaling molecules and they stimulate particular cellular responses in their corresponding organisms.

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1. In vivo testing provides valuable insight into a drug’s kinetics. Assessing drug kinetics following multiple different routes of administration provides greater insight than just a single route of administration alone. The following data was collected in 250 g rats following bolus iv, oral (po), and intraperitoneal (ip) administration.Using this data and set of graphs, determine: (a) k, C0, V, and AUC* for the bolus iv data (b) k, ka, B1, and AUC* for the po data (c) k, ka, B1, and AUC* for the ip data (d) relative bioavailability for po vs ip, Fpo/Fip (e) absolute po bioavailability, (f)Fpo absolute ip bioavailability, Fip MAKE SURE ANSWERS HAVE UNITS if appropriate. SHOW ALL WORK, including equation used, variables used and each step to your solution.

2. Drug quantification from plasma is commonly performed by using techniques such as HPLC or LC/MS. However, these methods do have limitations, and investigators may choose to use a radiolabeled analog of a drug instead. Radioligands are molecules that contain radioactive isotopes, commonly 3H or 14C. This technique allows investigators to quantify drug concentration from radiation measurements. The following measurements were made in 250 g rats following oral administration of 18.2 µCi of a 14C-labeled drug of interest: Time (min) Plasma Radiation Levels (µCi/L) 0 0.0 2 9.7 4 19.2 7 25.3 9 37.8 12 39.6 14 45.8 17 48.8 20 52.0 25 56.4 30 59.2 35 60.1 40 61.1 45 62.1 50 62.8 60 63.1 70 62.1 80 60.1 90 57.3 100 55.5 110 53.7 120 52.2 150 48.0 180 45.0 240 39.0 Note that a µCi is a measure of the amount of radioactivity and hence is a measure of the amount of drug present. Given that the oral bioavailability of this drug is known to be essentially 100%, estimate the following from this…

The current nutrition labelling regulation in Hong Kong requires food manufacturer to list E+7 information on the package of pre-packaged food products. Do you think that more nutrients, such as calcium and cholesterol, shall be included?

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 45.3, Problem 3CC

Summary Introduction

To check knowledge of concepts: What are the similar properties and effects of epinephrine and auxin (plant hormone).

Concept introduction:

Hormones are signaling molecules produced by animals or plants. Hormones bind only to specific cells based on the corresponding receptors and trigger cellular response. In animals, the secreted hormones reach target cells through the bloodstream, whereas in plants, hormones act locally. Epinephrine and auxin are hormones produced from animals and plants, respectively. They are signaling molecules and they stimulate particular cellular responses in their corresponding organisms.

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Check out a sample textbook solution

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Answer 3

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 45.3, Problem 3CC

Summary Introduction

To check knowledge of concepts: What are the similar properties and effects of epinephrine and auxin (plant hormone).

Concept introduction:

Hormones are signaling molecules produced by animals or plants. Hormones bind only to specific cells based on the corresponding receptors and trigger cellular response. In animals, the secreted hormones reach target cells through the bloodstream, whereas in plants, hormones act locally. Epinephrine and auxin are hormones produced from animals and plants, respectively. They are signaling molecules and they stimulate particular cellular responses in their corresponding organisms.

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Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 45.3, Problem 3CC

Summary Introduction