Learn Module 11 – BIO 203 - All Correct Answers PDF

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Summary

All correct answers to the Learn Quiz for module 11 in Bio 203 at Stony Brook University...

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Module 11: Nov 15 - 19

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Matt Widmer 155

Review Test Submission: LEARN: MODULE 11

Review Test Submission: LEARN: MODULE 11 User

Matt Widmer

Course

-BIO 203.30-31 Fundamentals of Biology: Cellular and Organ Physiology - Fall 2021

Test

LEARN: MODULE 11

Started

11/19/21 12:02 AM

Submitted

11/19/21 12:18 AM

Due Date

11/19/21 5:00 AM

Status

Completed

Attempt Score

28 out of 28 points

Time Elapsed

15 minutes

Results Displayed All Answers, Submitted Answers, Incorrectly Answered Questions

Question 1

1 out of 1 points

How many kilocalories of energy could be derived from the metabolism of carbohydrates in one serving of this food? Selected Answer: 148

Question 2

2 out of 2 points

Secretions from two types of cells in the stomach, are required for the digestion of proteins. Match the descriptions of potential problems in digestion with the defects in one or both cell types that might cause the problems. Question

Selected Match

Both parietal cells and chief cells function normally

C.normal chemical digestion of proteins in the stomach

Functional chief cells, but non-functional parietal cells

D. pepsinogen not activated, proteins not denatured, no chemical digestion of proteins

functional parietal cells, but non-functional chief cells

B.proteins denatured, but no chemical digestion of proteins

non-functional parietal cells and non-functional chief cells

A. no denaturation or chemical digestion of proteins

All Answer Choices A. no denaturation or chemical digestion of proteins B. proteins denatured, but no chemical digestion of proteins C. normal chemical digestion of proteins in the stomach D. pepsinogen not activated, proteins not denatured, no chemical digestion of proteins

Question 3

1 out of 1 points

If the pancreas was producing very high levels of bicarbonate, what hormone would you expect to be found at elevated levels in the blood? Selected Answer: Secretin

Question 4

1 out of 1 points

Which of the following topics do you find most challenging? You may select multiple topics. Selected Answers: Digestive Strategies (intracellular, gastrovascular cavities, alimentary canals) Answers: Digestive Strategies (intracellular, gastrovascular cavities, alimentary canals) Human Digestive system anatomy

Nutrients - carbs, fats, proteins Carbohydrate digestion and absorption Protein digestion and absorption Fat digestion and abosorption Gastric acid and pepsinogen secretion Small intestine enzyme secretion and activation Digestive hormones and regulation

Question 5

2 out of 2 points

Match each hormone with its stimuli. Question

Selected Match

Gastrin

B. Vagus nerve, food in stomach

Secretin

C. low pH of chyme in duodenum

Cholecystekinin A. Amino acids/fatty acids in duodenum insulin

D. glucose in blood

All Answer Choices A. Amino acids/fatty acids in duodenum B. Vagus nerve, food in stomach C. low pH of chyme in duodenum D. glucose in blood

Question 6

3 out of 3 points

Put the steps in the processes of fat digestion and absorption in order Answers

Selected Answer

Chylomicrons are expelled into the interstitial fluid on the basal side of the jejunal epithelium, and then pass into the lacteals. Triglycerides are resynthesized inside of jejunal epithelial cells, and are packaged into chylomicrons.

Mechanical digestion in the stomach breaks up injested food into smaller pieces. Large globules of injested fat entering the duodenum are emulsified by bile salts. The ester linkages in triglycerides found within micelles are broken down by pancreatic lipases to produce fatty acids. Fatty acids diffuse into jejunal epithelial cells.

1. Mechanical digestion in the stomach breaks up injested food into smaller pieces. 2. Large globules of injested fat entering the duodenum are emulsified by bile salts.

3. The ester linkages in triglycerides found within micelles are broken down by pancreatic lipases to produce fatty acids.

4. Fatty acids diffuse into jejunal epithelial cells. 5. Triglycerides are resynthesized inside of jejunal epithelial cells, and are packaged into chylomicrons.

6. Chylomicrons are expelled into the interstitial fluid on the basal side of the jejunal epithelium, and then pass into the lacteals.

Question 7

2 out of 2 points

Severe damage to the pancreas could affect the digestion of which types of macronutrients? Chose all of the correct answers. Selected Answers: Fats

Proteins Carbohydrates Nucleic Acids Fats Proteins Carbohydrates Nucleic Acids

Answers:

Question 8

1 out of 1 points

Plasma CCK levels would be decreased after consuming a large piece of cheese compared to fasting plasma CCK levels. Selected Answer: False Answers:

True False

Question 9

3 out of 3 points

Match the digestive molecule to the cell or organ type that produces the molecule Question

Selected Match

salivary amylase G. salivary gland pepsinogen

A. chief cell in stomach

gastric acid

B. parietal cell in stomach

bicarbonate

E. both pancreatic cells and mucus neck cells

trypsinogen

F. pancreatic cells

enteropeptidase

H. duodenal cells

lipases

F. pancreatic cells

bile salts

D. liver cells

All Answer Choices A. chief cell in stomach B. parietal cell in stomach C. gallbladder cells

D. liver cells E. both pancreatic cells and mucus neck cells F. pancreatic cells G. salivary gland H. duodenal cells

Question 10

1 out of 1 points

Enzymes that are capable of breaking the ester linkages between fatty acids and glycerol are called... Selected Answer: Lipases

Question 11

2 out of 2 points

Which of the following hormones would be found at increased levels after a meal consisting of 4 servings of this food? Choose all of the correct answers.

Selected Answers: CCK

Answers:

Insulin gastrin secretin CCK Insulin gastrin Glucagon secretin

Question 12

2 out of 2 points

Match each organ with the description of the types of chemical digestion that occur within it. Each description is used only once. Question

Selected Match

Oral Cavity

C. Digestion of carbohydrates only

Stomach

B. Digestion of proteins only

Small intestine

D. Digestion and absorption of fats, proteins and carbohydrates

Large Intestine A. Absorption of some microbial products All Answer Choices A. Absorption of some microbial products B. Digestion of proteins only C. Digestion of carbohydrates only D. Digestion and absorption of fats, proteins and carbohydrates

Question 13

2 out of 2 points

The calcium in this food is absorbed from the small intestine with the help of: Selected Answer: Vitamin D Answers:

Vitamin A Vitamin D Vitamin E Vitamin K

Question 14

1 out of 1 points

Match the following structures with the correct descriptions. Question

Selected Match

Fat Globules

A. After mechanical digestion in the stomach, dietary triglycerides are found in these large structures in the chyme.

Micelles

C. Bile salts emulsify the contents of the chyme to form these structures, which also contain fat-soluble lipases that digest triglycerides into monoglycerides and fatty acids.

Chylomicrons B.

Intestinal epithelial cells package triglycerides that have been resynthesized from absorbed monomers into these structures, then exocytose them for transport in the lacteals. All Answer Choices A. After mechanical digestion in the stomach, dietary triglycerides are found in these large structures in the chyme. B. Intestinal epithelial cells package triglycerides that have been resynthesized from absorbed monomers into these structures, then exocytose them for transport in the lacteals. C. Bile salts emulsify the contents of the chyme to form these structures, which also contain fat-soluble lipases that digest triglycerides into monoglycerides and fatty acids.

Question 15

3 out of 3 points

Place the following structures in the order a bolus of food would pass through them Answers

Selected Answer

esophagus

1. oral cavity

jejunum

2. esophagus

large intestine

3. stomach

ileum

4. pyloric sphincter

ileocecal valve (a sphincter that separates two digestive regions)

5.duodenum

pyloric sphincter

6. jejunum

duodenum

7. ileum

rectum

8. ileocecal valve (a sphincter that separates two digestive regions)

oral cavity

9. large intestine

stomach

10. rectum

Question 16

1 out of 1 points

Movement of injested food through the digestive system is unidirectional in animals using alimentary canals and in animals using gastrovascular cavities. Selected Answer: False Answers:

True False

Thursday, December 2, 2021 4:25:11 PM EST

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