Ask Question, Ask an Expert


Ask Biology Expert

describe understanding the anatomy and physiology of digestive system

1._____________ is associated with food stretching the stomach as well as activating myenteric and vasovagal reflexes which in turn stimulate gastric secretions.
1) The cephalic phase
2) The gastric phase
3) The intestinal phase
4) The gastrointestinal phase
5) The mesenteric phase
2.____________ transport lipids to the surface of the intestinal absorptive cells, which process them into _________________.
1) Fat droplets; micelles
2) Fat droplets; chylomicrons
3) Micelles; fat globules
4) Micelles; chylomicrons
5) Fat globules; micelles
3. describe these nutrients are all absorbed without being digested except
1) water.
2) vitamins.
3) proteins.
4) minerals.
5) cholesterol.
4. describe Absorption of many nutrients starts in the stomach.
1) True
2) False
5. describe most fat is digested by pancreatic lipase.
1) True
2) False
6. describe the digestive system processes food, extracts nutrients, and eliminates the residue.
1) True
2) False
7. describe why are several digestive enzymes secreted as zymogens?
1) because this saves one step in their synthesis
2) because gastric cells do not have the necessary enzymes for their synthesis
3) so they start digesting intracellular proteins of the gastric cells more quickly
4) so they act only in the stomach lumen and do not digest intracellular proteins
5) so they can start digesting dietary proteins more quickly
8. describe the small intestine has a very large absorptive surface associated with all these structures except
1) circular folds (plicae circulares).
2) intestinal length.
3) microvilli.
4) villi.
5) rugae.
9. describe the buccal phase of swallowing is under _____________ control and the pharyngo-esophageal phase is ______________.
1) central nervous system; also controlled by the central nervous system
2) central nervous system; controlled by autonomic reflexes
3) autonomic nervous system; controlled by autonomic reflexes
4) voluntary; also voluntary
5) involuntary; also involuntary
10. describe chemical digestion breaks down ____________ into _____________.
1) proteins- nucleotides
2) amino acids, proteins
3) polysaccharides and amino acids
4) nucleic acids and nucleotides
5) fatty acids and cholesterol
11.______________ is a hormone and whereas ________________ is an enzyme.
1) Enterokinase and pepsin
2) Gastrin and secretin
3) Gastrin and cholecystokinin (CCK)
4) Gastric lipase and histamine
5) Secretin and pepsin
12. describe acid reflux into the esophagus ("heartburn") is normally prevented by
1) pharyngeal constrictors.
2) the upper esophageal sphincter.
3) the lower esophageal sphincter (LES).
4) esophageal glands.
5) pharyngeal and buccal sphincters.
13. describe Amino acids and monosaccharides are absorbed in the ____________, and fatty acids are absorbed in the _______________.
1) small intestine and large intestine
2) small intestine and liver
3) stomach and small intestine
4) stomach and large intestine
5) small intestine and small intestine too
14. describe both pancreatic juice and bile are secreted into the duodenum.
1) True
2) False

Biology, Academics

  • Category:- Biology
  • Reference No.:- M917539

Have any Question? 

Related Questions in Biology

Biological system is amazing a fellow student claims it can

"Biological system is amazing", a fellow student claims, "it can drive any thermodynamically unfavorable reaction forward, and does not need to follow the thermodynamic laws." How would you respond to this statement? Giv ...

Write the null and research hypotheses for the following

Write the null and research hypotheses for the following description of a research study: A group of middle-aged men was asked to complete a questionnaire on their attitudes toward work and family. Each of these men is m ...

Dna and rnacompare and contrast dna and rna discuss why

DNA and RNA Compare and contrast DNA and RNA. Discuss why humans did not evolve with one central repository of DNA, but rather it is replicated throughout the body? Your assignment should be 250-500 words in length.

Evolutionary biology in the age of genomics- q1

Evolutionary Biology in the age of Genomics- Q1. Phylogenetic trees- You are analyzing sequences sampled from four turtle species (A-D), considering a genomic region that is 75 base pairs long. You observe the following ...

Trypanosoma brucei is the agent that causes african

Trypanosoma brucei is the agent that causes African sleeping sickness in humans bitten by the tsetse fly. Glycolysis is unusual in this organism, providing an opportunity to create drugs that poison the parasite without ...

Write a paper of 500-750 words not including the title page

Write a paper of 500-750 words (not including the title page and reference page) paper on Evidence-Based Solution on adoptions of Electronic Medical Record (EMR). Address the following criteria: 1. Proposed Solution: (a) ...

You have been asked to investigate a new procedure that

You have been asked to investigate a new procedure that physicians would like nurses to adopt in the hospital. Discuss the process you would apply to determine whether the procedure falls within the RN scope of practice ...

Answer in a word or sentence1 what is decibel name any one

Answer in a word or sentence: 1. What is decibel? Name any one source that can produce noise of about 120 decibel. 2. What are the effects of smog on plants? 3. Define Pollutants with any one example. 4. What is acid rai ...

Experiment 4 exercise 1 mitosis in a plant cellread through

Experiment 4 Exercise 1: Mitosis in a Plant Cell Read through the Experiment 4 Introduction material before starting. In this exercise we will look at the different stages of mitosis in onion cells. The length of the cel ...

Given the equation del g del h- t del s what is the effect

Given the equation del G= del H- T del S, what is the effect of temperature on the free energy of the nucleic acid structure if base stacking between base pairs in double stranded DNA is enthalpically driven and entropic ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate