Human Physiology - Digestion Questions and Answers

Which of the following pictures represent a mature pine ovule that is ready to be fertilized Select one O A B and C O A B and D O A and B C and E O E only A D B Time le E

What is trauma cognitive behavioural therapy Please explain in a paragraph and in your own words no Al

What factors contribute to storage of excess energy as triacylglycerc Fat Storage A Good Thing or Not p 760 in the textbook Check all that apply deficiency of vitamin E calorie dense food lack of exercise

Actin bundles give shape and support to flagella microvilli cilia lamellipodia found in intestinal mucosal cells

Which of the following statements about the lipoproteins given in the introduction are true Check all that apply View Available Hint s HDL has a high lipid to protein ratio Lipoprotein densities vary because lipoproteins have different lipid to protein ratios O Lipoproteins are complexes of lipids and proteins OHDL is termed bad cholesterol because it can deposit excess cholesterol in the arteries Chylomicrons are the only lipoproteins that exclusively carry dietary lipids Lipoproteins can be distinguished by their densities and composition Lipoprotein densities increase in the following order chylomicrons VLDLs LDLs HDLs IDLs

A metabolic equivalent is equal to about how many calories 5 1 2 3 15

Question People with the anorexia nervosa pattern of disordered eating typically display what behaviors characteristic s Select all that apply Select 3 correct answer s Insist that weight gain makes them feel fat Admit that they look emaciated but feel fine Tend to have a pre ocupation with food Are usually obedient dutiful and great students Insist that weight gain makes them feel lean Are usually obnoxious non compliant and poor students

How do symbiotic bacteria play a role in keeping us healthy Select 3 correct answer s product cells that attack foreign invaders produce proteins to help us build and repair tissue make our skin more acidic to reduce growth of other micro organisms hijack our cells to reproduce themselves make our skin more basic so it is hospitable to other bacteria produce enzymes that help us digest food 00000

In prokaryotes initiation of transcription involves Obinding of the TATA Binding Proteins TBP to the TATA box and recruitment of RNA Polymerase scanning of the DNA by RNA Polymerase holoenzyme the core together with the TATA Binding Protein TBP until they finds and binds a promoter scanning of the DNA by RNA Polymerase binding a sigma factor until the latter finds and binds a promoter binding of a Rho factor to a stem loop structure and recruitment of RNA Polymerase O assembly of the transcription initiation complex near a start codon

Figure 14 1 illustrates a reflex arc directing which organ O the stomach Othe the eye the heart the liver

Microtubules have an outer diameter of 25mm True False

Experiments on 1 starch were set up under different conditions Test tube L Starch amylase Starch boiled amylase Test tube N Starch hydrochloric acid amylase 37 C After 15 minutes each sample was tested with iodine solution and Benedict s solution Create a table to show the expected results in each test tube for both iodine solution an Benedicts Solution Test tube M a b Name the process which occurred in Test tube L but not in Test tubes M and N What role do enzymes play during digestion d 1 Describe how you would test a solution for the presence of proteins Explain why proteins are important in the human diet Describe the function of hydrochloric acid and pepsin in the stomach c 37 C e 37 C

Connexin is part of the structure of tight junctions cadherins adherens

Question 3 Match the terms on the left to the correct explanation on the pull down menu Enzymes Activation energy Active site Conformational change Question 4 0 5 pts Choose Choose Biological catalysts Substrate s modification that uses the enzyme Site where the substrate binds Enzymatic structural modification that causes the substrate s change Energy required to initiate a chemical reaction 0 5 pts

none of them both FAD and NAD NAD FAD Question 4 0 5 points Listen If 2 glucose molecules enter a cell and are used during aerobic cellular respira which of the following would result in the Kreb s cycle 4 FADH2 6 NADH 3 NADH

5 The enzyme Occur is required to split sucrose into monosaccharides before fermentation

Frequency 0 8 0 6 0 4 0 2 Generation 5 1 Allele and Phenotype Frequencies 2 3 Generation 4 5 Red Allele Blue Allele Red Phenoty Purple Phen Blue Phenot

4 Stopping distances and severity of crashes FO Decrease as vehicle speed increases Are not affected by vehicle speed

When you drive in heavy fog during dayli should drive with O Headlights off O Parking lights are on Headlights on low beam on high beam

Part A Identity C A

Study the following diagram The goal of both foreign and domestic companies Which of the following completes the diagram O Please the customer service BEST Provide top notch custome O Provide an acceptable warranty

D O Superficial O Proximal O Dorsal Distal Question 4 Which of the following is not a vertical plane O Transverse

The innermost layer and the outermost layer of the esophagus are both made out of tissue a epithelial Ob connective Oc muscle

There are 3 subtypes of muscle tissue Which type of muscle tissue would you find in the wall of the stomach skeletal muscle cardiac muscle smooth muscle

Question 4 Points 3 How long did Thoreau live on Walden Pond 2 months 6 months O 1 year O 2 years

Allele frequency 1 00 0 90 0 80 0 70 0 60 0 50 0 40 0 30 0 20 0 10 b 0 0 mm 20 40 m Generation 60 80 O can become fixed in the population due to positive selection O can become fixed or be lost due to genetic drift O can be lost from the population due to negative selection is usually still present at a frequency of 0 5 at the end of the simulation Population 1 Population 2 Population 3 Population 4 Population 5 100 This image was shown and discussed in Video 4 3 Choose the best ending to a statement describing what is shown in this image that begins with In a population of 100 individuals undergoing 100 sequential rounds of computer simulated reproduction under random mating conditions an allele whose initial frequency in the population is 0 5

What is the IUPAC name for the following alcohol OH

polar covalent Donas ionic bonds Question 17 1 point Listen Which of these bonds will be NONPOLAR Mark ALL that are true a a bond where the electrons are shared equally b a bond where the electrons are pulled more toward one side c a bond where the atoms sharing the electrons are the same such as two hydrogen ions d a bond between carbon and hydrogen e a bond between oxygen and hydrogen Question 18 1 point Listen When you digest food the body breaks large macromolecules into smaller molecules for absorption Based on this information what kind of chemical reactions are involved in digestion a catabolic reactions Ob exchange reactions

When you digest food the body breaks large macromolecules into smaller molecules for absorption Based on this information what kind of chemical reactions are involved in digestion O a catabolic reactions Ob exchange reactions Oc anabolic reactions

Listen What is the difference between a community and an ecosystem An ecosystem includes only abiotic factors Communities contain only one species whereas ecosystems include many species A commuity is larger than an ecosystem O An ecosystem is a community plus the physical environment of that area nities

8 Describe the conditions and challenges facing organisms living in the intertidal zone

Taste receptors are found primarily on the tongue but may also be found A in the olfactory epithelium B throughout the nasal passages C in the soft palate and pharynx

Which of the following statements is a reasonable explanation for why unsaturated fatty acids help keep a membrane more fluid at lower temperatures Unsaturated fatty acids are more nonpolar than saturated fatty acids The double bonds form kinks in the fatty acid tails preventing adjacent lipids from packing tightly The double bonds block interaction among the hydrophilic head groups of the lipids Unsaturated fatty acids have a higher cholesterol content which prevents adjacent lipids from packing tightly

ne Transition reveal several e tongue is the mouth It is capture prey visible as ted teeth omerine maxillary teeth use tel wing objects the outside of the teeth will also derlined mage nostrils vomerine teeth tongue

17 Describe how hormones regulate digestion

Which small organ stores bile until it is needed for digestion Liver Gallbladder Appendix Pancreas Humans can live without a spleen True False

17 Mucosal immunity review figures of small and large intestine respiratory tract What cell types are found there What is their function Why is gut tolerance homeostasis important intering is larger more diverse Microbion

Which of the following structures are part of the digestive tube allimentary canal through which food moves Select all that apply esophagus stomach liver large intestine pancreas Question 26 3 points

Pepsin is a digestive enzyme that begins the hydrolysis of proteins in the stomach is denatured and rendered inactive in solutions with low pH helps stabilize fat water emulsions is manufactured by the pancreas splits maltose into monosaccharides

The mammalian trachea and esophagus both connect to the rectum large intestine stomach pharynx small intestine

Salivary amylase digests starches protein maltose monosaccharides glucose

absorption of fats differs from that of carbohydrates in that the wser Webcam fat absorption occurs in the stomach whereas carbohydrates are absorbed from the small intestine fats but not carbohydrates are digested by bacteria before absorption processing of fats does not require any digestive enzymes whereas the processing of carbohydrates does carbohydrates need to be emulsified before they can be digested whereas fats do not most absorbed fat first enters the lymphatic system whereas carbohydrates directly enter the blood

When the digestion and absorption of organic molecules results in more energy rich molecules than are immediately required by an animal the excess is eliminated in the feces oxidized and converted to ATP stored as starch in the liver stored as glycogen in the liver and muscles hydrolyzed and converted to ADP

ter surgical removal of an infected gallbladder a person must be especially careful to restrict dietary intake of fat sugar water protein starch

Certain nutrients are considered essential in the diets of some animals because the nutrients are subunits of important polymers only those animals use those nutrients the nutrients are necessary coenzymes these animals are not able to synthesize these nutrients only certain foods contain them

vantage of a complete tube digestive system over a gastrovascular cavity is that the complete system allows specialized functions in specialized regions allows extensive branching excludes the need for extracellular digestion allows digestive enzymes to be more specific O facilitates intracellular digestion Question 23 1 point

ain how the small intestine has such a large internal surface area even though t takes up only a relatively small portion of the body cavity Why is surface are important for this organ

Which of the following digestive structures are NOT part of the digestive tube alimentary canal through which food moves Select all that apply esophagus trachea Oliver small intestine gall bladder Question 26 3 points

O stive secretions with a pH of 2 are characteristic of the pancreas Ostomach small intestine liver mouth Question 22 1 point Listen

ws show materials flowing into one structure where these fut Why the name of the structure gall bladder stomach Oliver Oduodenum