Chemistry, 12.12.2019 22:31, Irdk1

both the esophagus and the small intestine are involved in the digestion of food. the esophagus squeezes food into the stomach by wave-like muscle contractions. peptidase enzymes in the small intestine break food molecules into smaller molecules.

which statement best describes changes to food during digestion?

a.

the muscle contractions result in chemical changes, while the action of the peptidase results in physical changes.

b.

the muscle contractions result in physical changes, while the action of the peptidase results in chemical changes.

c.

the muscle contractions and the action of the peptidase both result only in chemical changes.

d.

the muscle contractions and the action of the peptidase both result only in physical changes.

Answers: 1

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 10:00, paynedeforest2596

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at

Answers: 1

continue

Chemistry, 22.06.2019 12:00, BreBreDoeCCx

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal. b. he is determining chemical properties that are sufficient to identify the metal. c. he is determining physical properties that are insufficient to identify the metal. d. he is determining chemical properties that are insufficient to identify the metal.

Answers: 3

continue

Chemistry, 22.06.2019 12:30, hayleyconsole

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.

Answers: 3

continue

Chemistry, 22.06.2019 13:00, rome58

Lab reagent, hypothesis test. a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl. these six measurements are assumed to be an srs of all possible measurements from solution. they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution. carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

Answers: 1

continue

Do you know the correct answer?

both the esophagus and the small intestine are involved in the digestion of food. the esophagu...