PLEASE HELPP ME EASY $10

Jul 16th, 2015
DreamIt
Category:
Science
Price: $10 USD

Question description

The breakdown of complex food molecules into simpler ones is chemical digestion.


Please select the best answer from the choices provided



In human digestion, the correct sequence of processes is:

a.

absorbtion, digestion, elimination

b.

digestion, absorption, elimination

c.

elimination, digestion, absorbtion

d.

none of the above


Please select the best answer from the choices provided



The involuntary wave of contractions that keep food moving in one direction is called ___.

a.

absorption

b.

peristalsis

c.

esophagus

d.

none of the above


Please select the best answer from the choices provided



The fluid that is released in the mouth is called __.

a.

water

b.

saliva

c.

enzymes

d.

proteins


Please select the best answer from the choices provided



The digestive system absorbs nutrients from food.


Please select the best answer from the choices provided



Peristalsis is a voluntary action.


Please select the best answer from the choices provided



What substance in the esophagus lining helps make swallowing easier?

a.

saliva

b.

pepsin

c.

mucus

d.

bile


Please select the best answer from the choices provided



Digestion begins in the stomach.


Please select the best answer from the choices provided



Proteins that help in speeding up a chemical reaction are called ___.

a.

epiglottis

b.

enzymes

c.

lipids

d.

saliva


Please select the best answer from the choices provided



How many layers of smooth muscle help with churning food in the stomach?

a.

one

b.

two

c.

three

d.

four


Please select the best answer from the choices provided


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