Download Review for 6 Week CCA ---Test is 10/5/151. Name 3 functions of the

Review for 6 Week CCA ---Test is 10/5/15
1. Name 3 functions of the digestive system:
a. BREAK DOWN FOOD
10. Give 3 examples of when chemical changes
are occurring during digestion.
b. ABSORB THE NUTRIENTS
a. SALIVA BREAKS DOWN FOOD WITH AN
ENZYME
c. ELIMINATE WASTE
b. STOMACH BREAKS DOWN FOOD WITH ACID
2. What is the formula for a sugar molecule?
C6H12O6. List all the different elements that
make up sugar. CARBON, HYDROGEN, OXYGEN
c. SMALL INTESTINE ABSORBS NUTRIENTS AND
RELEASES THE MOLECULES INTO THE
BLOODSTREAM
Which is the most common? HYDROGEN
11. Give 2 examples of when physical changes
are occurring during digestion.
3. What are things that are living or were once
alive called? ORGANIC COMPOUNDS. Which
element do all living things have? CARBON
4. What are some clues that a chemical change
has occurred? A NEW SUBSTANCE IS FORMED,
BUBBLING OR GAS, IT CANNOT GO BACK TO
WHAT IT WAS BEFORE.
5. Give some examples of a chemical change.
BAKING A CAKE, BURNING PAPER (FORMS ASHA NEW SUBSTANCE), SALIVA DISSOLVING A
CRACKER IN YOUR MOUTH
6. What happens to carbohydrates after we eat
them and they are broken down? THEY ARE
CHEMICALLY CONVERTED INTO ENERGY
7. How did the starch break down in the
cracker? Starch breaks down into GLUCOSE
(sugar) through a CHEMICAL reaction in the
mouth caused by enzymes in the SALIVA.
8. What energy transformations are taking
place during digestion to make you move?
CHEMICALMECHANICAL
9. Which system breaks down large molecules
into smaller molecules? DIGESTION
a. TEETH ARE CHEWING FOOD
b. STOMACH IS CHURNING AND MIXING FOOD
12. Cells are the basic unit of structure, Tissues
are a collection of cells, Organs are a collection
of tissues, Organ systems are a collection of
organs. The stomach is a collection of tissues,
so it is an ORGAN of the digestive system. The
digestive system is a collection of organs, so it is
an ORGAN SYSTEM. Muscles are a collection of
cells, so it is a TISSUE.
13. Answer the questions chemical or physical.
a. _PHYSICAL_Teeth breaking down food into
smaller pieces.
b. _PHYSICAL__Tongue helping shape the food
into a ball to be passed down the esophagus.
c. _PHYSICAL_Esophagus transports food from
the mouth to the stomach.
d. _CHEMICAL_In the stomach, the acid breaks
down food so the body can absorb the
nutrients.
e. CHEMICAL Absorption in the small intestine
14. What kind of energy conversion is occurring
during digestion to keep your organs warm?
CHEMICAL ENERGY--->HEAT ENERGY
15. Mechanical digestion occurs in the MOUTH
and in the STOMACH. Where does most
mechanical digestion occur? STOMACH.
Where does most chemical digestion take
place? SMALL INTESTINE.
16. The villi line the inside of the SMALL
INTESTINE. What is the purpose of the villi? TO
ABSORB THE NUTRIENTS and INCREASE
SURFACE AREA.
17. How do you know when work is being
done? WHEN THE OBJECT MOVES IN THE
DIRECTION YOU ARE EXERTING THE FORCE.
Give an example of when work is being done.
WHEN YOU ARE PUSHING A DESK ACROSS THE
FLOOR AND IT MOVES TO THE OTHER SIDE OF
THE ROOM.
The results of the tests on the four unknown
substances are shown below. Which of the
unknown substances does not react so therefore
cannot contain an organic substance?
Biuret’s
Blue
Benedict’s
Blue
B
Blue
Brick Red
C
Lavender
Blue
D
Blue
Blue
Substance
A
a.
b.
SUBSTANCE A c.
Substance B
d.
Iodine
RedBrown
RedBrown
RedBrown
Black
Substance C
Substance D
21. The digestive system below contains a
mouth, a salivary gland, a stomach, a duodenum
(small intestine), and a pancreas. If you were
missing the organs to break down fat and
protein, not all of these foods would be able to
completely digest.
18. Which systems allows you to chew food by
creating movement that acts like a lever?
MUSCULAR and SKELETAL.
19. Which system gives the body structure and
the ability to move? SKELETAL
Which of the following foods will digest
most completely in this system?
20. Indicators detect the presence of certain
substances. They will usually change colors in
the presence of certain substances. The
following indicators were be used to test for
these compounds in four unknown materials.
Indicator
Lugol /
Iodine
Original
Color
Redbrown
Test
Substance
Starch
Benedict’s
Blue
Sugar
Biuret’s
Blue
Protein
Final
Color
Navy blue,
purple,
black
Yelloworange,
Brick red
Lavender
o
A. Chicken
o
B. Ice cream
o
C. Butter
o
D. Pasta