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Ch. 14-The digestive system and metabolism

Total questions: 194

Worksheet time: 2hrs 2mins

Name
Class
Date
1.

The teeth chew food and the stomach churns food into smaller particles. What is the name of this process?

a)

chemical digestion

b)

mechanical digestion

c)

absorption

d)

enzyme activity

2.
Where does digestion start?
a)
stomach
b)
mouth
c)
esophagus
3.
 What is the main job of the digestive system? 
a)
break down foods into nutrients that can be used by the body
b)
take in oxygen and exhale waste like carbon dioxide
c)
pump blood throughout the body
d)
makes the body hungry
4.
Muscular tube that connects the mouth to the stomach
a)
Epiglottis
b)
Peristalsis
c)
Stomach
d)
Esophagus
5.
stores bile produced by liver
a)
liver
b)
gallbladder
c)
pancreas
6.
Which organ releases digestive chemicals into the small intestine to help with digestion?
a)
gallbladder
b)
stomach
c)
liver
d)
pancreas
7.
The tube after the small intestine where the liquid is absorbed.
a)
large intestine
b)
small intestine
c)
rectum
d)
stomach
8.
A series of wave-like muscle contractions that moves food to different processing stations in the digestive tract.
a)
adduction
b)
primary wave
c)
peristalsis
d)
inversion
9.
Which organ does most of the chemical digestion of food and allows nutrients to be absorbed into the body?
a)
stomach
b)
esophagus
c)
small intestine
d)
liver
10.
Predict the next digestive system organ in the following sequence: mouth, pharynx, esophagus, stomach, ______
a)
liver
b)
kidneys
c)
small intestines
d)
large intestines
11.
Which secondary organ produces insulin and other digestive juices to further break down the food in the small intestines?
a)
liver
b)
gallbladder
c)
mouth
d)
pancreas
12.
Which organ of the excretory system stores urine until the body is ready to eliminate it?
a)
ureters
b)
urethra
c)
urinary bladder
d)
urea
13.
Under normal conditions, which of the following substances is found in urine?
a)
blood cells
b)
protein
c)
glucose
d)
urea
14.
Which excretory organ eliminates water and some chemical wastes in perspiration?
a)
lungs
b)
skin
c)
liver
d)
kidneys
15.
What function do the kidneys perform?
a)
eliminate carbon dioxide
b)
supply oxygen to body cells
c)
remove urea and excess water
d)
play a role in gas exchange
16.
Urine flows out of the kidneys through narrow tubes called
a)
Gallbladder
b)
Ureter
c)
Nephrons
d)
Urethra
17.
Tiny filtering structures where urine is produced in the kidneys are called
a)
ureters.
b)
alveoli.
c)
nephrons.
d)
bronchi.
18.

What toxic substance is excreted in the urine?

a)

Glucose

b)

Sodium ions

c)

Carbon dioxide

d)

Urea

19.

The organ that produces bile

a)

stomach

b)

pancreas

c)

gall bladder

d)

liver

20.

Bile is a chemical that helps break down

a)

fats

b)

proteins

c)

carbohydrates

d)

glucose

21.

What is a calorie?

a)

Unit that measures the speed of light

b)

Unit that measures how much you weigh

c)

Unit that measures how much energy a particular food provides to the body

d)

Unit that measures how happy you are

22.

What is metabolism

a)

Chemical reactions in the body's cells that change food to energy

b)

Mechanical reactions in the body that pushes food in your digestive system

c)

Another word for food

d)

Chemical reaction in the body's cell that is poisonous!

23.

Which of the following affects your daily calorie need?

a)

Age

b)

Weight

c)

Gender

d)

Activity

e)

All of the answers are correct

24.

What happens to your body if you burn fewer calories than you consume?

a)

Lose Weight

b)

Gain Weight

c)

Maintain Weight

25.

What happens when you lose more calories that you eat.

a)

Lose Weight

b)

Gain Weight

c)

Maintain Weight

26.

How many calories are in 1 pound?

a)

1,000

b)

2,000

c)

3,000

d)

3,500

27.

How many calories are in 1 gram of carbohydrates?

a)

4

b)

9

c)

10

d)

7

28.

How many calories are in 1 gram of protein?

a)

4

b)

9

c)

10

d)

7

29.

How many calories are in 1 gram of fat?

a)

4

b)

9

c)

10

d)

7

30.

Calculate how many calories are in protein by reading the food label.

a)

63

b)

220

c)

36

d)

35

31.

Calculate how many calories are in carbohydrates by reading the food label.

a)

104

b)

100

c)

26

d)

220

32.

Calculate how many calories are in fat by reading the food label.

a)

9

b)

4

c)

81

d)

36

33.

Princess Penelope is 18 years old, 5 ft 2, and weighs 120 lbs. Calculate her BMR.


BMR= 655 + (4.35 x Weight in Pounds) + (4.7 x Height in Inches) - (4.7 x Age in Years)

a)

1,500

b)

1,383.8

c)

1,400

d)

1,430.8

34.

Prince Jose is 18 years old, 6 ft 4, and weights 200 lbs.


Calculate his BMR using the formula.

BMR = 66 + (6.23 x Weight in Pounds) + (12.7 x Height in Inches) - (6.8 x Age in Years)

a)

2,200

b)

2,000

c)

2,432.9

d)

2,154.8

35.

If Kat is eating 2000 calories and wants 45% to be carbohydrates, how many calories will it be?

a)

800

b)

900

c)

1000

d)

9000

36.

If Macy is eating 1,500 calories and wants 20% to be protien, How many calories will it be?

a)

100

b)

350

c)

300

d)

400

37.

If Paco is eating 2,200 calories and wants 30% to be fat, how many calories is it ?

a)

600

b)

660

c)

500

d)

450

38.

Paco wants to know how much water to drink. He weighs 160 lbs and does not exercise.


Weight x 2/3 ( or.67) = ounces of water

a)

107.2 oz

b)

100 oz

c)

140 oz

d)

110.4 oz

39.

Which of the following is NOT an accessory organ of the digestive system?

a)

Mouth

b)

Gall Bladder

c)

Liver

d)

Pancreas

40.

Which structure seals off the trachea when swallowing so that food & fluid do not go "down the wrong pipe" and cause choking?

a)

Uvula

b)

Epiglottis

c)

Soft Palate

d)

Esophagus

41.

Which of the following is NOT part of the stomach?

a)

Cardia

b)

Fundus

c)

Duodenum

d)

Pylorus

42.

In which organ does nutrient absorption occur in digestion?

a)

Esophagus

b)

Stomach

c)

Small Intestine

d)

Large Intestine

43.

Which salivary gland is located under the tonue?

a)

Parotid Gland

b)

Sublingual Gland

c)

Submandibular Gland

d)

None of these

44.

Amylase, a digestive enzyme, is responsible for the chemical breakdown of which macronutrient?

a)

Carbohydrates

b)

Fats

c)

Lipids

d)

Proteins

45.

Which digestive hormone promotes the release of Hydrocholoric Acid and Gastric Juice?

a)

CCK

b)

Gastrin

c)

Ghrelin

d)

Secretin

46.

Which digestive hormone makes a person feel "full"?

a)

CCK

b)

Gastrin

c)

Insulin

d)

Secretin

47.

Which teeth are the largest and best for grinding & mashing food?

a)

Bi-cuspids

b)

Canines

c)

Incisors

d)

Molars

48.

Which organ in the alimentary canal is responsible for re-absorbing water from indigestible food remnants?

a)

Colon (Large Intestine)

b)

Mouth

c)

Small Intestines

d)

Stomach

49.
This is an image of the
a)
stomach
b)
small intestine
c)
esophagus
d)
large intestine
50.
What is the function of the digestive system?
a)
to break down and absorb nutrients
b)
to support and protect our bodies
c)
to produce vitamin D
d)
to help us move
51.

Which of the following correctly describes the purpose of digestion?

a)

To break down complex food molecules into simple soluble molecules

b)

To make complex food molecules from simple soluble molecules

c)

To make use of simple soluble food molecules

d)

To remove complex food molecules from the body

52.

Large food molecules need to be broken down to be small enough to pass through cell membranes.

a)

True

b)

False

53.

Which enzyme does the stomach produce?

a)

amylase

b)

lipase

c)

maltase

d)

protease

54.

Where is the digestion of food completed?

a)

liver

b)

large intestine

c)

stomach

d)

small intestine

55.

Why is the oesophagus muscular?

a)

To break the food into even smaller pieces

b)

To produce enzymes to digest food

c)

To push food from the mouth into the stomach

d)

To move the food back and forth in two directions

56.

Where does carbohydrate digestion begins?

a)

liver

b)

mouth

c)

oesophagus

d)

stomach

57.

Where does protein digestion begins?

a)

large intestine

b)

mouth

c)

small intestine

d)

stomach

58.

Select all the enzymes present in the intestinal juice.

a)

amylase

b)

lipase

c)

maltase

d)

protease

59.

Which of the following kills bacteria in the human alimentary canal?

a)

gastric juice

b)

mucus

c)

pancreatic juice

d)

saliva

60.

Which of the following is not a final product of digestion?

a)

Maltose

b)

fatty acids and glycerol

c)

amino acids

d)

glucose

61.

A part of digestive system that secretes bile for emulsifying fats

a)

Liver

b)

Lungs

c)

Gall Bladder

d)

Pancreas

62.

Which organ stores bile?

a)

stomach

b)

gallbladder

c)

pancreas

d)

liver

63.
Which type of digestion produces physical change to the food by breaking food into smaller pieces?
a)
chemical
b)
peristalsis
c)
mechanical
d)
saliva
64.
How does food move through your digestive system?
a)
by gravity pulling it down
b)
when we eat more food, it forces the rest down
c)
muscle movements called peristalsis
d)
electromagnetic force
65.
What organ is this?
a)
stomach
b)
small intestine
c)
large intestine
d)
esophagus
66.
When many large carbohydrates are chemically digested they are broken into many smaller _____
a)
proteins
b)
amino acids
c)
simple sugars
d)
enzymes
67.
Where does chemical digestion begin?
a)
mouth
b)
esophagus
c)
stomach
d)
small intestine
68.

At the end of the digestion process, protein will be broken down into

a)

glucose

b)

amino acid

c)

polypeptide

d)

glycerol and fatty acid

69.

At the end of the digestion process, fat will be broken down into

a)

fatty acid and glycerol

b)

glucose

c)

amino acid

d)

fatty acid

70.

What is A pointing to?

a)

Salivary glands

b)

Mouth

c)

Pharynx

d)

Esophagus

e)

Rectum

71.

What is B pointing to?

a)

Salivary glands

b)

Mouth

c)

Pharynx

d)

Esophagus

e)

Rectum

72.

What is C pointing to?

a)

Salivary glands

b)

Mouth

c)

Pharynx

d)

Esophagus

e)

Rectum

73.

What is D pointing to?

a)

Salivary glands

b)

Mouth

c)

Pharynx

d)

Esophagus

e)

Rectum

74.

What is E pointing to?

a)

Liver

b)

Gallbladder

c)

Stomach

d)

Pancreas

e)

Small Intestines

75.

What is F pointing to?

a)

Liver

b)

Gallbladder

c)

Stomach

d)

Pancreas

e)

Small Intestines

76.

What is G pointing to?

a)

Liver

b)

Gallbladder

c)

Stomach

d)

Pancreas

e)

Small Intestines

77.

What is H pointing to?

a)

Liver

b)

Gallbladder

c)

Stomach

d)

Pancreas

e)

Small Intestines

78.

What is i pointing to?

a)

Large Intestines

b)

Anus

c)

Stomach

d)

Rectum

e)

Small Intestines

79.

What is J pointing to?

a)

Large Intestines

b)

Anus

c)

Stomach

d)

Rectum

e)

Small Intestines

80.

What is K pointing to?

a)

Large Intestines

b)

Anus

c)

Stomach

d)

Rectum

e)

Small Intestines

81.

What is L pointing to?

a)

Large Intestines

b)

Anus

c)

Stomach

d)

Rectum

e)

Small Intestines

82.

gastr

a)

stomach

b)

food

c)

nourish

d)

liver

83.

aliment

a)

stomach

b)

food

c)

nourish

d)

liver

84.

nutri

a)

stomach

b)

food

c)

nourish

d)

liver

85.

hepat

a)

stomach

b)

food

c)

nourish

d)

liver

86.

rect

a)

straight

b)

intestines

c)

hairy

d)

to soak up

87.

enter

a)

straight

b)

intestines

c)

hairy

d)

to soak up

88.

vill

a)

straight

b)

intestines

c)

hairy

d)

to soak up

89.

sorpt

a)

straight

b)

intestines

c)

hairy

d)

to soak up

90.

lingu

a)

tongue

b)

around

c)

juice

d)

to soak up

91.

peri

a)

tongue

b)

around

c)

juice

d)

to soak up

92.

chyme

a)

tongue

b)

around

c)

juice

d)

to soak up

93.

Digestive system doesn't run well during stressful times.

a)

True

b)

False

94.

Functions of the digestive system. (select multiple)

a)

ingest

b)

absorb

c)

defecate

d)

accessory organs

e)

gastritis

95.

chemical and physical breakdown of food into forms the cells can use

a)

digestion

b)

chemical

c)

physical

d)

alimentary canal

96.

If a medication needs to be ingested it goes

a)

on skin

b)

in mouth

c)

in anus

d)

up the nose

97.

A patient needs to defecate, so you

a)

take them to the bathroom

b)

brush their teeth

c)

give them a pan to throw up in

d)

call the dr immediately

98.

Chewing food in your mouth with your teeth and tongue is a form of

a)

physical digestion

b)

chemical digestion

c)

metabolism

d)

peristalsis

99.

Saliva breaking down carbs is a form of

a)

physical digestion

b)

chemical digestion

c)

metabolism

d)

peristalsis

100.

Food moving through the intestines is

a)

physical digestion

b)

chemical digestion

c)

metabolism

d)

peristalsis

101.

nutrients being changed into energy

a)

physical digestion

b)

chemical digestion

c)

metabolism

d)

peristalsis

102.

food after it had been processed in the stomach

a)

chyme

b)

bolus

c)

microvilli

d)

uvula

103.

food in the mouth mixed with saliva

a)

chyme

b)

bolus

c)

microvilli

d)

uvula

104.

back of the mouth, looks like a finger, keeps food out of nose

a)

chyme

b)

bolus

c)

microvilli

d)

uvula

105.

very small finger-like projections that absorb nutrients

a)

chyme

b)

bolus

c)

microvilli

d)

uvula

106.

Which is part of the small intestines?

a)

duodenum

b)

jejunem

c)

ileum

d)

cecum

107.

which is the correct order?

a)

duodenum, jejunem, ileum

b)

ileum, jejunem, duodenum

c)

duodenum, ileum, jejunem

d)

jejunem, ileum, duodenum

108.

which. is the correct order?

a)

cecum, ascending, transverse, descending, sigmoid, rectum, anus

b)

cecum, sigmoid, rectum, anus, ascending, transverse, descending

c)

ascending, transverse, descending, cecum, sigmoid, rectum, anus

d)

sigmoid, rectum, cecum, ascending, transverse, descending, anus

109.

Pick the accessory organs

a)

Teeth

b)

Pancreas

c)

Mouth

d)

Salivary Glands

e)

Stomach

110.

Pick the accessory organs

a)

Liver

b)

Pancreas

c)

Mouth

d)

Gallbladder

e)

Colon

111.

Small intestines breakdown

a)

carbohydrates

b)

fat

c)

protein

d)

fiber

112.

Carbohydrates start to be broken-down by

a)

saliva

b)

teeth

c)

tongue

d)

pharynx

113.

muscle at the top of the stomach is not closing, stomach acid goes into the esophagus

a)

heartburn

b)

gastritis

c)

enteritis

d)

diarrhea

114.

inflammation of the stomach

a)

heartburn

b)

gastritis

c)

enteritis

d)

diarrhea

115.

inflammation of the intestines

a)

heartburn

b)

gastritis

c)

enteritis

d)

diarrhea

116.

watery stools

a)

heartburn

b)

gastritis

c)

enteritis

d)

diarrhea

117.

inflammation of the stomach and intestines

a)

gastroenteritis

b)

constipation

c)

ulcer

d)

jaundice

e)

hepatitis

118.

food/waste stays in large intestines too long

a)

gastroenteritis

b)

constipation

c)

ulcer

d)

jaundice

e)

hepatitis

119.

erosion of mucus lining of stomach or small intestines

a)

gastroenteritis

b)

constipation

c)

ulcer

d)

jaundice

e)

hepatitis

120.

bile gets into the bloodstream

a)

gastroenteritis

b)

constipation

c)

ulcer

d)

jaundice

e)

hepatitis

121.

cancer of large intestines

a)

colon cancer

b)

diverticulitis

c)

diverticula

d)

cirrhosis

e)

gallstones

122.

inflammation of the liver caused by a virus

a)

gastroenteritis

b)

constipation

c)

ulcer

d)

jaundice

e)

hepatitis

123.

inflammation of a diverticula

a)

colon cancer

b)

diverticulitis

c)

diverticula

d)

cirrhosis

e)

gallstones

124.

mucus protrudes through colon wall, then the wall becomes weak

a)

colon cancer

b)

diverticulitis

c)

diverticula

d)

cirrhosis

e)

gallstones

125.

chronic inflammatory condition of the liver, liver becomes damaged, hard and fibrosis

a)

colon cancer

b)

diverticulitis

c)

diverticula

d)

cirrhosis

e)

gallstones

126.

bile stored too long or too much water is removed

a)

colon cancer

b)

diverticulitis

c)

diverticula

d)

cirrhosis

e)

gallstones

127.

no digestion takes place, swallow

a)

D

b)

A

c)

B

d)

C

128.

no digestion takes place, transports food from pharynx to stomach

a)

D

b)

C

c)

B

d)

A

129.

moistens and lubricates food, carbs start to be broken down

a)

D

b)

C

c)

B

d)

A

130.

breaks up food with teeth and tongue

a)

D

b)

C

c)

B

d)

A

131.

churns food, thick mucus protects wall, holds food for 3-4 hours

a)

G

b)

J

c)

I

d)

K

132.

absorb water, prepares feces, contains bacteria to metabolize remaining nutrients

a)

G

b)

J

c)

I

d)

K

133.

completes digestion, absorbs nutrients, acid is neutralized, 3-6 hours for food to move through

a)

G

b)

J

c)

I

d)

K

134.

stores and expels feces

a)

G

b)

J

c)

I

d)

K

135.

Sphincter, opening for eliminating feces

a)

E

b)

F

c)

H

d)

L

136.

hormones raise and lower blood sugar, produce bicarbonate, produce enzymes to break down nutrients

a)

E

b)

F

c)

H

d)

L

137.

stores and concentrates bile, found under the liver

a)

E

b)

F

c)

H

d)

L

138.

makes and stores glucose, stores vitamin A,B and D, break down old hormones, drugs, alcohol, and harmful substances

a)

E

b)

F

c)

H

d)

L

139.

During an upper GI the endoscope goes in to the

a)

nose

b)

mouth

c)

both nose and mouth

140.

An upper GI procedure usually goes into the large intestines.

a)

True

b)

False

141.

A lower GI procedure does not go into the small intestines.

a)

True

b)

False

142.

Upper GI is used to evaluate

a)

nausea or vomiting

b)

tumor or ulcer

c)

infection or inflammation

d)

bleeding

e)

difficulty swallowing

143.

Lower GI is used to evaluate

a)

abdominal pain

b)

tumor or ulcer or polyps

c)

infection or inflammation

d)

rectal bleeding

e)

diverticulosis

144.

A biopsy can be taken during an upper and lower GI.

a)

True

b)

False

145.

During a lower GI ___ can be removed using a snare and the area cauterized (burned).

a)

polyp

b)

sore

c)

ulcer

d)

diverticula

146.

During an upper GI you usually lay on

a)

back

b)

left side

c)

right side

147.

During an upper and lower GI a __ is used, it is a thin, flexible tube with a light and a camera.

a)

endoscope

b)

exoscope

c)

oroscope

d)

rectoscope

148.

A balanced diet on your menu includes ___ fruit a day.

a)

1-2 c

b)

2-3c

c)

0-1 c

d)

2 1/2 -3c

149.

A balanced diet on your menu includes ___ veggies a day.

a)

1-3 c

b)

2-3c

c)

3-5 c

d)

2 1/2 -3c

150.

A balanced diet on your menu includes ___ dairy a day.

a)

1 c

b)

2 c

c)

3 c

d)

1 1/2 c

151.

A balanced diet on your menu includes ___ protein a day.

a)

2-6.5 oz

b)

1-4.5 oz

c)

6-10 oz

d)

2 oz

152.

absorbed directly into blood stream as food is broken down, urinating out extra

a)

mineral

b)

vitamin

c)

water-soluble

d)

fat-soluble

153.

organ that regulates water-soluble vitamins

a)

kidney

b)

liver

c)

large intestines

d)

small intestines

154.

pick water-soluble vitamins

a)

B12

b)

Vitamin C

c)

Niacin -- B3

d)

Vitamin D

e)

Vitamin K

155.

pick fat-soluble vitamins

a)

B6

b)

Vitamin A

c)

Biotin -- B7

d)

Vitamin D

e)

Vitamin K

156.

absorbed via lymph channels, travel under protein escort

a)

mineral

b)

vitamin

c)

water-soluble

d)

fat-soluble

157.

helps prevent scurvy

a)

Vitamin D

b)

Vitamin A

c)

Vitamin C

d)

Vitamin K

158.

helps prevent blindness

a)

Vitamin D

b)

Vitamin A

c)

Vitamin C

d)

Vitamin K

159.

helps prevent rickets

a)

Vitamin D

b)

Vitamin A

c)

Vitamin C

d)

Vitamin K

160.

helps prevent birth defects

a)

Vitamin K

b)

Magnesium

c)

Folic acid

d)

fluoride

161.

helps with healthy teeth

a)

Vitamin K

b)

Magnesium

c)

Folic acid

d)

fluoride

162.

gives you strong bones

a)

calcium

b)

vitamin D

c)

fluoride

d)

folic acid

163.

organic and can be broken down by heat, air and acid

a)

mineral

b)

vitamin

c)

water-soluble

d)

fat-soluble

164.

inorganic and hold chemical structure

a)

mineral

b)

vitamin

c)

water-soluble

d)

fat-soluble

165.

The process of breaking down a glucose molecule to release energy is called ___________.

a)

Glycogenolysis

b)

Gluconeogenesis

c)

Glycolysis

d)

Hydrolysis

166.

Which cell in the human body only uses glycolysis for ATP production?

a)

Erythrocyte

b)

Hepatocyte

c)

Neuron

167.

Which of the following biological processes will occur under both aerobic and anaerobic conditions in humans?

a)

Fermentation

b)

Lactation

c)

glycolysis

d)

Citric acid cycle

168.

Glycolysis occur in the ___________ of a cell.

a)

Golgi complex

b)

Mitochondria

c)

Cytosol

d)

ribosomes

169.

How many pyruvate molecules are formed by the glycolysis process of one moelcule of glucose?

a)

One

b)

Two

c)

four

d)

Six

170.

Which of the following products is not created by glycolysis?

a)

ATP

b)

NADH

c)

PYruvate

d)

Lactaic acid

171.

Which of the following is not a product in the net reaction for glycolysis?

a)

GTP

b)

ATP

c)

NADH

172.

What type of enzyme is responsible for initiating the process of glycolysis?

a)

Phosphatase

b)

Phosphorylase

c)

Hydrogenase

d)

Kinase

173.

A kinae an enzyme that

a)

removes a phosphate form substrates

b)

uses an ATP to add a phopshate to a substrate

c)

does not use a ATP to add a phosphate to a subdtrate

174.

Glycolysis nvolves 10 steps and _________ of them are irreversible

a)

one

b)

two

c)

three

d)

four

175.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
176.
In the diagram, what is letter A? 
a)
product
b)
substrate
c)
enzyme-substrate complex
d)
active site
177.
Enzymes are...
a)
nucleic acids
b)
proteins
c)
lipids
d)
carbohydrates
178.
What is the function of an enzyme?
a)
enzymes break themselves into small pieces
b)
enzymes slow down chemical reactions
c)
enzymes speed up chemical reactions
d)
enzymes combine products to form reactants 
179.
With what 3 letters do enzymes typically end?
a)
-ose
b)
-ase
c)
-ese
d)
-tic
180.
Where do substrates bind on an enzyme?
a)
voltage-gated channels
b)
surface receptor
c)
calcium channels
d)
active site
181.
The "lock and key hypothesis" attempts to explain the mechanism of?
a)
Vacuole formation
b)
Pinocytosis
c)
Sharing of electrons
d)
Enzyme specificity 
182.
Which substrate would this enzyme catalyze?
a)
Δ
b)
σ
c)
d)
μ
183.
What makes an enzyme substrate specific?
a)
Size
b)
Shape
c)
Name
d)
Location it is found in
184.
Enzymes need certain environmental conditions in order to function properly.  What happens when enzymes are heated to a high temperature?
a)
they die
b)
they denature
c)
they change their amino acid sequence
d)
they work better
185.
How do enzymes increase the speed of chemical reactions?
a)
reducing the number of products   
b)
reducing the activation energy
c)
increasing the temperature of the cell
d)
increasing the concentration of reactants 
186.
After the enzyme and substrate bind together and perform the reaction, what does the substrate become?
a)
a substrate
b)
an enzyme
c)
a product
d)
an active site
187.
can a change in pH alter the active site of an enzyme
a)
yes
b)
no
188.
Which of these is NOT true?
a)
Enzymes can denature (change shape) when the temperature gets too high.
b)
Enzymes can only be used once in a chemical reaction. 
c)
Extreme pH can denature enzymes.
d)
Enzymes speed up chemical reactions. 
189.
What happens when enzymes are heated to a high temperature?
a)
The enzymes die.
b)
The shapes of the enzyme are altered or denatured
c)
The enzymes' amino acid sequence changes.
d)
The enzymes remain the same
190.
Venus flytraps produce chemicals that break down insects into usable compounds. These chemicals are most likely:
a)
Hormones
b)
Lipids
c)
Enzymes
d)
Carbohydrates
191.
Which chemical is classified as an enzyme?
a)
Galactose
b)
Lipid
c)
Protease
d)
Manganese dioxide
192.
What is indicated by letter A?
a)
enzyme
b)
product
c)
substrate
d)
active site
193.
How do competitive inhibitors affect enzymes?
a)
It binds to the active site, blocking the substrate
b)
It changes the shape of the enzyme
c)
It increases the activation energy
d)
It decreases the activation energy
194.
Which of these do NOT affect enzyme activity?
a)
Temperature
b)
pH
c)
Competitive Inhibitors
d)
Carbohydrates