ENDTERM

Question 1

The female steroid hormone – estrogen is a derived lipid.

Answer 1

True

Question 2

Cholesterol is the most common steroid

Answer 2

True

Question 3

Triglycerides within the body are ingested as food or synthesized by hepatocytes only.

Answer 3

False

Question 4

It is the intestine where ingested triglycerides are broken down into smaller chain fatty acid and subsequently into monoglyceride molecules by pancreatic lipases, enzymes that break down fats after they are emulsifies by bile salts

Answer 4

False

Question 5

Oil and water don’t mix because water has polar bonds whiles oils have non polar bonds.

Answer 5

True

Question 6

Bile salts help emulsify fat droplets.

Answer 6

True

Question 7

In the process of lipogenesis, fats are broken down from Acetyl CoA and takes place in the cytoplasm of adipocytes and hepatocytes.

Answer 7

False

Question 8

Vitamin E is the most powerful antioxidant than vitamin C.

Answer 8

True

Question 9

The main role of vitamin K is in blood clotting

Answer 9

True

Question 10

Vitamin C is water soluble and easily destroyed by heat, alkali and storage.

Answer 10

True

Question 11

● Fats are from animal sources, solid at room temperature.

● Oil usually comes from plants, liquid at room temperature.

Answer 11

Both statements are TRUE

Question 12

● A phospholipid has glycerol backbone and three fatty acid chain.

● One part of the phospholipid is non-polar and the other is polar.

Answer 12

1st statement is FALSE and 2nd statement is TRUE

Question 13

● Cholesterol is precursor of steroid.

● Cholesterol is important for synthesizing bile salts.

Answer 13

Both statements are TRUE

Question 14

● Lipids are more soluble in water.

● Lipids are either strongly hydrophobic or amphipathic.

Answer 14

1st statement is FALSE and 2nd statement is TRUE

Question 15

● Tran’s fat is created in an industrial process that adds hydrogen.

● Transfat can also be called “partially hydrogenated”.

Answer 15

Both statements are TRUE

Question 16

What will happen if hydrogenation process occurs in unsaturated fatty acid?

Unsaturated fatty acids will become liquid.
Unsaturated fatty acids will lose its double bond to form single bond.
Unsaturated fatty acids will form another double bond to cater the other
hydrogen.
Unsaturated fatty acids will disintegrate and dissolved.

Answer 16

Unsaturated fatty acids will lose its double bond to form single bond.

Question 17

You woke up at 6 am prepared yourself to school. Your mother cooked eggs as your breakfast. What will happen to the eggs if you swallow it?

It will be broken into pieces through mechanical digestion in the mouth and chemical digestion in the stomach and being absorbed in the small intestine to be used in the whole body.

It will be broken down into pieces by using teeth and the eggs will be
dissolved in the stomach where it contains high acidity in the body.

It will be broken down into pieces and swallowed through peristalsis of the
esophagus where it will go to the stomach to be digested thoroughly in order
for the body to use it immediately.

None of these

Answer 17

It will be broken into pieces through mechanical digestion in the mouth and chemical digestion in the stomach and being absorbed in the small intestine to be used in the whole body.

Question 18

A 55-year old patient is complaining of suffering from abdominal cramps or fullness in his stomach after 30mins of eating and he has an unintended weight loss for these past few months. His medical history shows also that he has hypertension. What could be the possible cause?

Too much release of lipases in the small intestine.

Lack of digested lipid going to the intestinal cells.

There is not enough blood distributed to the intestine because of artery
blockage.

There is an inflammation between the intestinal cells that causes bacterial
infection.

Answer 18

There is not enough blood distributed to the intestine because of artery blockage.

Question 19

Rickets causes a child’s bones to become soft and weak, which can lead to bone deformities. The bones affected by rickets can be sore and painful, so the child may be reluctant to walk or may tire easily; the child’s walk may look different (waddling). Children suffering from rickets lack certain vitamin that produce and absorb calcium. What type of vitamin is the one we are looking for?

Vitamin E
Vitamin C
Vitamin A
Vitamin D

Answer 19

Vitamin D

Question 20

The menstrual cycle, which is counted from the first day of one period to the first day of the next, isn’t the same for every woman. Menstrual flow might occur every 21 to 35 days and last two to seven days. A normal amount of menstrual fluid loss in the form of blood, per period is between 5 mL to 80 mL. The amount is relatively high for some females to suffer anemia. Which among the following vitamins have the capability to produce red blood cells to prevent anemia?

Vitamin B2
Vitamin C
Vitamin D
Vitamin B9

Answer 20

Vitamin B9

Question 21

Hypovitaminosis A is a result from a deficiency of what?

Vitamin A
Vitamin B
Vitamin C
Vitamin D

Answer 21

Vitamin A

Question 22

The cell membrane acts as protective layer and covering for the cell. Membranes that cover the cell and its other structure are made up of what kind of molecules?

Steroids
Enzymes
Phospholipids
Triglycerides

Answer 22

Phospholipids

Question 23

In relation to question number one, what is the building block of molecules that make up the cell membrane?

Sugars
Fatty Acids
Amino Acids
Nucleotides

Answer 23

Fatty Acid

Question 24

Which of the following are esters of fatty acids with glycerol

Triglycerides
Tripalmitin
Linolic
Glycerol

Answer 24

Triglycerides

Question 25

It is well-known steroid molecule that serves as precursor for other steroids such as testosterone and vitamin. Cholesterol Cortisol Estrogen Testosterone

Answer 25

Cholesterol

Question 26

Which of the following do carbohydrates and lipids have in common? They are both good source of glucose. They are both good source of fatty acid. They are both good source of protein. All of the above

Answer 26

They are both good source of glucose

Question 27

It is a type of product that contains a lot of hydrogenated oils Saturated fat Unsaturated fat Mon saturated fat Trans fatty acid

Answer 27

Trans fatty acid

Question 28

Cholesterol build up occurs from consuming too much unhealthy fats that can cause: Brain damage Liver starts to fail due to cholesterol build up. Veins and arteries will start to clog which will lead to stroke. Weakening of bones due to obesity.

Answer 28

Veins and arteries will start to clog which will lead to stroke.

Question 29

Identify the possible outcome of having not enough fatty acid count in one’s diet. The brain wouldn’t have enough energy to perform. The muscle tissues wouldn’t have enough energy to perform. The kidneys and liver will not function properly. The bones will become brittle and be weakened due to lack of fatty acid.

Answer 29

The muscle tissues wouldn’t have enough energy to perform.

Question 30

What is the key difference between saturated and unsaturated fat? Saturated fats are usually liquid at room temperature; unsaturated fats are usually liquid in room temperature. Saturated fats are usually solid at room temperature; unsaturated fats are usually liquid in room temperature. Saturated fats are healthier than unsaturated fats. Saturated fats can be found mostly in plants; unsaturated fats can be found mostly in meat products.

Answer 30

Saturated fats are usually solid at room temperature; unsaturated fats are usually liquid in room temperature.

Question 31

The following are functions of lipids, EXCEPT: Long term energy storage Making biological membrane Insulation Stabilize white blood cells

Answer 31

Stabilize white blood cells

Question 32

Amphipathic molecules contain ____________ head group and _________tail. Polar and non-polar Water and hydrophilic Cis and trans None of the above

Answer 32

Polar and non-polar

Question 33

Where does most lipid digestion occur? Small intestine Duodenum Stomach Pancreas

Answer 33

Duodenum

Question 34

Which of the following is a kind of lipase enzyme that helps the breakdown of lipids in the stomach? Pancreatic lipase Lingual lipase Gastric lipase None of the above

Answer 34

Gastric lipase

Question 35

What is being formed when there is a condensation reaction? Fatty acid and alcohols Carbon and Hydrogen Fatty acid and amines Fatty acid and Hydrogen

Answer 35

Fatty acid and alcohols

Question 36

A process that takes the large droplet of lipids and breaks it down to smaller droplets with the aid of bile/ bile acid is called _____________. Saponification Emulsification Absorption Digestion

Answer 36

Emulsification

Question 37

When fats are boiled with bases like KOH or NaOH glycerol and salts of fatty acids are formed. This process is called _____________. Catalyst Saponification Degradation Peroxidation

Answer 37

Saponification

Question 38

It is a process in which liquid oil will turn into solid like butter or margarine. Hydrogenation Oxidation Fermentation Peroxidation

Answer 38

Hydrogenation

Question 39

Which of the following are susceptible to essential fatty acid deficiency? Adult consuming formula diet Pregnant women Infants consuming formula diet Growing children

Answer 39

Infants consuming formula diet

Question 40

What is the function of chylomicron in the absorption of lipids? Creates fatty acid Disassembles triglycerides Transportation of triglycerides Serves as a stored energy

Answer 40

Transportation of triglycerides

Question 41

What part of the human body is where the chylomicron is produced? Stomach Small intestine Intestinal cells Gall bladder

Answer 41

Intestinal cells

Question 42

Fat substitutes are one option for cutting fat calories. What are fat substitutes are made of? Carbohydrates Proteins Starch All of the above

Answer 42

All of the above

Question 43

Unsaturated fats are healthier than saturated. Which if the following contains unsaturated fats? Butter Olive Oil Bacon Eggs

Answer 43

Olive Oil

Question 44

Fats are insoluble in water because of what part in its structure? Hydroxyl group Carboxyl group Hydrocarbon group Carbonyl group

Answer 44

Hydrocarbon group

Question 45

Which of the following does NOT describe saturated fat? They form with double bonds They often found in baked goods. They have low-density lipoprotein. They increase the risk of heart diseases.

Answer 45

They form with double bonds

Question 46

Deficiency of which one of these vitamin is a major cause of blindness? Vitamin A Vitamin B12 Vitamin B6 Vitamin D

Answer 46

Vitamin A

Question 47

Which nutrient can cause birth defects if the mother gets too little of it before and early pregnancy? Thiamin Folic acid Vitamin C Vitamin A

Answer 47

Folic acid

Question 48

Which of the following vitamin is affected by the exposure under the sun, skin color and usage of sunscreen? Vitamin A Vitamin B Vitamin C Vitamin D

Answer 48

Vitamin D

Question 49

The following are examples of fat soluble vitamins, EXCEPT: Vitamin A Vitamin D Vitamin K None of the above

Answer 49

None of the above

Question 50

What types of vitamins are created by mixing chemical in a laboratory? Natural vitamins Synthetic vitamins Both natural and synthetic None of the above

Answer 50

Synthetic vitamins

Question 51

Antioxidant (quenching of free radicals), stabilization of cell membranes, support of immune function, protection of polyunsaturated fatty acids and normal nerve development. Vitamin A Vitamin B Vitamin D Vitamin E

Answer 51

Vitamin E