Lipids

Question 1

It is a biochemical substances that are insoluble in water and are soluble in non-polar solvents

Answer 1

Lipids

Question 2

TRUE OR FALSE:

Lipids yield large amounts of energy

Answer 2

TRUE

Question 3

Enumerate the 5 biological functions of Lipids

Answer 3

• Store of chemical energy
• Insulate vital organs
• Components of cell membranes
• Chemical Messengers (Hormones)
• Covering of Nerve Fibers

Question 4

Lipids are largely _________ in nature

Answer 4

Hydrocarbon

Question 4

What are the two classification of Lipids?

Answer 4

1. Saponifiable Lipids
2. Non-Saponifiable Lipids

Question 5

It produces fatty acid salts upon base hydrolysis

Answer 5

Saponifiable Lipids

Question 6

Kapag walang fatty acids

Answer 6

Non-Saponifiable Lipids

Question 7

IDENTIFICATION - Kinds of Saponifiable Lipids

Main storage form of fatty acids in cells

Answer 7

Triacylglycerols (TAGS)

Question 8

TRUE OR FALSE:

Triacylglycerols (TAGs) is the esters of glycerol and fatty acids

Answer 8

TRUE

Question 9

What is the most abundant Fatty Acids?

Answer 9

• Palmitic
• Stearic
• Oleic
• Linoleic

Question 10

TRUE OR FALSE:

Non-Saponifiable keeps the animals warm

Answer 10

FALSE; Saponifiable Lipids keeps the animals warm

Question 11

TRUE OR FALSE:

More than 90% of seal blubbers is fats

Answer 11

FALSE; more than 80%

Question 12

IDENTIFICATION - Kinds of Saponifiable Lipids

Monocarboxylic acids that contain long, unbranched hydrocarbon chain

Answer 12

Fatty Acids

Question 13

IDENTIFICATION - Kinds of Saponifiable Lipids

Generally, Fatty Acids have ___ - ___ Carbon Atoms in length

Answer 13

12-26

Question 14

IDENTIFICATION: Types of Fatty Acids

No double bonds

Answer 14

Saturated

Question 15

What are the three types of Fatty Acids?

Answer 15

• Saturated
• Monosaturated
• Polyunsaturated

Question 16

IDENTIFICATION: Types of Fatty Acids

One double bond

Answer 16

Monounsaturated

Question 17

IDENTIFICATION:

TAGs with high percentage of saturated Fatty Acids

Answer 17

Fats

Question 18

IDENTIFICATION: Types of Fatty Acids

2 or more double bonds

Answer 18

Polyunsaturated

Question 19

What type of Fatty Acids does have:
1. High Melting Point
2. Low Melting Point

Answer 19

1. Saturated Fatty Acids
2. Unsaturated Fatty Acids

Question 20

TRUE OR FALSE:

Fats came from animal sources

Answer 20

TRUE

Question 20

TRUE OR FALSE:

Oils came from plant sources

Answer 20

TRUE

Question 20

IDENTIFICATION:

High Percentage of Unsaturated Fatty Acids

Answer 20

Oils

Question 20

IDENTIFICATION:

Fatty Acids that mammals cannot synthesize

Answer 20

Essential Fatty Acids

Question 20

**IDENTIFICATION:** Common constituents of cellular membranes

Answer 20

Glycerophospholipids

Question 21

**IDENTIFICATION:** Polyunsaturated Fatty Acids is essential in _______ _______ and _________ ________ ________ __________

Answer 21

normal visual and central nervous system development

Question 22

**IDENTIFICATION:** When Glycerophospholipids is hydrolyzed, it yields?

Answer 22

* 1 glycerol * 2 fatty acids * 1 phosphate group * 1 alcohol group

Question 23

**IDENTIFICATION** Hydrophobic portion of Glycerophospholipids consists of ________ joined to ______

Answer 23

2 fatty acids joined to glycerol backbone

Question 24

**TRUE OR FALSE:** In Glycerophospholipids, Carbon 3 is sterified to a **phosphate group**

Answer 24

TRUE

Question 25

**TRUE OR FALSE:** Only carbon 1&2 are esterified to **fatty acids**

Answer 25

TRUE

Question 26

**IDENTIFICATION:** Glycerophospholipids is also known as ___________ or _________

Answer 26

phospholipids or phosphoglycerydes

Question 26

**IDENTIFICATION:** Sphingolipids can be found in _______?

Answer 26

Plasma Membranes

Question 26

**IDENTIFICATION: Sphingolipids** The OH Group in C-1 is attached to a group via _________

Answer 26

ester linkage

Question 26

**TRUE OR FALSE:** Sphingolipids has the **lowest** in concentration in cells of central nervous system

Answer 26

**FALSE;** sphingolipids has the highest in concentration in cells

Question 27

**IDENTIFICATION: Sphingolipids** Common constituent of plasma membranes

Answer 27

Sphingomyelin

Question 27

**IDENTIFICATION:** Derivatives of the **lipid sphingosine**

Answer 27

Sphingolipids

Question 28

**IDENTIFICATION: Sphingolipids** Sphingomyelin is prominent in _______?

Answer 28

Myelin

Question 29

**IDENTIFICATION: Sphingolipids** When Sphingolipids is hydrolyzed, it produces:

Answer 29

* Sphingosphine * Fatty Acid * Phosphate * Alcohol Group

Question 30

**IDENTIFICATION: Sphingolipids** What is the bond between amino group and fatty acids?

Answer 30

Amide Bond

Question 31

**IDENTIFICATION: Sphingolipids** What is the bond between phosphate group & sphingosphine?

Answer 31

Phosphoester Bond