Question

which of the following are common examples of lipids
grains and sugars
oils and waxes
glucose and fructose
starches and oils

which of the following is a correct statement about unsaturated fats
they are joined by single bonds between carbon atoms
they contain the maximum amount of hydrogen bonds possible
they contain the minimum amount of carbon bonds possible
they are joined by at least one double bond between carbon atoms

which of the following is a example of a steroid
oil
cholesterol
starch
wax

which of the following statements is generally true about lipids
they are often considered hydrophobic, which means they readily dissolve in water
they are often considered insoluble in water, which means they do not dissolve in water
they are often considered hydrophobic, which means they will not dissolve in water
they are often considered soluble in water, which means they readily dissolve in water

which of the following is a key function of fats in the body
source of quick energy
protection against thermal injuries
regulation of chemical reactions
transmission of genetic information

Answer 1

1. oils and waxes
2. they contain the maximum amount of hydrogen bonds possible.
3.cholesterol
4.they are often considered insoluble in water, which means they do not dissolve in water
I'm not sure for the 5th one tho

Answer 2

1. Answer;

oils and waxes

Explanation;

• Lipids are a group of organic compounds with an oily, greasy, or waxy consistency. They are made of Carbon, Hydrogen and a small amount of Oxygen .
• They are also relatively insoluble in water and tend to be hydrophobic and soluble in organic solvents such as ethanol.
• Lipids can be classified as; simple lipids: fats, oils, and waxes, phospholipids and related molecules and  steroids.

2.Answer;

they contain the maximum amount of hydrogen bonds possible.

Explanation;

• Fatty acids are the building  blocks of lipids together with glycerols. Fatty acids may be saturated or unsaturated. Saturated fatty acids are those with a maximum number of hydrogen atoms., that is each carbon has maximum number of hydrogen atoms and they lack double.
• Unsaturated fatty acids on the other hand are those with a double bond and fewer hydrogen atoms in their structure.The double bonds between the carbon atoms prevent bonds to hydrogen. They contain some carbon atoms that are double-bonded with each other that is all of the spaces are not taken by hydrogen atoms.

3. Answer;

cholesterol

Explanation;

• Lipids are classified into three major categories, namely; triglycerides, steroids and phospholipids.  Triglycerides are lipids obtained from food sources of fat, such as cooking oils, butter and animal fat.
• Steroids are a type of lipid which includes hormones and cholesterol. Cholesterol is a steroid that made by the body and consumed through food, and it plays a role in the production of hormones.

4. Answer;

They are often considered insoluble in water, which means they do not dissolve in water.

Explanation;

• Lipid is one of the four major biomolecules in living organisms. lipids are a group of organic compounds with an oily, greasy, or waxy consistency. They are made of Carbon, Hydrogen and a small amount of Oxygen .
• They are also relatively insoluble in water and tend to be hydrophobic and soluble in organic solvents such as ethanol.
• Lipids play major roles such as; biological fuels, hormones, structural components of membranes, sources of metabolic water, shock absorbers etc.