Food Choices and Amino Acids

Front

Hunger is:

Back

A physical need for food

Answer explanation

Hunger is primarily a physical need for food, indicating the body's requirement for energy and nutrients. The other options describe different states or cravings, but do not define hunger accurately.

Front

People's food choices are NOT affected by: culture and ethnic background, convenience, hunger, family and friends

Back

hunger

Answer explanation

Hunger is a basic physiological need that drives food choices, while culture, convenience, and social influences shape preferences. Therefore, hunger itself does not affect the variety of food choices people make.

Front

How many amino acids are there?

Back

20

Answer explanation

There are 20 standard amino acids that are used to build proteins in living organisms. This is the correct answer, as the other options (5, 8, 12) do not represent the total number of amino acids.

Front

How many essential amino acids are there?

Back

9

Answer explanation

There are 9 essential amino acids that the body cannot synthesize and must be obtained through diet. These include histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

Front

Why are essential amino acids considered essential?

Back

they are not made by our body

Answer explanation

Essential amino acids are considered essential because they are not made by our body. We must obtain them through our diet, unlike non-essential amino acids, which the body can synthesize.

Front

Fats are a type of:

Back

lipid

Answer explanation

Fats are classified as lipids, which are a group of organic compounds that are insoluble in water but soluble in organic solvents. They play essential roles in energy storage and cellular structure.

Front

Fat-soluble vitamins:

Back

are moved through the body on fat molecules

Answer explanation

Fat-soluble vitamins are absorbed along with dietary fat and transported in the body via fat molecules, making the correct choice 'are moved through the body on fat molecules'. They can accumulate in body tissues.

Front

Saturated fats are:

Back

solid at room temperature

Answer explanation

Saturated fats are typically solid at room temperature due to their chemical structure, which allows them to pack closely together. This distinguishes them from unsaturated fats, which are usually liquid at room temperature.

Front

The body's most essential nutrient is: carbohydrates, vitamins, water, protein

Back

water

Answer explanation

Water is the body's most essential nutrient as it is crucial for nearly all bodily functions, including temperature regulation, nutrient transport, and waste elimination. Without adequate water, survival is not possible.

Front

Which of the following is NOT a food group?
Options:
bread, cereal, pasta and rice,
fruits and vegetables,
milk, yogurt and cheese,
fats, oils and sweets

Back

fats, oils and sweets

Answer explanation

The correct answer is 'fats, oils and sweets' because it is not considered a primary food group like the others listed, which include essential nutrients for a balanced diet.