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Quiz about Basic Biochemistry
Quiz about Basic Biochemistry

Basic Biochemistry Trivia Quiz


Here's some basic biochemistry, dealing with carbohydrates, proteins, and lipids.

A multiple-choice quiz by Cher40. Estimated time: 3 mins.
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Author
Cher40
Time
3 mins
Type
Multiple Choice
Quiz #
268,802
Updated
Dec 03 21
# Qns
10
Difficulty
Average
Avg Score
7 / 10
Plays
9293
Awards
Top 35% Quiz
Last 3 plays: Guest 97 (9/10), Guest 104 (3/10), Guest 104 (5/10).
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Question 1 of 10
1. What is an example of a 5-carbon sugar? Hint


Question 2 of 10
2. Of what elements are carbohydrates composed? Hint


Question 3 of 10
3. What is a long chain of sugar molecules? Hint


Question 4 of 10
4. What is the principal carbohydrate storage product in animals? Hint


Question 5 of 10
5. What molecules are the building blocks of proteins? Hint


Question 6 of 10
6. What is the name for 2 amino acids bonded together? Hint


Question 7 of 10
7. What is the protein found in human hair and finger nails, as well as in hooves, horns, wool, claws, bird beaks, and spider webs? Hint


Question 8 of 10
8. Of what is a triglyceride composed? Hint


Question 9 of 10
9. Why is a saturated fat called a "saturated" fat? Hint


Question 10 of 10
10. Of what elements are triglycerides composed? Hint



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Most Recent Scores
Oct 30 2024 : Guest 97: 9/10
Oct 30 2024 : Guest 104: 3/10
Oct 30 2024 : Guest 104: 5/10
Oct 29 2024 : Guest 134: 9/10
Oct 28 2024 : Guest 161: 8/10
Oct 28 2024 : Guest 104: 8/10
Oct 28 2024 : Guest 104: 9/10
Oct 25 2024 : Guest 104: 6/10
Oct 21 2024 : Guest 134: 4/10

Score Distribution

quiz
Quiz Answer Key and Fun Facts
1. What is an example of a 5-carbon sugar?

Answer: Ribose

Glucose and fructose are both 6-carbon sugars, while sucrose is glucose and fructose bonded together. Ribose is the sugar in RNA.
2. Of what elements are carbohydrates composed?

Answer: C, H, & O

Carbohydrates are composed of carbon, hydrogen, and oxygen atoms. Proteins are composed primarily of carbon, hydrogen, oxygen, as well as nitrogen.
3. What is a long chain of sugar molecules?

Answer: Polysaccharide

Polysaccharides are long chains of simple sugars bonded together including starch, glycogen and cellulose. Polypeptides and proteins are long chains of amino acids. Lipids are substances like fats.
4. What is the principal carbohydrate storage product in animals?

Answer: Glycogen

Glycogen is stored in the liver and muscles. Cellulose is common in plants as supporting material. Starch is a carbohydrate storage product in plants. Proteins are not carbohydrates.
5. What molecules are the building blocks of proteins?

Answer: Amino acids

Proteins are formed with amino acids bonded together. Sugars and disaccharides are carbohydrates. Fatty acids are lipids.
6. What is the name for 2 amino acids bonded together?

Answer: Dipeptide

A dipeptide is two amino acids bonded together while a disaccharide is two sugars bonded together. Proteins are long chains of amino acids, and alanine is a simple amino acid.
7. What is the protein found in human hair and finger nails, as well as in hooves, horns, wool, claws, bird beaks, and spider webs?

Answer: Keratin

Keratin is also found in bird and reptile scales. Collagen is found in skin, tendons, and ligaments. Glycogen is a carbohydrate. Cellulite is "cottage-cheese" skin.
8. Of what is a triglyceride composed?

Answer: One glycerol with 3 fatty acids

A triglyceride is a 3-carbon glycerol or glyceride molecule that has three fatty acid chains attached to it, one chain to each of the glycerol's three carbons.
9. Why is a saturated fat called a "saturated" fat?

Answer: The fatty acid carbon chains are saturated with hydrogen.

Each carbon in the fatty acid chain is bonded to the maximum number of hydrogen atoms, and is said to be saturated with hydrogen. Unsaturated fatty acids have carbon-carbon double bonds which can be broken to add more hydrogen.
10. Of what elements are triglycerides composed?

Answer: C, H & O

Carbohydrates and the lipids known as triglycerides are composed of carbon, hydrogen, and oxygen atoms. Proteins are composed primarily of carbon, hydrogen, oxygen, as well as nitrogen.
Source: Author Cher40

This quiz was reviewed by FunTrivia editor crisw before going online.
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