Carbohydrates are one of the main macronutrients essential for human health, serving as the body’s primary source of energy. They are organic compounds made up of carbon, hydrogen, and oxygen, typically in the ratio of 1:2:1, and are classified into three main types: sugars (simple carbohydrates), starches (complex carbohydrates), and fiber.
Simple carbohydrates include monosaccharides like glucose and fructose, and disaccharides such as sucrose and lactose. These are quickly digested and provide rapid energy, found in fruits, milk, and processed foods like candy and soda.
Complex carbohydrates consist of polysaccharides, including starches and glycogen. Starches, found in foods like potatoes, rice, and bread, break down more slowly, offering sustained energy. Glycogen is stored in the liver and muscles for quick energy release.
Fiber, a type of complex carbohydrate, is indigestible and aids in digestion, promotes gut health, and helps regulate blood sugar levels. It is abundant in whole grains, vegetables, fruits, and legumes.
Carbohydrates play a crucial role in bodily functions, such as fueling the brain, muscles, and central nervous system. The body converts carbohydrates into glucose, which is used for energy or stored as glycogen. Health experts recommend that carbohydrates make up 45-65% of daily caloric intake, focusing on whole, unprocessed sources to avoid risks like weight gain and blood sugar spikes associated with refined carbs.
A balanced diet with carbohydrates from nutrient-dense foods supports overall well-being, while excessive intake of simple sugars can lead to health issues like diabetes and obesity. Monitoring portion sizes and choosing high-fiber options ensures optimal health benefits.
Table of contents
- Part 1: OnlineExamMaker AI quiz generator – The easiest way to make quizzes online
- Part 2: 20 carbohydrates quiz questions & answers
- Part 3: OnlineExamMaker AI Question Generator: Generate questions for any topic
Part 1: OnlineExamMaker AI quiz generator – The easiest way to make quizzes online
When it comes to ease of creating a carbohydrates skills assessment, OnlineExamMaker is one of the best AI-powered quiz making software for your institutions or businesses. With its AI Question Generator, just upload a document or input keywords about your assessment topic, you can generate high-quality quiz questions on any topic, difficulty level, and format.
What you will like:
● AI Question Generator to help you save time in creating quiz questions automatically.
● Share your online exam with audiences on social platforms like Facebook, Twitter, Reddit and more.
● Display the feedback for correct or incorrect answers instantly after a question is answered.
● Create a lead generation form to collect an exam taker’s information, such as email, mobile phone, work title, company profile and so on.
Automatically generate questions using AI
Part 2: 20 carbohydrates quiz questions & answers
or
1. What is the primary function of carbohydrates in the human body?
A. To provide structural support
B. To store genetic information
C. To provide energy
D. To transport oxygen
Answer: C
Explanation: Carbohydrates are the body’s main source of energy, as they are broken down into glucose, which is used for ATP production in cells.
2. Which of the following is a monosaccharide?
A. Sucrose
B. Lactose
C. Glucose
D. Starch
Answer: C
Explanation: Glucose is a simple sugar and a monosaccharide, consisting of a single sugar unit, unlike disaccharides or polysaccharides.
3. What is the chemical formula for glucose?
A. C6H12O6
B. C12H22O11
C. C6H10O5
D. C5H10O5
Answer: A
Explanation: Glucose has the molecular formula C6H12O6, which is characteristic of hexose monosaccharides.
4. Which carbohydrate is found in plant cell walls and provides dietary fiber?
A. Glycogen
B. Cellulose
C. Starch
D. Fructose
Answer: B
Explanation: Cellulose is a polysaccharide that forms the structural component of plant cell walls and is indigestible by humans, aiding in digestion as fiber.
5. What type of carbohydrate is lactose?
A. Monosaccharide
B. Disaccharide
C. Polysaccharide
D. Oligosaccharide
Answer: B
Explanation: Lactose is a disaccharide composed of glucose and galactose, commonly found in milk.
6. How are carbohydrates classified based on their chemical structure?
A. By their amino acid content
B. By the number of sugar units
C. By their fat content
D. By their vitamin content
Answer: B
Explanation: Carbohydrates are classified as monosaccharides, disaccharides, or polysaccharides based on the number of sugar molecules linked together.
7. Which enzyme breaks down starch in the mouth?
A. Lipase
B. Amylase
C. Protease
D. Lactase
Answer: B
Explanation: Amylase, specifically salivary amylase, begins the digestion of starch into simpler sugars in the mouth.
8. What is glycogen’s primary role in the human body?
A. Providing immediate energy
B. Storing energy in muscles and liver
C. Building cell walls
D. Aiding in protein synthesis
Answer: B
Explanation: Glycogen is a polysaccharide that serves as a storage form of glucose in animals, released when energy is needed.
9. Which of the following is an example of a polysaccharide?
A. Ribose
B. Maltose
C. Chitin
D. Galactose
Answer: C
Explanation: Chitin is a polysaccharide found in the exoskeletons of insects and crustaceans, consisting of many sugar units.
10. What happens to blood sugar levels after consuming simple carbohydrates?
A. They decrease slowly
B. They remain stable
C. They increase rapidly
D. They have no effect
Answer: C
Explanation: Simple carbohydrates, like sugars, are quickly digested and absorbed, leading to a rapid spike in blood glucose levels.
11. Which carbohydrate is the main storage form in plants?
A. Glycogen
B. Cellulose
C. Starch
D. Fructose
Answer: C
Explanation: Starch is the primary way plants store energy, made up of long chains of glucose molecules.
12. What is the difference between alpha and beta glucose?
A. Their atomic number
B. The orientation of the hydroxyl group on the first carbon
C. Their molecular weight
D. Their color
Answer: B
Explanation: Alpha and beta glucose differ in the spatial arrangement of the -OH group on the first carbon atom, affecting how they form polymers like starch or cellulose.
13. Which disaccharide is made from glucose and fructose?
A. Maltose
B. Sucrose
C. Lactose
D. Cellobiose
Answer: B
Explanation: Sucrose is a disaccharide formed by the linkage of glucose and fructose molecules.
14. Why are complex carbohydrates better for sustained energy than simple ones?
A. They contain more calories
B. They are digested more slowly
C. They have no nutritional value
D. They are sweeter
Answer: B
Explanation: Complex carbohydrates, like starches, take longer to break down, providing a steady release of energy over time.
15. What is the glycemic index (GI) a measure of?
A. The amount of fiber in food
B. How quickly a food raises blood sugar levels
C. The calorie content of carbohydrates
D. The vitamin content in carbs
Answer: B
Explanation: The glycemic index measures how fast carbohydrates in food cause an increase in blood glucose levels after eating.
16. Which process in plants produces carbohydrates?
A. Respiration
B. Photosynthesis
C. Fermentation
D. Digestion
Answer: B
Explanation: Photosynthesis uses sunlight to convert carbon dioxide and water into glucose and oxygen, producing carbohydrates.
17. What causes lactose intolerance?
A. Lack of insulin
B. Deficiency in lactase enzyme
C. High fiber intake
D. Excess glucose
Answer: B
Explanation: Lactose intolerance occurs due to insufficient lactase enzyme, which is needed to break down lactose into digestible sugars.
18. How does fiber benefit health even though it’s not digestible?
A. It provides instant energy
B. It aids in digestion and regulates bowel movements
C. It increases blood sugar
D. It builds muscles
Answer: B
Explanation: Fiber, a type of carbohydrate, adds bulk to the diet, promoting healthy digestion and preventing constipation.
19. Which isomer of glucose is commonly found in the blood?
A. D-glucose
B. L-glucose
C. Alpha-glucose
D. Beta-glucose
Answer: A
Explanation: D-glucose is the naturally occurring form in biological systems and is the primary sugar in human blood.
20. What is the recommended daily intake of carbohydrates for adults?
A. 10-20% of total calories
B. 45-65% of total calories
C. 70-80% of total calories
D. Less than 5% of total calories
Answer: B
Explanation: Health guidelines suggest that carbohydrates should make up 45-65% of daily caloric intake for most adults to maintain energy and health.
or
Part 3: OnlineExamMaker AI Question Generator: Generate questions for any topic
Automatically generate questions using AI