1.
Carbohydrates mainly contain:
A
Carbon, hydrogen and nitrogen
B
Carbon, hydrogen and oxygen
C
Carbon, oxygen and nitrogen
D
Hydrogen, oxygen and nitrogen
2.
Ethan is studying the functions of carbohydrates. He learns that carbohydrates provide quick energy. Which of the following is a good source of quick energy?
A
Whole grains
B
Fruits
C
Sugar
D
Vegetables
3.
Which is a trisaccharide?
A
Glucose
B
Sucrose
C
Raffinose
D
Fructose
4.
Amino acids are linked together by:
A
Hydrogen bonds
B
Ionic bonds
C
Peptide bonds
D
Disulfide bonds
5.
The main function of lipids is to:
A
Store energy
B
Transmit signals
C
Digest food
D
Carry oxygen
6.
Which food is a rich source of proteins?
A
Rice
B
Potato
C
Egg
D
Sugar
7.
George is learning about the classification of carbohydrates. He knows that carbohydrates can be simple or complex. Which of the following is a simple carbohydrate?
A
Starch
B
Glucose
C
Cellulose
D
Glycogen
8.
Qasim is learning about the functions of food components. He understands that proteins are important for growth and repair. Which of the following is a source of protein?
A
Rice
B
Chicken
C
Butter
D
Sugar
9.
Waleed is studying the deficiency of lipids. He learns that a lack of essential fatty acids can lead to health problems. Which of the following is a source of essential fatty acids?
A
Fish oil
B
Coconut oil
C
Butter
D
Lard
10.
Which disease is caused by deficiency of vitamin B1?
A
Scurvy
B
Rickets
C
Beriberi
D
Night blindness
11.
Xia is learning about the importance of vitamins and minerals. She understands that they are essential in small amounts. Which of the following is a source of vitamin C?
A
Oranges
B
Milk
C
Meat
D
Bread
12.
Fatima is learning about protein deficiency. She understands that protein deficiency can lead to health problems. Which of the following is a result of severe protein deficiency?
A
Marasmus
B
Kwashiorkor
C
Both A and B
D
None of the above
13.
Which is a lipid?
A
Starch
B
Glucose
C
Fat
D
Protein
14.
Enzymes are chemically:
A
Carbohydrates
B
Lipids
C
Proteins
D
Vitamins
15.
Which vitamin is obtained from sunlight?
A
Vitamin A
B
Vitamin B
C
Vitamin C
D
Vitamin D
16.
Samir is studying lipids. He learns that lipids are important for health. Which of the following is a function of lipids in the body?
A
Insulation
B
Protection of organs
C
Hormone production
D
All of the above
17.
Carlos is studying nucleic acids. He learns that DNA and RNA are polymers of nucleotides. What is the sugar found in DNA?
A
Ribose
B
Deoxyribose
C
Glucose
D
Fructose
18.
Which protein structure refers to a chain of amino acids?
A
Primary structure
B
Secondary structure
C
Tertiary structure
D
Quaternary structure
19.
Khalid is learning about amino acids. He understands that amino acids are the monomers of proteins. How many standard amino acids are there?
20.
Proteins are polymers of:
A
Sugars
B
Fatty acids
C
Amino acids
D
Nucleotides
21.
Deficiency of vitamin D causes:
A
Scurvy
B
Rickets
C
Beriberi
D
Anemia
22.
Usman is learning about malnutrition. He understands that malnutrition is a condition caused by an unbalanced diet. What is a type of malnutrition?
A
Overnutrition
B
Undernutrition
C
Both A and B
D
None of the above
23.
Emma is learning about carbohydrates. She understands that carbohydrates are a source of energy. What is the main role of carbohydrates in the body?
A
To build muscles
B
To provide energy
C
To store genetic information
D
To catalyze reactions
24.
Which vitamin group is called B-complex?
A
Fat soluble vitamins
B
Water soluble vitamins
C
Steroid vitamins
D
Hormonal vitamins
25.
Laura is studying lipids. She learns that lipids are a diverse group of hydrophobic molecules. Which of the following is a function of lipids in the body?
A
To store energy and form cell membranes
B
To catalyze reactions
C
To store genetic information
D
To provide quick energy
26.
Lipids are mainly:
A
Water soluble
B
Insoluble in water
C
Salts
D
Proteins
27.
Proteins are essential for:
A
Energy storage only
B
Growth and repair of tissues
C
Photosynthesis
D
Respiration
28.
Zayn is learning about proteins. He understands that proteins have many functions in the body. Which of the following is a function of proteins?
A
Enzymatic activity
B
Structural support
C
Hormones
D
All of the above
29.
Which nutrient is mainly required for enzymes?
A
Carbohydrates
B
Proteins
C
Lipids
D
Vitamins
30.
Usman is studying the components of food. He learns that a balanced diet is key to good health. What should a balanced diet include in terms of water intake?
A
No water is needed
B
Adequate water to maintain hydration
C
Only water from food
D
Unlimited water