Question

question 13
which organic compounds make up muscle tissues, act as enzymes, and protect the body?
a lipids
b proteins
c nucleic acids

question 14
if two monosaccharides bond together, they form a carbohydrate known as a disaccharide.
a true
b false

Explanation:

Question 13

• Lipids (A): Lipids are mainly for energy storage (like fats) and making cell membranes. They don't act as enzymes or make up muscle tissues in the way described.
• Proteins (B): Proteins have multiple functions. Muscle tissues are made of proteins (e.g., actin and myosin). Enzymes are proteins that speed up chemical reactions in the body. Antibodies (a type of protein) protect the body from pathogens.
• Nucleic acids (C): Nucleic acids (DNA and RNA) store and transmit genetic information. They don't have the functions mentioned in the question.

A disaccharide is formed when two monosaccharides (simple sugars) bond together through a glycosidic linkage. For example, glucose + glucose = maltose (a disaccharide), glucose + galactose = lactose (a disaccharide).

Answer:

B. proteins

Question 14