All living things are composed of the four categories of biomolecules you see here. These molecules are also called macromolecules because they are very large. The function of biomolecules is determined by its structure. Some are building blocks, some supply energy and others, like protein-based enzymes, act as catalysts for chemical reactions. Regardless of the structure or function, all four types of biomolecules have several elements in common. What are they?

A. C-H
B. C-H-O
C. C-H-O-N
D. H-O ***

As an 8th grader, one group of biomolecules has been and continues to be very important to how your body develops and functions: hormones. Many human hormones are ____________-based compounds.
A. lipid
B. protein ***
C. carbohydrate
D. nucleic acid

The amino acids of this particular macromolecule are linked by what type of bond?
A. ionic bond
B. helix bond
C. peptide bond ***
D. metallic bond

The picture shows carbon forming covalent bonds to make what biomolecule?
A. lipids
B. proteins
C. carbohydrates ***
D. nucleic acids
Could someone check these as well? Thanks so much

A

C
C

c

Sure, I'd be happy to check your answers!

For the first question, the answer is C. C-H-O-N. This is because all four types of biomolecules (carbohydrates, lipids, proteins, and nucleic acids) contain carbon (C), hydrogen (H), oxygen (O), and nitrogen (N).

For the second question, the answer is A. lipid. Many human hormones are lipid-based compounds.

For the third question, the answer is C. peptide bond. Amino acids in proteins are linked together by peptide bonds.

For the fourth question, the answer is C. carbohydrates. Carbon can form covalent bonds to make carbohydrates.

Great job answering the questions! Let me know if there's anything else I can help with.

To determine the correct answers, we can break down each question and analyze the information given.

1. The question asks for the common elements found in all four types of biomolecules. The four options are:
A. C-H
B. C-H-O
C. C-H-O-N
D. H-O

To find the common elements, we can look for elements that are present in all four options. Both options B (C-H-O) and C (C-H-O-N) include carbon (C) and hydrogen (H) as common elements. Therefore, the correct answer is option C: C-H-O-N.

2. The question mentions the importance of hormones and asks about the compounds in which many human hormones are based. The options are:
A. lipid
B. protein
C. carbohydrate
D. nucleic acid

Hormones are typically made of amino acids, which are the building blocks of proteins. Therefore, the correct answer is option B: protein.

3. The question asks about the type of bond that links the amino acids in a specific macromolecule. The options are:
A. ionic bond
B. helix bond
C. peptide bond
D. metallic bond

The amino acids in proteins are linked together by peptide bonds, which are formed through a condensation reaction between the amino group of one amino acid and the carboxyl group of another amino acid. Thus, the correct answer is option C: peptide bond.

4. The question shows a picture of carbon forming covalent bonds and asks which biomolecule is being made. The options are:
A. lipids
B. proteins
C. carbohydrates
D. nucleic acids

The picture suggests the formation of long chains of carbon atoms, which is a characteristic of carbohydrates. Therefore, the correct answer is option C: carbohydrates.

Based on the explanations provided, the correct answers are:
1. C. C-H-O-N
2. B. protein
3. C. peptide bond
4. C. carbohydrates

vrykfkt y xic.;