Which atoms are in all carbohydrates?


A- carbon, phosphorus, oxygen


B- carbon, nitrogen, oxygen


C- carbon, hydrogen, oxygen


D- carbon, hydrogen, nitrogen

My choice is C.

Which type of macromolecule is the sugar fructose?


A- protein

B- lipid

C- carbohydrate

D- nucleic acid

My choice is C.

I agree with both of your choices.

I don't know if you've seen this or not but a way to remember and/or identify a carbohydrate is that they are just that; i.e., a CARBO (meaning C) and HYDRATE (meaning water or H2O)
glucose and fructose are C6H12O6. That's 6C and 6H2O
sucrose is C12H22O11
12C and 11H2O

Thank you so much! :)

Your choices are both correct.

The atoms that are found in all carbohydrates are carbon, hydrogen, and oxygen. So, option C - carbon, hydrogen, oxygen - is the correct answer.

Fructose is a type of sugar, which falls under the category of carbohydrates. Therefore, option C - carbohydrate - is the correct answer.

Good choices!

For the question about which atoms are in all carbohydrates, the correct answer is C- carbon, hydrogen, oxygen.

Carbohydrates are organic compounds, and their basic structure consists of carbon, hydrogen, and oxygen atoms. The ratio of hydrogen atoms to oxygen atoms is typically 2:1, similar to the way water has a ratio of 2 hydrogen atoms to 1 oxygen atom. These atoms combine in different ways to form different types of carbohydrates.

To arrive at this answer, you can use your general knowledge of organic chemistry and the composition of carbohydrates. Carbohydrates are known for being one of the main sources of energy for living organisms, and their structures are based on the arrangement of carbon, hydrogen, and oxygen atoms.

Now, moving on to the question about the type of macromolecule that fructose belongs to. Your choice C- carbohydrate is correct.

Fructose is a monosaccharide, which is a simple sugar and a type of carbohydrate. Other examples of monosaccharides include glucose and galactose. Carbohydrates are one of the four major macromolecules found in living organisms, along with proteins, lipids, and nucleic acids.

To arrive at this answer, you can use your knowledge of biochemistry and the classification of biomolecules. Monosaccharides are a type of carbohydrate, and fructose is one specific example of a monosaccharide.

Great job on both questions!