Biomolecules Quiz

Priya, Nora, and Michael are conducting a science experiment. They need to identify the monomer of carbohydrates for their experiment. Can you help them?

• Glucose

• Maltose

• Lactose

• Sucrose

Answer explanation

Carbohydrates are made up of sugar molecules, and the simplest form of these is monosaccharides. Glucose, a type of monosaccharide, is the monomer unit of carbohydrates. It is the simplest form of sugar that serves as an essential energy source. Maltose, Lactose, and Sucrose are all disaccharides, meaning they are composed of two monosaccharide units.

James, Luna, and Benjamin are having a picnic. They brought different types of food. James brought carbohydrates, Luna brought lipids, and Benjamin brought proteins. If Luna's food is left out in the sun, it won't spoil because it is hydrophobic. Which biomolecule did Luna bring?

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

Answer explanation

Lipids are considered hydrophobic or 'water-fearing' because they are non-polar and do not mix well with water. Unlike carbohydrates, proteins, and nucleic acids which are polar and hydrophilic.

Arjun, Mason, and Harper are planning a long-distance cycling trip. They need to choose the right food for energy. Which of the following would be the best source of energy for their trip?

• Food rich in carbohydrates

• Food rich in lipids for cell membrane structure

• Food rich in proteins for muscle tissue formation

• Food rich in hormones for cell signaling

Answer explanation

Carbohydrates are one of the main types of nutrients. They are the most important source of energy for your body. Your digestive system changes carbohydrates into glucose (blood sugar), which is used by your body for energy. Therefore, the major function of carbohydrates is energy storage, making the correct answer 'Energy storage'.

Tags

NGSS.HS-LS1-7

Michael, Benjamin, and Emma are studying for their biology exam. They are discussing the structure of the cell membrane. Emma suggests that a certain biomolecule makes up the cell membrane structure. Which biomolecule is she referring to?

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

Answer explanation

The cell membrane, also known as the plasma membrane, mainly consists of lipids. These lipids are specifically phospholipids, which form a bilayer. This formation allows the cell membrane to control what enters and exits the cell, maintaining the cell's internal environment. Therefore, lipids, not proteins, carbohydrates, or nucleic acids, make up the cell membrane structure.

Charlotte, Mason, and Ethan are in a biology class. Their teacher asked them, 'What is the monomer of proteins that you consume in your diet?'

• Glucose

• Maltose

• Amino acid

• Nucleotide

Answer explanation

Proteins are complex molecules; they require a simpler set of molecules to be synthesized. This set of simpler molecules are known as monomers. In the case of proteins, the monomers are amino acids. Therefore, the correct answer to the question, 'What is the monomer of proteins?' is 'Amino acid'.

Priya, Maya, and Avery are discussing their biology homework. They are trying to figure out which biomolecule is involved in protecting the body. Can you help them?

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

Answer explanation

Proteins are the correct answer because they play crucial roles in the body, including protection. Antibodies, a type of protein, help the immune system to fight off bacteria, viruses, and other harmful organisms, hence protecting the body. Other biomolecules like carbohydrates, lipids, and nucleic acids have different primary functions.

Anika, Evelyn, and Henry are studying biology. They are discussing about the structure of nucleic acids. Anika asks, 'What is the monomer of nucleic acids?'

• Glucose

• Maltose

• Amino acid

• Nucleotide

Answer explanation

Nucleic Acids are polymers, and these large molecules are composed of smaller sub-units called monomers. The monomers of nucleic acids are Nucleotides. Hence, the correct answer to the question is 'Nucleotide'. Other options like Glucose, Maltose, and Amino acid are not relevant to this context as they are the monomers of other biomolecules, but not nucleic acids.

Mia, Olivia, and Jackson are studying for their biology exam. They come across a question about biomolecules. They want to know which biomolecule contains carbon, hydrogen, oxygen, nitrogen, and phosphorous?

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

Answer explanation

Nucleic acids are the only option from the given list that contains all five elements: carbon, hydrogen, oxygen, nitrogen, and phosphorous. The other options – carbohydrates, lipids, and proteins – lack phosphorous. Therefore, the correct answer to the question 'Which biomolecule contains carbon, hydrogen, oxygen, nitrogen, and phosphorous?' is nucleic acids.

Aria, William, and Ethan are studying biology. They are discussing the major function of nucleic acids in the human body. What do they conclude?

• They are primarily for energy storage

• They form the structure of cell membranes

• They are responsible for muscle tissue formation

• They are crucial for genetic coding

Answer explanation

Nucleic acids (DNA and RNA) are responsible for the storage and reading of genetic information in organisms. This genetic coding is crucial for the synthesis of proteins and the regulation of cellular activities. Other options mentioned like energy storage, cell membrane structure and muscle tissue formation are not the primary function of nucleic acids.

Evelyn, Henry, and Arjun are studying for their biology exam. They come across a question about biomolecules. They want to know which biomolecule contains the building block called monosaccharide. Can you help them?

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

Answer explanation

Monosaccharides are the simplest form of sugars and are the basic units of carbohydrates. The question asks about the biomolecule that contains this building block. Among the options, carbohydrates is the correct answer as they are composed of these monosaccharides.