Proteins and DNA Quiz

What are proteins and DNA essential for in living organisms?

• They are essential for digestion and metabolism.

• They are essential for cellular structure and function.

• They are essential for sensory perception.

• They are essential for plant photosynthesis.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Which of the following is NOT a function of proteins?

• Enzymes: help with chemical reactions.

• Structural proteins: provide support and structure to cells and tissues.

• Antibodies: defend against infections.

• Carbohydrates: provide energy and structure.

What is the correct sequence of protein synthesis?

• DNA → protein → mRNA

• mRNA → DNA → protein

• DNA → mRNA → protein

• protein → mRNA → DNA

What is the role of mRNA in protein synthesis?

• It adds amino acids together one by one.

• It serves as the blueprint for protein synthesis.

• It carries the instructions to the ribosome where the protein will be made.

• It helps move molecules across cell membranes.

What is the analogy used for transcription in protein synthesis?

• Writing a recipe

• Following a recipe

• Reading a cookbook

• Making the cookie

What is the analogy used for translation in protein synthesis?

• Writing a recipe

• Following a recipe

• Reading a cookbook

• Making the cookie

What does transcription involve in protein synthesis?

• DNA replicating itself within the nucleus

• mRNA leaving the nucleus to bind with ribosomes

• DNA being copied into mRNA

• Proteins entering the nucleus to copy DNA

During transcription, which base in DNA is replaced by uracil (U) in mRNA?

• Adenine (A)

• Guanine (G)

• Cytosine (C)

• Thymine (T)

What is a codon?

• A sequence of two nucleotides

• A type of protein

• A sequence of three nucleotides

• A molecule that carries amino acids

What is the role of the genetic code in protein synthesis?

• It replicates DNA within the nucleus

• It translates mRNA into a protein sequence

• It modifies the DNA structure

• It transports proteins out of the cell

Tags

NGSS.HS-LS1-1