Question

question 10
1 pts
when two amino acids are joined, a peptide bond is formed and an h+ ion is released.
true
false
question 11
1 pts
what determines how a protein performs?
shape
size
quantity
peptide bonds
question 12
1 pts
dna and rna are important because
information molecules.
they conserve energy.
each one is a valuable source of energy.
they serve as catalysts.
question 13
1 pts

Explanation:

• Question 10: When two amino - acids join via a dehydration synthesis reaction, a peptide bond is formed and a water molecule ($H_2O$) is released, not just an $H^+$ ion. So the statement is false.
• Question 11: The function of a protein is determined by its three - dimensional shape. The shape is in turn determined by the amino - acid sequence and folding patterns.
• Question 12: DNA and RNA are information - carrying molecules. DNA stores genetic information and RNA is involved in processes like transcription and translation. They are not primarily for energy conservation, energy sources, or serving as catalysts (although some RNA can be catalytic).

Answer:

• Question 10: B. False
• Question 11: A. shape
• Question 12: A. information molecules