Answer: Option B) They can be altered reversibly during a reaction.
Explanation:
An enzyme is a proteinous substance that catalyzes a specific chemical reaction. It does not affect the equilibrium of the catalyzed reaction, and it always remain unaltered during the reaction process.
Thus, becoming altered is not a characteristic of enzymes
Well, the leaves contain stomates, which let in CO2 and release O2. The roots collect water, which travel up the xylem, which are contained in the stem.
Answer:
I believe it's D. the skeleton protects the brain and the spinal cord.
The statement that correctly compares nucleis acids and carbohydrates is that they both contain carbon, but only nucleic acids contaion phosphorus.
