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Biomolecules, Enzymes %26 Water

Hint: Some of the questions have more than one correct answer.

1. Which kind of macromolecule provides building blocks for tissues, transports other molecules, and helps regulate certain reactons in the body?
Both dissolved in water, Both are sources of energy for a cell, Both have the same number of oxygen atoms, Both have the same number of carbon-hydrogen bonds,
2. Biochemical catalysts
nucleic acids, amino acids, simple sugars , fatty acids,
3. Reactants
speeding up chemical reactions, forming bones and hair crossword maker , transmitting nerve impulses, protecting internal organs,
4. Which of the following is a property shared by lipids and carbohydrates?
are the atoms, molecules, or compounds that enter into a chemical reaction, are involved in chemical reactions, result from products, none of the above,
5. Everything that happens in a cell is the result of a chemical reaction.
TRUE, FALSE, ,
6. Enzymes are not reuseable.
is a chemical reaction in a living thing, must occur at certain speeds or rates, can be sped up by adding a catalyst, are an example of lipids,
7. Which sentence best describes the shapes of substates and the active sites of enzymes?
the temperature, the amount of available reactants, the surface area over which the reaction takes place, none of the above,
8. The rate of a chemical reaction depends on several factors, such as
TRUE, FALSE, ,
9. Which compounds join to form proteins?
allows a chemical reation to occur faster., creates a homeostatic reaction, regulates oxygen, all of the above,
10. Products are the atoms, molecules, or compounds that result from the reaction.
TRUE, FALSE, class web page ,
11. The %22lock and key%22 model represents a reaction between an enzyme and a substrate.
new substrate, new compound, active site, catalyst,
12. A catalyst is the substance that
makes chemical reactions within cells possible or speeds them up, is a protein that is a biochemical catalyst, is a lipid that is a biochemical catalyst, slows down chemical reactions,
13. An enzyme
TRUE, FALSE e-learning , ,
14. Which of these is a function of lipids?
TRUE, FALSE, ,
15. Substrates bind to a part of the enzyme called the
They are both concave., They are identical. assess performance , They are complementary., They are both convex.,