EOC Review

What is the basic building block of proteins?

• Nucleotides

• Amino acids

• Fatty acids

• Monosaccharides

Which of the following is a function of enzymes in biological systems?

• They provide energy for reactions.

• They speed up chemical reactions.

• They are used up in reactions.

• They act as structural components.

Describe how the circulatory and respiratory systems interact in animals.

• The circulatory system transports oxygen from the respiratory system to cells.

• The respiratory system digests food for the circulatory system.

• The circulatory system produces oxygen for the respiratory system.

• The respiratory system removes waste from the circulatory system.

Which component of the cell membrane is primarily responsible for its fluidity?

• Proteins

• Cholesterol

• Carbohydrates

• Nucleic acids

Explain the role of tonicity in cell transport.

• Tonicity determines the direction of water movement across a cell membrane.

• Tonicity provides energy for active transport.

• Tonicity is responsible for the synthesis of proteins.

• Tonicity regulates the cell cycle.

What is the primary function of the cell membrane?

• To store genetic information

• To control the movement of substances in and out of the cell

• To produce energy for the cell

• To synthesize proteins

Identify the main structural component of a virus.

• Cell wall

• Protein coat

• Nucleus

• Ribosome

How does cell differentiation contribute to the function of multicellular organisms?

• It allows cells to perform specialized functions.

• It causes cells to lose their ability to divide.

• It results in the death of cells.

• It prevents cells from communicating.

What is a characteristic feature of cancer cells?

• They undergo controlled cell division.

• They have a normal cell cycle.

• They divide uncontrollably.

• They do not require nutrients.

Explain how enzymes lower the activation energy of a reaction.

• Enzymes increase the temperature of the reaction.

• Enzymes provide an alternative reaction pathway.

• Enzymes increase the concentration of reactants.

• Enzymes change the pH of the reaction.