The Living Cell

What is the continuous cycle of hydrolysis and dehydration reactions involving sugars and amino acids?

• A) Sugars to Proteins

• B) Sugars to Amino acids

• C) Proteins to Sugars

• D) Amino acids to Sugars

Cellular respiration extracts energy from sugars and other fuels. This energy is used to carry on cellular processes such as the transport of solutes, which is ______ driven.

• ATP

• Glucose

• Protein

• Lipid

What is the process called when sugars are converted to amino acids and then to proteins?

• Hydrolysis

• Dehydration Synthesis

• Photosynthesis

• Respiration

In the process of hydrolysis, proteins are broken down into amino acids and then into what?

• Lipids

• Sugars

• Nucleic Acids

• Fatty Acids

What do cells break down to generate energy?

• Proteins

• Sugars

• Fats

• Nucleic acids

Energy is converted to support cellular work, such as the transport of solutes. This process is driven by ______.

• ATP

• DNA

• RNA

• Lipids

What does metabolism collectively refer to?

• All the cell's chemical reactions

• Only the cell's energy production

• The cell's waste removal

• The cell's DNA replication.

Metabolism is an emergent property of life arising from interactions of molecules within the ______.

• nucleus

• cell

• mitochondria

• ribosome

Which of the following statements is true about metabolic pathways?

• They have only one step.

• They begin with a specific molecule and end with a particular product.

• Each step is not catalyzed by enzymes.

• They do not involve any regulation.

In a metabolic pathway, the starting molecule is transformed into a product through a series of steps. Fill in the blank: Each step is usually catalyzed by a specific _______.

• molecule

• enzyme

• product

• reaction