Principles of Cell Biology 3rd Edition Plopper

Ans: D

Principles of Cell Biology 3rd Edition Plopper Test Bank

Chapter: Chapter 01 – Practice Activity

Multiple Choice

• What specifically about water makes it a good insulator against any heat generated by chemical

reactions in a cell?

• Its ability to exist as liquid at room temperature, normal atmospheric pressure
• The fact that it is a very polar molecule
• Its liquid phase has a higher density than its solid phase
• Its extensive hydrogen bonding
• It can form covalent bonds with n

T itr E og S e T n

Complexity: Moderate

Ahead: Life Can Arise from Simple Ingredients

Subject: Chapter 1

Title: Life is a Team Sport

Taxonomy: Application

2. The most common compound in the cell is:

• water.
• hydrocarbons.
• sugars.
• fats.
• nucleic acids.

Ans: A

Complexity: Easy

Ahead: Life Can Arise from Simple Ingredients

Subject: Chapter 1

Title: Life is a Team Sport

Taxonomy: Recall

• What is not a characteristic of the plasma membrane?
• Acts as a semipermeable barrier
• Regulates traffic into and out of the cell using transmembrane proteins
• Has protein complexes that form connections to other cells as well as the basement membrane 1 / 4

• Allows free passage of all ions into and out of the cell
• Responsible for maintaining/regulating the internal consistency of the cytoplasm

Ans: D

Complexity: Moderate

Ahead: Life Can Arise from Simple Ingredients

Subject: Chapter 1

Title: Life is a Team Sport

Taxonomy: Recall

• Which statement about carbon bonds is true?
• When carbon is covalently bound to three or two other atoms, these bonds are arranged in a single

plane in space.

• A single carbon atom can form covalent bonds with hydrogen or oxygen but not both.
• Like water, carbon is inherently polar, and it forms hydrogen bonds with water.
• The alpha carbon of an amino acid must form one covalent bond with hydrogen and a second covalent

bond with a hydroxyl (-OH) group.

• Carbons in lipids form hydrophobic covalent bonds with other carbons, but carbons in sugars form

hydrophilic covalent bonds with other carbons.

Ans: A

Complexity: Easy

Ahead: All Cells Are Built from the Same Common Molecular Building Blocks

Subject: Chapter 1

Title: Life is a Team Sport

Taxonomy: Application

• Carbon is a building block for structures in living systems. When joined with four other atoms, it forms:
• a tetrahedron with two double bonds and two single bonds.
• a tetrahedron with four single bonds.
• a tetrahedron with four double bonds.
• a tetrahedron with three double bonds and a single bond.

Ans: B

Complexity: Moderate

Ahead: All Cells Are Built from the Same Common Molecular Building Blocks

Subject: Chapter 1

Title: Life is a Team Sport

Taxonomy: Application

• Which statement about carbohydrates is false?
• They are hydrophilic molecules.
• They form rings or linear structures.
• They can be attached to proteins.
• They are composed of carbon, hydrogen, oxygen, and sometimes nitrogen.
• All of these are correct.

Ans: D

Complexity: Moderate

Ahead: All Cells Are Built from the Same Common Molecular Building Blocks

Subject: Chapter 1

Title: Life is a Team Sport

Taxonomy: Application 2 / 4

• A prokaryotic cell is deemed a prokaryotic cell because it is characterized by the lack of

a/n:

• mitochondria.
• cell membrane.
• endoplasmic reticulum.
• ribosomes.
• nucleus.

Ans: E

Complexity: Moderate

Ahead: Cells Must Cooperate to Succeed

Subject: Chapter 1

Title: Life is a Team Sport

Taxonomy: Recall

• Which of the following statements about a cell is true?
• The eukaryotic cell is subdivided into various compartments.
• Organelles carry out many of the day-to-day housekeeping chores.
• Cells show a high degree of division of labor.
• Cells contain thousands of proteins, but each only carries out, at best, a small number of functions.
• All of these are correct.

Ans: E

Complexity: Easy

Ahead: Cells Must Cooperate to Succeed

Subject: Chapter 1

Title: Life is a Team Sport

Taxonomy: Recall

9. The main function(s) of mitochondria is/are to:

• produce ATP.
• break down glucose into structurally simpler molecules.
• form carbon dioxide.
• utilize oxygen to form water.
• All of these are correct.

Ans: E

Complexity: Easy

Ahead: Cells Must Cooperate to Succeed

Subject: Chapter 1

Title: Life is a Team Sport

Taxonomy: Recall

Matching

• Match the following molecular building blocks with their corresponding polymers:
• Fatty acids and glycerol

Ans: Lipids

• Amino acids 3 / 4

Ans: Proteins

• Monosaccharides

Ans: Carbohydrates

• Nucleotides

Ans: Nucleic acids

Complexity: Moderate

Ahead: All Cells Are Built from the Same Common Molecular Building Blocks

Subject: Chapter 1

Title: Life is a Team Sport

Taxonomy: Application

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