Bio 2 Mid-term Exam (Spring 2014)
- 1.The process by which a DNA molecule is copied is ___.
- A.
Transcription
- B.
Translation
- C.
Replication
- D.
Mutation
- 2.There are literally hundreds of thousands of different organic molecules. Which statement best explains how this is possible?
- A.
Elements can make an unlimited number of chemical bonds.
- B.
Carbon is unique in that it can make four chemical bonds.
- C.
Carbon can make twenty bonds to other carbon atoms.
- D.
Organic molecules are acidic.
- 3.Which of the following is NOT true of water?
- A.
It resists change in temperature.
- B.
It is considered the "universal solvent".
- C.
It can diffuse through lipids easily.
- D.
It has unique properties due to its polarity.
- 4.Organic compounds always contain the element ____.
- A.
Carbon
- B.
Nitrogen
- C.
Oxygen
- D.
Organium
- 5.How many amino acids are found in humans?
- A.
12
- B.
16
- C.
20
- D.
24
- 6.The functional group -NH2 is called the ____.
- A.
Amino group
- B.
Acid group
- C.
Hydroxide group
- D.
Fatty acid
- 7.Which of the following is a structural form of carbohydrate?
- A.
Cellulose
- B.
Starch
- C.
Enzyme
- D.
RNA
- 8.Which of the following monomers make up a lipid?
- A.
Glycerol and fatty acid
- B.
Glycerol and amino acids
- C.
Glycerol and nucleic acids
- D.
Thymine and guanine
- 9.Which of the following is NOT a nucleotide found in DNA?
- A.
Adenine
- B.
Cytosine
- C.
Uracil
- D.
Guanine
- 10.Which of the following is a polymer of nucleotides?
- A.
Nucleic Acid
- B.
Protein
- C.
Carbohydrate
- D.
Lipid
- 11.Which of the following is a polymer of amino acids?
- A.
Protein
- B.
Carbohydrate
- C.
Lipid
- D.
Nucleic Acid
- 12.What is the main function of the Krebs cycle?
- A.
Breaking down pyruvate molecules to form molecules of NADH and oxygen
- B.
Forming citric acid to make NADH, water, and carbon dioxide
- C.
Producing molecules that carry high-energy electrons to the electron transport chain
- D.
Bonding coenzyme A to pyruvate
- 13.
Which stage of the cell cycle is illustrated on the right?- A.
Prophase
- B.
Cytokinesis
- C.
Telophase
- D.
Anaphase
- 14.Which phrase best describes the electron transport chain in photosynthesis?
- A.
A chain of photosynthetic proteins located in the stroma
- B.
A collection of enzymes used to make ADP
- C.
A series of proteins located in the thylakoid membrane
- D.
A group of enzymes that carries energy to the Calvin cycle
- 15.The process by which plants use sunlight to make glucose is called ___.
- A.
Photosynthesis
- B.
Cellular respiration
- C.
The cell cycle
- D.
Mitosis
- 16.Which of the following takes place in the light-dependent reactions of photosynthesis?
- A.
Sugars are made.
- B.
Energy is captured.
- C.
Chlorophyll is pumped.
- D.
Carbon dioxide is formed.
- 17.The main light-absorbing molecules found in plant leaves are called
- A.
Chloroplasts
- B.
Thylakoids
- C.
Chlorophyll
- D.
Grana
- 18.Which of the following statements best describes the process of photosynthesis?
- A.
Plants use oxygen to make simple sugars.
- B.
Chlorophyll builds sugars in the thylakoid membrane.
- C.
Light breaks down water molecules and releases carbon dioxide.
- D.
Chloroplasts absorb sunlight and store chemical energy.
- 19.What is the term for the jelly-like substance that is contained inside the cell membrane?
- A.
Cytoplasm
- B.
Nucleus
- C.
Organelle
- D.
DNA
- 20.Which of the following is a characteristic of S phase?
- A.
Cell growth and normal function.
- B.
Cell growth and preparation for mitosis.
- C.
Nuclear membrane reforms.
- D.
DNA is replicated.
- 21.
Which stage of mitosis is illustrated on the right?
- A.
Prophase
- B.
Metaphase
- C.
Telophase
- D.
Anaphase
- 22.Which of the following is a characteristic of prophase?
- A.
Nuclear membrane breaks down.
- B.
Chromosomes line up in the middle of the cell.
- C.
Sister chromatids are pulled to opposite sides of the cell.
- D.
The cytoplasm splits.
- 23.
Which stage of mitosis is illustrated on the right?
- A.
Prophase
- B.
Metaphase
- C.
Telophase
- D.
Anaphase
- 24.What is the main function of the Golgi apparatus?
- A.
Convert solar energy to chemical energy
- B.
Communicate with other cells
- C.
Process and deliver proteins
- D.
Copy genetic material
- 25.Which of the following is a characteristic of G2 phase?
- A.
Cell growth and normal function.
- B.
Cell growth and preparation for mitosis.
- C.
Nuclear membrane reforms.
- D.
DNA is replicated.
.jpg "Which stage of mitosis is illustrated on the right?")
.jpg "Which stage of mitosis is illustrated on the right?")
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