MCB 150 Study Set Pre/Post Questions-Exam 1 With Complete Solutions

MCB 150 Study Set Pre/Post Questions-Exam
1 With Complete Solutions

For prokaryotic cells, which statement is correct concerning how the structure
of a particular cell component correlates with its function? - ANSWER The cell
wall is a tough, fibrous layer that protects the cell and gives it shape and rigidity.

In lateral gene transfer, genes are ______. - ANSWER moved from one species to
another

Which character separates bacteria from archaea? - ANSWER Bacteria have
peptidoglycan in their cell wall.

What does it mean to say that prokaryotic organisms have "compact" genomes,
relative to eukaryotic genomes? See Section 20.4 (Page 406) . - ANSWER The
ratios between their number of genes and their genome sizes are generally
larger than those in eukaryotes.

For eukaryotic cells, which answer best describes the function of the indicated
component? - ANSWER Peroxisome: detox center

Activity: Making and Breaking Polymers

Part A: What is another name for a condensation reaction?

Part B:What is the name of the process during which a bond between two
monomers is broken?

Part C:
1. Carbohydrate polymers are made up of_______ monomers.
2. Protein polymers are made up of______ monomers.
3. Nucleic acid polymers are made up of ______ monomers. - ANSWER Part A:
dehydration

Part B: hydrolysis

Part C:
1. Simple Sugars
2. Amino Acid
3. Nucleotide

,Activity: Condensation and Hydrolysis Reactions
Part A: Which polymers are composed of amino acids?

Part B: Which of the following is not attached to the central carbon atom in an
amino acid?

Part C: Which part of an amino acid is always acidic?

Part D:
Which monomers make up RNA?

Part E:
Which of the following statements about the formation of polypeptides from
amino acids is true?

Part F: True or false? Enzymes in the digestive tract catalyze hydrolysis
reactions. - ANSWER Part A: Proteins

Part B: An oxygen

Part C: Carboxyl functional group

Part D: Nucleotides

Part E: A bond forms between the carboxyl functional group of one amino acid
and the amino functional group of the other amino acid.

Part F: True

If the surface area of a cell increases by a factor of 100, the volume of that cell
will - ANSWER increase by a factor of 1000.

Which one of the following is a tenet of the Cell Theory? [Note: Keep in mind that
just because a given statement is accurate does not necessarily mean it
answers the question that has been posed.] - ANSWER All cells come from pre-
existing cells.

Cells are the fundamental units of life.

All organisms are composed of cells.

Which of the following statements about archae is correct? - ANSWER Archaea
share similar structural features with bacteria, but are not bacteria.

Archaea share similar biochemical features with eukaryotes, but are not
eukaryotes.

, Part A: _____ are surface appendages that allow a bacterium to stick to a
surface.

Part B: What is the function of a bacterium's capsule?

Part C: The DNA-containing region of this bacterial cell is indicated by the letter
_____.

Part D: Where is a bacterial cell's DNA found?

Part E: In a bacterium, where are proteins synthesized?

Part F: What name is given to the rigid structure, found outside the plasma
membrane, that surrounds and supports the bacterial cell?

Part G: The _____ is the bacterial structure that acts as a selective barrier,
allowing nutrients to enter the cell and wastes to leave the cell.

Part H: The structure that regulates the passage of material into and out of this
bacterial cell is indicated by the letter _____. - ANSWER Part A: Fimbriae

Part B: protection

Part C: D

Part D: nucleoid region

Part E: ribosomes

Part F: cell wall

Part G: plasma membrane

Part H: C

Activity: Review: Animal Cell Structure and Function

Part A: Choose the letter that indicates the organelle that contains most of a
cell's DNA.

Part B: Which of these organelles carries out cellular respiration?

Part C: Which of these is the double membrane that encloses the nucleus?

Part D: The _____ is composed of DNA and protein.