Question 1

-What type of molecule is shown in Figure 2.2?

Accepted Answer

A)   disaccharide
B)   amino acid
C)   monosaccharide
D)   phospholipid
E)   fatty acid

Question 2

Where does RNA polymerase bind to initiate transcription?

Accepted Answer

A)   hormone response element
B)   promoter sequence
C)   initiation factor
D)   leader sequence
E)   P subunit of the ribosome

Question 3

Which of the following is NOT a monosaccharide?

Accepted Answer

A)   lactose
B)   glucose
C)   fructose
D)   deoxyribose
E)   galactose

Question 4

Continuous with the outer portion of the nuclear pore, what membrane -bound structure functions in the synthesis of secretory proteins, integral membrane proteins, or proteins bound for other organelles?

Accepted Answer

A)   rough endoplasmic reticulum
B)   mitochondria
C)   lysosome
D)   nucleolus
E)   smooth endoplasmic reticulum

Question 5

The cytoskeleton suspends the organelles within the cytoplasm.

Accepted Answer

A) True 
 B)False

Question 6

Formation of peptide bonds occurs by condensation reactions between the group of one amino acid and the group of another.

Accepted Answer

A)   glucose : glucose
B)   fatty acid : glycerol
C)   amino acid : amino acid
D)   carboxyl : amino acid amino

Question 7

What type of integral membrane protein spans the membrane, thereby allowing part of it to face the cytosol and another part to face the extracellular fluid?

Accepted Answer

A)   steroid receptor
B)   peripheral membrane protein
C)   transmembrane protein
D)   paramembrane protein
E)   glycoprotein

Question 8

Which of the following descriptions of the function of the organelle is FALSE?

Accepted Answer

A)   Breakdown of phagocytosed bacteria occurs in the peroxisomes.
B)   Peptide hormone synthesis occurs in the rough endoplasmic reticulum.
C)   Calcium is stored in the smooth endoplasmic reticulum.
D)   Oxidative phosphorylation occurs in the mitochondria.
E)   Packaging of secretory products into vesicles occurs in the Golgi apparatus.

Question 9

Carbohydrates and lipids are important biomolecules that store energy for the body to use later. Describe the structures and properties of carbohydrates and lipids, including the different forms of these biomolecules that are present within the body.

Accepted Answer

Carbohydrates have the general structure...

Question 10

The exon is cut from the original mRNA sequence, leaving the intron as the portion of mRNA that leaves the nucleus to be translated into a protein.

Accepted Answer

A) True 
 B)False

Question 11

Helicase catalyzes the unwinding of DNA during transcription.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following is NOT an integral membrane protein?

Accepted Answer

A)   occludins
B)   channels for ion diffusion across membranes
C)   actin
D)   carrier proteins for mediated transport
E)   connexons

Question 13

Which of the following is an example of a fibrous protein?

Accepted Answer

A)   growth hormone
B)   Na+/K+ pumps
C)   insulin
D)   hemoglobin
E)   collagen

Question 14

Intercellular communication can occur through the binding of a chemical released from one cell to a specific

Accepted Answer

A)   receptor on another cell.
B)   clathrin -coated vesicle
C)   phagosome
D)   organelle
E)   nucleus

Question 15

What is the innermost chamber of a mitochondrion called?

Accepted Answer

A)   nucleolus
B)   plasma membrane
C)   nuclear envelope
D)   matrix
E)   nuclear pore

Question 16

Guanine and cytosine are held together by two hydrogen bonds.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following is NOT a possible destination for proteins that are completely synthesized on ribosomes free in the cytosol?

Accepted Answer

A)   peroxisome
B)   secreted from the cell
C)   mitochondrion
D)   nucleus
E)   remains in cytosol

Question 18

Post -transcriptional processing adds a(n)  to the 3' end of the mRNA molecule.

Accepted Answer

A)   intron
B)   poly C tail
C)   exon
D)   poly A tail
E)   cap

Question 19

All of the following are basic components of proteins EXCEPT

Accepted Answer

A)   potassium.
B)   oxygen.
C)   hydrogen.
D)   carbon.
E)   nitrogen.

Question 20

Okazaki fragments are

Accepted Answer

A)   small sections of newly formed DNA, built on the lagging (5' to 3')  template strand.
B)   small sections of nonsense code found between genes.
C)   protein fragments released from a proteasome.
D)   sections of newly formed DNA, built on the leading (3' to 5')  template strand.
E)   small sections of DNA that do not code for protein found within a gene.

Exam 2: The Cell: Structure and Function

Okazaki fragments are

Correct AnswerverifiedShow Answer

What is the innermost chamber of a mitochondrion called?

Correct AnswerverifiedShow Answer

Helicase catalyzes the unwinding of DNA during transcription.

Correct AnswerverifiedShow Answer

Continuous with the outer portion of the nuclear pore, what membrane -bound structure functions in the synthesis of secretory proteins, integral membrane proteins, or proteins bound for other organelles?

Correct AnswerverifiedShow Answer

Guanine and cytosine are held together by two hydrogen bonds.

Correct AnswerverifiedShow Answer

Which of the following is NOT a monosaccharide?

Correct AnswerverifiedShow Answer

The cytoskeleton suspends the organelles within the cytoplasm.

Correct AnswerverifiedShow Answer

Intercellular communication can occur through the binding of a chemical released from one cell to a specific

Correct AnswerverifiedShow Answer

Which of the following descriptions of the function of the organelle is FALSE?

Correct AnswerverifiedShow Answer

-What type of molecule is shown in Figure 2.2?

Correct AnswerverifiedShow Answer

Which of the following is NOT an integral membrane protein?

Correct AnswerverifiedShow Answer

What type of integral membrane protein spans the membrane, thereby allowing part of it to face the cytosol and another part to face the extracellular fluid?

Correct AnswerverifiedShow Answer

The exon is cut from the original mRNA sequence, leaving the intron as the portion of mRNA that leaves the nucleus to be translated into a protein.

Correct AnswerverifiedShow Answer

Formation of peptide bonds occurs by condensation reactions between the group of one amino acid and the group of another.

Correct AnswerverifiedShow Answer

Post -transcriptional processing adds a(n) to the 3' end of the mRNA molecule.

Correct AnswerverifiedShow Answer

Carbohydrates and lipids are important biomolecules that store energy for the body to use later. Describe the structures and properties of carbohydrates and lipids, including the different forms of these biomolecules that are present within the body.

Correct AnswerverifiedCarbohydrates have the general structure...View AnswerShow Answer

Which of the following is an example of a fibrous protein?

Correct AnswerverifiedShow Answer

Which of the following is NOT a possible destination for proteins that are completely synthesized on ribosomes free in the cytosol?

Correct AnswerverifiedShow Answer

All of the following are basic components of proteins EXCEPT

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Where does RNA polymerase bind to initiate transcription?

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Carbohydrates have the general structure...
View Answer

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