WGU Biochemistry C624

WGU Biochemistry C624 Leave the first rating Students also studied Terms in this set (193) Science Biology Biochemistry Save WGU C389 - Science, Technology & ...Teacher 64 terms MossyScience Preview WGU Biochemistry OA 164 terms JSh03maker2017 Preview

Unit 5: Hemoglobin & Myoglobin- Bi...

19 terms korrinjohnson1991 Preview Unit 5 - Teacher Mr_ Primary structure consists of the order of ______ in a protein. These are held together with ______ bonds that are formed by a ______ reaction.Amino Acids, Peptide, hydration Several types of side chain interactions stabilize the tertiary structure of proteins, including which of the following?Ion pairs, hydrophobic interactions, hydrogen bonds, disulfide bonds Which of the following statements is true about the secondary structure of proteins? a. It includes alpha helices as a common form.

• It involves hydrogen bonding between the backbone

atoms.

• All of these.
• It includes beta pleated sheets as a common form.
• All of these.

In order to fulfill their function, proteins must fold in proper, three-dimensional conformations. Which one of the following molecules, available in a cell, is likely to help a protein fold properly?Chaperone Which of the following is true about a mis-folded protein? a. All of these.

• It can be the result of denaturation.
• It can cause protein aggregation.
• It will lose its normal function.
• It can be degraded by the cell.

Which of the following is true about a mis-folded protein?

Which of the following amino acids would you expect to find in the interior of a protein most often?Which of the following amino acids would you expect to find most often on the exterior surface of a protein?question has 2 answers Which of the following amino acids would you expect to find most often on the exterior surface of a protein?B - Carboxylic acid! Peptide bonds are formed between the amino group (A) and carboxylic acid group (B) of amino acids.A - Amino group! Peptide bonds are formed between the amino group (A) and carboxylic acid group (B) of amino acids.Which part(s) of the amino acid below can be involved in peptide bond formation?Which part(s) of the amino acid below contributes to tertiary structure stabilization?

• C - Alpha Carbon
• B - Carboxylic Acid
• A - Amino group
• D - R group
• D - R group Tertiary structure is stabilized primarily by interactions between

different R groups.Drag the name of the protein structure level to the part of the amino acid that primarily contributes to that structure level. Primary Structure Secondary Structure Tertiary Structure Quaternary Structure Primary Structure Secondary Structure Tertiary Structure Quaternary Structure You are designing a piece of DNA for a project and must select the appropriate nitrogenous bases. Which combination of nitrogenous bases would you find most suitable for your work?

• Adenine, Guanine, Thymine, Cytosine.
• Thymine, Uracil, Adenine, Cytosine
• Adenine Guanine, Uracil and Thymine
• Adenine, Thymine, Cytosine, Uracil
• Adenine, Guanine, Thymine, Cytosine

These nitrogenous bases, in combination with deoxyribose sugar and phosphate, form the nucleotides that are bonded together to form a long polymer of DNA - the carrier of genetic information.

• 5'-TACTAGGAA-3' The bases on the newly made

daughter strand are complementary to the bases on the template strand, but with the opposite 5' and 3' orientation.The DNA sequence 3'-ATGATCCTT-5' is part of the template strand during DNA replication. Which of the following would be the correct sequence for the newly made DNA?

Select one:

• 5'-ATGATCCTT-3'
• 5'-GCAGCTTCC-3'
• 5'-UACUAGGAA-3'
• 5'-TACTAGGAA-3
• All of these. All of these statements about RNA are

true. The cell contains mRNA, rRNA, and tRNA molecules, RNA is single stranded, RNA contains a ribose sugar in the sugar-phosphate backbone, and RNA nucleotides include the bases A, U, C, and G.

• RNA is single stranded and contains a ribose sugar in the sugar-phosphate

backbone.

• RNA nucleotides include the bases A, U, C, and G.
• All of these.
• There are several types of RNA in the cell, including mRNA, rRNA, and tRNA.
• Adenine, Guanine, Thymine, Cytosine

These nitrogenous bases, in combination with deoxyribose sugar and phosphate, form the nucleotides that are bonded together to form a long polymer of DNA

• the carrier of genetic information.

You are designing a piece of DNA for a project and must select the appropriate nitrogenous bases. Which combination of nitrogenous bases would you find most suitable for your work?

Select one:

• Adenine, Guanine, Thymine, Cytosine
• Thymine, Uracil, Adenine, Cytosine
• Adenine Guanine, Uracil and Thymine
• Adenine, Thymine, Cytosine, Uracil
• 5'-TACTAGGAA-3'

The bases on the newly made daughter strand are complementary to the bases on the template strand, but with the opposite 5' and 3' orientation.The DNA sequence 3'-ATGATCCTT-5' is part of the template strand during DNA replication. Which of the following would be the correct sequence for the newly made DNA?

Select one:

• 5'-ATGATCCTT-3'
• 5'-GCAGCTTCC-3'
• 5'-TACTAGGAA-3'
• 5'-UACUAGGAA-3'
• All of these! All of these statements about RNA are

true. The cell contains mRNA, rRNA, and tRNA molecules, RNA is single stranded, RNA contains a ribose sugar in the sugar-phosphate backbone, and RNA nucleotides include the bases A, U, C, and G.Which of the following statements is TRUE about RNA?

Select one:

• There are several types of RNA in the cell, including mRNA, rRNA, and tRNA.
• All of these
• RNA is single stranded and contains a ribose sugar in the sugar-phosphate

backbone.

• RNA nucleotides include the bases A, U, C, and G.

• RNA polymeraseIn order to stop an infection caused by bacteria, which of the following molecules

would you target to kill the bacteria, without harming the human cell which harbors the bacteria?

Select one:

• RNA nucleotides
• Phosphodiester bonds
• DNA nucleotides
• RNA polymerase
• messenger RNA (mRNA)A research scientist is trying to create a new strain of bacteria that can produce a

protein needed for her research. Which of the following molecules will act as a template in creating the protein?

Select one:

• Ribosomal RNA(rRNA)
• Ribozyme
• transfer RNA (tRNA)
• messenger RNA (mRNA)

C.Production of proteins would stop.What is one direct effect of inhibiting translation?

Select one:

• DNA would no longer be replicated.
• The level of proteins would remain the same.
• Production of proteins would stop.
• Transcription would cease.

How many amino acids, and which ones, would be

encoded by the following mRNA sequence: 5'-

AUGACUCCCGGG-3'? (The codon table below can assist you.)

• Three amino acids - Met, Ile, and Arg
• Four amino acids - Met, Leu, Pro, Val
• Four amino acids - Met, Thr, Pro and Gly
• Three amino acids - Met, Thr, and Proc.
• Four amino acids - Met, Thr, Pro and Gly Amino acids are coded by 3-letter

codons, and the sequence contains 12 nucleotides, which means is codes for four amino acids. The first is AUG for Met, the second is ACU for Thr, the third is CCC for Pro, and the fourth is GGG for Gly.

• Promoters Promoters are DNA sequences near the

start of a gene that are recognized by transcription factors which recruit RNA polymerase to that gene for expression. This is an important aspect of transcription, but is not part of mRNA processing. 5' cap addition is an important mRNA processing step that occurs soon after transcription of the mRNA begins, and poly(A) addition is a processing step that occurs soon after transcription of the mRNA ends. The final step of mRNA processing is splicing - removing introns and connecting the exons of a gene - prior to the exit of mRNA from the nucleus for translation.Which of the following is NOT part of mRNA processing prior to translation?

Select one:

• 5' cap addition
• Splicing
• Poly(A) tail addition
• Promoters