BIOC 385 - SW 1 questions with
verified answers rated A+
PART 1: Alpha helix
Alpha helices are among the most common elements of secondary protein structure. In an
alpha helix, the trace of the peptide backbone rotates around an imaginary central rod in a
right-handed, helical manner.
PART 2: Lysine 63
Dihydrolipoamide, the reduced form of lipoamide, is covalently attached to Lysine 63.
PART 3: The lipoamide needs to be precisely located near the enzyme active site.
Glycine decarboxylase is a key enzyme in the catabolism of glycine. The catalytic mechanism
involves the transfer of a methylamine group by lipoamide between components of the enzyme
complex. Therefore, it is crucial for this cofactor to be located in proximity to the active site of
the enzyme, placing a high selective pressure to conserve lysine at this residue throughout
evolutionary history. - correct answer ✔✔Shown here is the pea glycine decarboxylase enzyme.
Manipulate this molecule according to the instructions below to answer the following
questions.
PART 1:
1. In the dropdown menu in the upper right corner of the viewer, select: View→Sequence View.
The sequence view will appear along the bottom of the viewer.
2. Highlight residues 28→36 in the sequence shown (TDHAQDHLG; this sequence is colored
red).
Now answer this question: Protein secondary structure is important to the function of proteins
and consists of three main types: alpha helix, beta strand, and beta turn. What type of protein
secondary structure is highlighted?
, PART 2:
Lipoamide is a covalently attached coenzyme that plays a key role in several decarboxylase
reactions, including glycine decarboxylase, and is attached to a lysine residue in the enzyme.
Review the molecule again. Manipulate it in order to identify the specific lysine residue that
serves
PART 1: They are able to use energy from sunlight to fix atmospheric CO2 in the form of
carbohydrates.
PART 2:
Most Likely - Plant trees, increase incentives to buy electric-powered vehicles, seed the oceans
with photosynthetic bacteria
Won't make a difference - Switch from buying genetically modified organism veggies to buying
organic
Will make things worse - Eliminating the use of wind power, eliminate all forms of mass
transportation (jets, trains, buses)
PART 3: We need to improve the efficiency of CO2 removal from the atmosphere within the
airtight habitat. - correct answer ✔✔The following questions will help you explore the factors
contributing to the rise in greenhouse gases that cause climate change and what role
photosynthetic organisms play in solving this global problem.
PART 1:
Photosynthetic organisms are essential to the efficient cycling of carbon on Earth. Which of the
following statements correctly describes their role in this process?
PART 2:
Since the early 1800s, the concentration of atmospheric carbon has increased from 200 parts
per million to more than 400 parts per million today. You are brainstorming with friends about
verified answers rated A+
PART 1: Alpha helix
Alpha helices are among the most common elements of secondary protein structure. In an
alpha helix, the trace of the peptide backbone rotates around an imaginary central rod in a
right-handed, helical manner.
PART 2: Lysine 63
Dihydrolipoamide, the reduced form of lipoamide, is covalently attached to Lysine 63.
PART 3: The lipoamide needs to be precisely located near the enzyme active site.
Glycine decarboxylase is a key enzyme in the catabolism of glycine. The catalytic mechanism
involves the transfer of a methylamine group by lipoamide between components of the enzyme
complex. Therefore, it is crucial for this cofactor to be located in proximity to the active site of
the enzyme, placing a high selective pressure to conserve lysine at this residue throughout
evolutionary history. - correct answer ✔✔Shown here is the pea glycine decarboxylase enzyme.
Manipulate this molecule according to the instructions below to answer the following
questions.
PART 1:
1. In the dropdown menu in the upper right corner of the viewer, select: View→Sequence View.
The sequence view will appear along the bottom of the viewer.
2. Highlight residues 28→36 in the sequence shown (TDHAQDHLG; this sequence is colored
red).
Now answer this question: Protein secondary structure is important to the function of proteins
and consists of three main types: alpha helix, beta strand, and beta turn. What type of protein
secondary structure is highlighted?
, PART 2:
Lipoamide is a covalently attached coenzyme that plays a key role in several decarboxylase
reactions, including glycine decarboxylase, and is attached to a lysine residue in the enzyme.
Review the molecule again. Manipulate it in order to identify the specific lysine residue that
serves
PART 1: They are able to use energy from sunlight to fix atmospheric CO2 in the form of
carbohydrates.
PART 2:
Most Likely - Plant trees, increase incentives to buy electric-powered vehicles, seed the oceans
with photosynthetic bacteria
Won't make a difference - Switch from buying genetically modified organism veggies to buying
organic
Will make things worse - Eliminating the use of wind power, eliminate all forms of mass
transportation (jets, trains, buses)
PART 3: We need to improve the efficiency of CO2 removal from the atmosphere within the
airtight habitat. - correct answer ✔✔The following questions will help you explore the factors
contributing to the rise in greenhouse gases that cause climate change and what role
photosynthetic organisms play in solving this global problem.
PART 1:
Photosynthetic organisms are essential to the efficient cycling of carbon on Earth. Which of the
following statements correctly describes their role in this process?
PART 2:
Since the early 1800s, the concentration of atmospheric carbon has increased from 200 parts
per million to more than 400 parts per million today. You are brainstorming with friends about
