Helix structures Study guides, Class notes & Summaries
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2024 AQA AS BIOLOGY 7401/1 Paper 1 Question Paper & Mark scheme (Merged) June 2023 VERIFIED / Biology AQA AS level 7401/1 Paper 1
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2024 AQA AS BIOLOGY 7401/1 
Paper 1 Question Paper & 
Mark scheme (Merged) June 
2023 VERIFIED / Biology AQA 
AS level 7401/1 Paper 1 
Describe the induced-fit model of enzyme action - ANSWER-- 
active site not complementary to/does not fit substrate 
- Shape of active site changes as enzyme- substrate complex forms 
- Distorting bonds (in substrate leading to reaction) 
• The human cell then makes a complementary strand to the HIV DNA. 
The complementary strand is made in the same way as a ne...
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BLG1501 Assignment 2 Semester 1 2024 (Solutions)
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BLG1501 Assignment 2 Semester 1 2024 (Solutions) 
 
Question 1 
Not yet answered 
Marked out of 2.00 
Flag question 
Question text 
Hydrolysis is reaction which occurs when 
Select one: 
a. 
a bond of a polymer is broken down through the addition of water molecule. 
b. 
two molecules are covalently bonded to each other through the loss of water. 
c. 
a double bond is formed between two atoms. 
d. 
a triple bond is formed between two atoms. 
Clear my choice 
Question 2 
Not yet answered 
Marked o...
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Biochemistry 4th Edition by Donald Voet – Test Bank
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E) cis 
F) trans 
G) sterically forbidden conformation 
H) regular secondary structure 
I) collagen 
J) peptide bond 
K) ribonuclease A (RNase A) 
L) alpha 
1. Repeating values of f and y make up predictable orientations of amino 
acid with a chain, this predictable orientation forms___________. 
Ans: H 
Level of Difficulty: Easy 
Section 6.1.B 
Learning objective: Secondary Structure 
2. The strength of _______ comes from close packing of glycine residues 
and the characteristics of hydroxyprol...
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Biochemistry 4th Edition by Donald Voet - Test Bank 100% COMPLETE QUESTIONS AND ANSWERS, study guide
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INSTANT DOWNLOAD WITH ANSWERS 
Biochemistry 4th Edition by Donald Voet – Test Bank 
Sample Test 
Chapter 6: Proteins: Three-Dimensional Structure 
Matching 
For questions 1-10: 
A) tertiary structure 
B) keratin 
C) molecular chaperones 
D) hydropathy 
E) cis 
F) trans 
G) sterically forbidden conformation 
H) regular secondary structure 
I) collagen 
J) peptide bond 
K) ribonuclease A (RNase A) 
L) alpha 
1. Repeating values of f and y make up predictable orientations of amino 
acid with a ch...
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PORTAGE LEARNING CHEM 210 exams 1-8 and final exam
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Portage Learning CHEM 210 exams 1-8 and final exam 
 
Question 1 
3 / 3 pts 
 
True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. 
 
 
 
True Correct! 
False Question 2 
3 / 3 pts 
True or False: Biomolecules can have only two functional groups. 
 
True Correct! 
False Question 3 
3 / 3 pts 
 
True or False: The following functional group is an alcohol. 
 
 
 
 
 
True Correct! 
False Question 4 
3 / 3 pts 
 
True or False: In ...
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Biochem Module 6 (Portage Learning), CHEM 210 Biochemistry Questions and Answers 100% Graded A+ Updated 2024
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Biochem Module 6 (Portage Learning), CHEM 210 Biochemistry Questions and Answers 100% Graded A+ Updated 2024 
 
In DNA, adenine always pairs with ________. 
 
- Thymine 
- Guanine 
- Uracil 
- Cytosine - CORRECT ANSWER-- Thymine 
 
DNA is built from which of the following? 
 
- Nucleosides 
- Genes 
- Purines 
- Nucleotide 
- Codons - CORRECT ANSWER-- Nucleotide 
 
The double helix of DNA is stabilized mainly by __________. 
 
- Ionic bonds 
- Covalent bonds 
- Ion-dipole bonds 
- Hydroge...
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Bio WGU study for OA c190 QUESTION AND CORRECT ANSWER Latest update 2023
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Adaptation- - correct answersThe adjustment or changes in behavior, physiology, and structure of an organism to become more suited to an environment. 
 
Aerobic- - correct answersA process that requires oxygen. 
 
Allele -An alternative form of a gene. An example would be genes that encode eye color—some encode blue eyes (one allele), while others encode brown, green, or hazel eye colors (other alleles). - correct answers 
 
amino acids - - correct answersA small organic molecule with the stru...
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TEST BANK for Seeley's Anatomy & Physiology 13th Edition by Cinnamon VanPutte, Jennifer Regan, Andrew Russo. All Chapters 1-29. (Complete Download) 1751 Pages
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Version 1 1 
CHAPTER 1 
1) Which technique creates a three-dimensional dynamic image of blood vessels? 
A) Digital subtraction angiography 
B) Magnetic resonance imaging 
C) Dynamic spatial reconstruction 
D) Positron emission tomography 
2) Magnetic resonance imaging is based on the movement of 
A) electrons in a magnetic field. 
B) carbons in a magnetic field. 
C) protons in a magnetic field. 
D) cells in a magnetic field. 
3) The delivery of a radioactive compound to the body to study the met...
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Test bank of tymoczkos biochemistry a short course 3rd edition All chapters
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Test bank of tymoczkos biochemistry a short course 3rd edition 
 
 
Chapter 1	Biochemistry and the Unity of Life 
 
 
Matching Questions 
Use the following to answer questions 1–10: 
 
Choose the correct answer from the list below. Not all of the answers will be used. 
a)	uracil 
b)	cytoplasm 
c)	protein 
d)	thymine 
e)	carbohydrate 
f)	sugar–phosphate units 
g)	cell wall 
h)	transcription 
i)	glycogen 
j)	lipid 
k)	central dogma 
l)	phagocytosis 
m)	endoplasmic reticulum 
n)	translation 
o)...
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Exam 1: BIOS 252 / BIOS252 (2024/ 2025 Update) Anatomy and Physiology II Exam Review| Guide with Questions and Verified Answers| 100% Correct| Rated A -Chamberlain
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Exam 1: BIOS 252 / BIOS252 (2024/ 2025 
Update) Anatomy and Physiology II Exam 
Review| Guide with Questions and Verified 
Answers| 100% Correct| Rated A -Chamberlain 
 
Q: Enzymes and their function 
-type of protein, chemical catalysts 
help chemical reaction occur 
 
 
 
Chamberlain 
Q: List and describe the chemical structure/components of DNA 
 
 
Answer: 
-Used as the cell's "master code" for assembling proteins 
-uses deoxyribose as sugar and A, T(not U), C, and G as bases 
-form...
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