Deoxyribose Study guides, Revision notes & Summaries
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AC-HPAT Prep test exam questions and answers 2023
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Most of the cell membrane's specific functions are controlled by: - Proteins 
 
Alcoholic Fermentation is a form of: - Anaerobic Respiration 
 
Phagocytosis is a form of: - Endocytosis 
 
What is a pyruvate? - Pyruvate is an important chemical compound in biochemistry. It is the output of the metabolism of glucose known as glycolysis. One molecule of glucose breaks down into two molecules of pyruvate, which are then used to provide further energy, in one of two ways. 
 
What are the small spheri...
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Edexcel A Level Biology Paper 1 Mark Scheme June 2023 (Salters Nuffield)
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uestion 
Number 
Answer Mark 
1(a) The only correct answer is C a place where an organism lives 
A is incorrect because a group of organisms of different species living in the same area is a 
community 
B is incorrect because a group of organisms of the same species living in the same area is a 
population 
D is incorrect because the role of an organism is its niche 
(1) 
Question 
Number 
Answer Additional guidance Mark 
1(b)(i) A description that makes reference to three of the following 
• ...
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BIOD 101 Module 4 Exam Portage learning
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Module 4 Exam - 
Requires Respondus 
LockDown Browser + 
Webcam 
● Due No due date 
● Points 100 
● Questions 25 
● Time Limit 60 Minutes 
● Requires Respondus LockDown Browser 
Question 1 
4 / 4 pts 
Fill-in-the-Blank: A nitrogenous base plus a deoxyribose is called a ________, and a 
base plus deoxyribose plus a phosphate group is called a _________. 
Answer: nucleoside, nucleotide (See section 4.1 in module). 
Question 2 
4 / 4 pts 
Describe the function of the checkpoints in the ce...
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BSC 108 Exam 3 Kennedy Questions and Answers Solved 100% Correct!!
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The structure of a strand of DNA. - Answer-it is a double helix, like a twisted ladder. 
the ladder rings are nucleotide subunits and they have a covalent bond to the sugar phosphate 
backbone (made of deoxyribose and a phosphate group) 
What are the nucleotide subunits? - Answer-adenine, guanine, cytosine, and thymine 
How are the subunits held together? - Answer-through a hydrogen bond 
What are the nucleotide subunits compliments? - Answer-Adenine and thymine 
cytosine and guanine 
How does D...
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CPPS 403 Pre-Midterm exam 2023 with 100% correct answers
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Central Dogma - correct answerDNA-(Transcription) - RNA- (Translation) -Protein 
 
DNA Structure - correct answer1. Deoxyribose: 5 Carbon atoms are numbered 1' to 5' . Hydrogen attached to 2'. Sugar 
2. Phosphate group 
Sugar-Phosphate backbone is asymmetric because PO4 groups connect the C5' of a sugar with the C3' of neighbouring sugar. = Asymmetric ends because the C5' end is attached to a PO4 and the C3' end is simply a hydroxyl group of the sugar. 
3. Nucleic Acid: No-covalently bon...
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Edexcel a level biology paper 2 mark scheme june 2023 salters nuffield
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Question 
Number Answer Mark 
1 (a)(i) The only correct answer is C metaphase 
A is incorrect as centromeres and spindle fibred do not join in anaphase 
B is incorrect as centromeres and spindle fibres do not join in interphase 
D is incorrect as centromeres and spindle fibres do not join in telophase 
[1] 
Question 
Number Answer Mark 
1 (a)(ii) The only correct answer is C prophase 
A is incorrect as the nuclear envelope does not start to break down in interphase 
B is incorrect as the nuclear...
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Biology 1001 LSU Hrincevich Exam 3 Questions With 100% Correct Answers.
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Growth factors stimulate what? 
(A) cyclin production. 
(B) the cell to skip the S and G1 phases of interphase and undergo mitosis directly. 
(C) Cdk's to synthesize enzymes that digest cyclins. 
(D) the cell to ignore the checkpoints of the cell cycle. 
(E) NONE OF THE ABOVE - Answer (A) cyclin production 
What is a major difference between mitosis and meiosis? 
(A) Meiosis produces two daughter cells instead of the four daughter cells produced in mitosis. 
(B) Meiosis produces genetically ide...
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Edexcel a level biology question paper 2 june 2023 salters Nuffield + mark scheme
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Mark Scheme (Results) 
Summer 2023 
Pearson Edexcel GCE 
In Biology A (9BN0 02) 
Paper 2: Energy, Exercise and CoordinationEdexcel and BTEC Qualifications 
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We provide a wide 
range of qualifications including academic, vocational, occupational and specific programmes for employers. For 
further information visit our qualifications websites at or . Alternatively, you 
can get in touch with us using the deta...
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CSU LIFE 102 FINAL EXAM QUESTIONS & ANSWERS SOLVED 100% CORRECT!
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Phosphorus has an atomic number of 15. This tells us that... - Answer-there must be 15 protons 
True or False: covalent bonds are stronger than ionic and hydrogen bonds because atoms that are joined 
with covalent bonds share electrons - Answer-True 
An e- in a hydrogen atom exists in the first valence shell. The valence e- of Aluminum exist in the 3rd 
shell. Which valence shell e- have higher potential energy and why? - Answer-the valence e- of 
aluminum, bc higher e- shells have higher energy...
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WGU Biochemistry OA (Latest 2022/2023) Verified Answers
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WGU Biochemistry OA (Latest 2022/2023) Verified Answers 
Bohr Effect chart (low pH) 
C- High CO2 
H- High H+ 
A- Acidic 
R-Release of O2(rt. Shift) 
T- tense state (in tissues) 
 
 
Primary structure 
Sequence of amino acids that make up a protein 
 
 
Secondary Structure 
Sequence of amino acids fold. 
 
 
Tertiary Structure 
-more folding in a 3D shape. 
-R groups (side chains) 
 
 
Quaternary Structure 
Protein has more than 1 polypeptide chain. 
 
 
Chemical reaction 
-absorb and release en...
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