Haemoglobin Study guides, Class notes & Summaries
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AQA AS Biology - Mass Transport 3.3.4 Questions & Answers 2024
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AQA AS Biology - Mass Transport 3.3.4 Questions & Answers 2024 
What is the structure of haemoglobin? - ANS-A quaternary structure with 4 polypeptide chains (2 alpha, 
2 beta) 
Each chain associated to a haem group containing an Fe2+ ion 
Each Fe2+ can carry one oxygen 
- hence Hb can carry a maximum of 4 oxygen 
What is the role of haemoglobin? - ANS-Transport oxygen around the body 
How does haemoglobin transport oxygen? - ANS-When ppO2 is high - at lungs - Hb has a high affinity for 
oxyge...
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OSMT Exam 2024 with 100% correct answers
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OSMT Exam 2024 with 100% correct answers 
Phagocytosis - correct answer Lysosomes are involved with: 
a. Energy release 
b. Active transport 
c. Mitosis 
d. Phagocytosis 
 
b. Is a screening test for blood donors - correct answer The specific gravity test for haemoglobin: 
a. Uses copper nitrate 
b. Is a screening test for blood donors 
c. Uses the principle that RBC's sink quickly if anaemia is suspected. 
 
d. All of the above - correct answer The plasma membrane is an animal cell is: 
...
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AQA A-Level Biology Paper 1 2023 Q&A
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Describe the role of a ribosome in the production of a polypeptide. /3 - Correct answer1. mRNA binds to ribosome; 
2. Idea of TWO codons/binding sites; 
3. tRNA with ANTICODONS binds; 
4. (Catalyses) formation of PEPTIDE bond between AMINO ACIDS (held by tRNA 
molecules); 
5. Moves along (mRNA to the next 
codon); 
Describe the structure of glycogen. /2 - Correct answer-1. Polysaccharide of α-glucose; 
OR 
polymer of α-glucose; 
2. (Joined by) glycosidic bonds 
OR 
Branched structure; 
NHE3 ac...
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OSMT Exam Prep ( Questions And Answers) Verified 100% Correct!!
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d. Phagocytosis - Lysosomes are involved with: 
a. Energy release 
b. Active transport 
c. Mitosis 
d. Phagocytosis 
b. Is a screening test for blood donors - The specific gravity test for haemoglobin: 
a. Uses copper nitrate 
b. Is a screening test for blood donors 
c. Uses the principle that RBC's sink quickly if anaemia is suspected. 
d. All of the above - The plasma membrane is an animal cell is: 
a. The cell membrane 
b. semi permeable 
c. selective 
d. All of the above 
e. None of the abo...
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OSMT 315 Exam Prep Questions & Answers | with 100% Correct Answers | Updated & Verified|81 Pages
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d. Phagocytosis - ️️Lysosomes are involved with: 
a. Energy release 
b. Active transport 
c. Mitosis 
d. Phagocytosis 
 
b. Is a screening test for blood donors - ️️The specific gravity test for haemoglobin: 
a. Uses copper nitrate 
b. Is a screening test for blood donors 
c. Uses the principle that RBC's sink quickly if anaemia is suspected. 
 
d. All of the above - ️️The plasma membrane is an animal cell is: 
a. The cell membrane 
b. semi permeable 
c. selective 
d. All of the abo...
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MLPAO EXAM PRACTICE QUESTIONS AND ANSWERS FULLY SOLVED
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MLPAO EXAM PRACTICE QUESTIONS AND ANSWERS FULLY SOLVED 
fluid portion of the cell outside the nucleus 
cytoplasm 
 
 
 
Red/Orange stain or dye 
Eosin 
 
 
 
 
Brainpower 
Read More 
Previous 
Play 
Next 
Rewind 10 seconds 
Move forward 10 seconds 
Unmute 
0:10 
/ 
0:15 
Full screen 
Chemical that prevents deterioration of cells or tissues 
Fixative 
 
 
 
Blue stain or dye 
Methylene blue 
 
 
 
The central structure of a cell which contains DNA and controls cell growth and function is called 
...
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AQA AS Biology Exam PAST PAPERS Frequent Questions and Answers
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AQA AS Biology Exam PAST 
PAPERS Frequent Questions 
and Answers 
Describe how change is chromosome number is Patau syndrome was produced (an 
extra chromosome on chromosome 13) (2) - ANSWER 1. In meiosis 
2. Sister chromatids do not seperate 
Explain why all the cells of the body will have this mutation (2) - ANSWER 1. All 
cells derived from a zygote by mitosis 
2. Mitosis produces genetically identical cells 
Suggest how the flow of some of the blood between the aorta and pulmonary artery...
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OSMT Exam Prep Questions & Answers(RATED A+)
- Exam (elaborations) • 47 pages • 2024
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d. Phagocytosis - ANSWER Lysosomes are involved with: 
a. Energy release 
b. Active transport 
c. Mitosis 
d. Phagocytosis 
 
b. Is a screening test for blood donors - ANSWER The specific gravity test for haemoglobin: 
a. Uses copper nitrate 
b. Is a screening test for blood donors 
c. Uses the principle that RBC's sink quickly if anaemia is suspected. 
 
d. All of the above - ANSWER The plasma membrane is an animal cell is: 
a. The cell membrane 
b. semi permeable 
c. selective 
d. All of the ...
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OSMT Exam Prep Questions and Answers(RATED A)
- Exam (elaborations) • 47 pages • 2024
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OSMT Exam Prep Questions and Answers(Rd. Phagocytosis - ANSWER Lysosomes are involved with: 
a. Energy release 
b. Active transport 
c. Mitosis 
d. Phagocytosis 
 
b. Is a screening test for blood donors - ANSWER The specific gravity test for haemoglobin: 
a. Uses copper nitrate 
b. Is a screening test for blood donors 
c. Uses the principle that RBC's sink quickly if anaemia is suspected. 
 
d. All of the above - ANSWER The plasma membrane is an animal cell is: 
a. The cell membrane 
b. semi p...
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OCR AS Biology molecules, biodiversity food and health 2013 (June) Questions with Correct Answers
- Exam (elaborations) • 7 pages • 2024
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1 a) amino acids form part of the structure of proteins. 
i) state the name given to the sequence of amino acids in a protein molecule [1] Correct Answer primary structure ; 
 
ii) draw the general structure of an amino acid molecule in the space below [3] Correct Answer NH2 at one end ; COOH at opposite end ; C in centre (of a single amino acid) bonded (separately) to one R and one H 
 
b) collagen is an important fibrous protein which forms part of the wall of blood vessels. 
i) state one prop...
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