Haemoglobin Study guides, Class notes & Summaries

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...

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...

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: ...

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...

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...

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 ...

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...

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 ...

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...

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...