B3 Higher Recall Questions 1. Why do liver and musc le cells have lar ge numbers of mitochondria? 2. What is the func tion of ribosomes? 3. What is the shape of a DNA molecule? 4. o! do bases in DNA code for proteins? ". Why are en#ymes speci$c? %. Why does changing temperature a&ect en#yme action? '. o! do changes in genes alter proteins? (. What is the symbol e)uation for respiration? *. What is the function of A +,? 1-. Why does anaerobic respiration occur during eer cise? 11. What is meant by oygen debt? 12. What are the advantages of being multicellular? 13. What ar e th e use s of mit osi s and me iosi s in mammal s? 14. What are t he main s tages in mi tosi s? 1". o! does meiosis produce haploid cells? 1%. o! is a red blood cell adapted to its function? 1'. o! does haemoglobin transport oygen? 1(. What are the main parts of the mammalian heart? 1*. /plain t he main types of blood vessels are adapted for their functions? 2-. What are the simple di&er ences bet!een bacterial cells and plant and animal cells? 21. What are the advantages and disadvantages of di&erent gro!th measures? 22. What is the function of stem cells? 23. What is the di&erence bet!een ad ult a nd embryonic stem cells? 24. o! can selective breeding lead to inbreeding? 2". What are some of the conse)uences of inbreeding? 2%. What are the potential bene$ts and ris0s of genetic engineering? 2'. What are the main stages in genetic engineering? 2(. What are the possible uses of cloning? 2*. Describe the cloning techni)ue used to produce Dolly the sheep? 3-. What does nuclear tr ansfer mean? 31. Why is coning plants easier than cloning animals?
B3 Higher Recall Questions1. Why do liver and muscle cells have
large numbers of mitochondria?2. What is the function of
ribosomes?3. What is the shape of a DNA molecule?4. How do bases in
DNA code for proteins?5. Why are enzymes specific?6. Why does
changing temperature affect enzyme action?7. How do changes in
genes alter proteins?8. What is the symbol equation for
respiration?9. What is the function of ATP?10. Why does anaerobic
respiration occur during exercise?11. What is meant by oxygen
debt?12. What are the advantages of being multicellular?13. What
are the uses of mitosis and meiosis in mammals?14. What are the
main stages in mitosis?15. How does meiosis produce haploid
cells?16. How is a red blood cell adapted to its function?17. How
does haemoglobin transport oxygen?18. What are the main parts of
the mammalian heart?19. Explain the main types of blood vessels are
adapted for their functions?20. What are the simple differences
between bacterial cells and plant and animal cells?21. What are the
advantages and disadvantages of different growth measures?22. What
is the function of stem cells?23. What is the difference between
adult and embryonic stem cells?24. How can selective breeding lead
to inbreeding?25. What are some of the consequences of
inbreeding?26. What are the potential benefits and risks of genetic
engineering?27. What are the main stages in genetic engineering?28.
What are the possible uses of cloning?29. Describe the cloning
technique used to produce Dolly the sheep?30. What does nuclear
transfer mean?31. Why is coning plants easier than cloning
animals?
