Edexcel AS Biology 2

Welcome to your Edexcel AS Biology 2

1. The nucleus in a photograph of a cell measures 2 mm across. If the magnification in the photograph is × 500, what is the actual size of the nucleus?
2. The site of chromosomes.
3. Select the correct statement about viruses.
4. What are the organelles assisting in cell locomotion?
5. Many prokaryotic cells do not have __________________.
6. Which is not a function of golgi bodies?
7. The microscope which has one lens to magnify images using light.
8. Components of cytoskeleton.
9. What is the function of rRNA?
10. Which of the following is a major difference between plant and animal cells?
11. Cristae are structures found in the __________.
12. A similarity between transmission electron microscope and scanning electron microscope.
13. Which of the following has no membrane?
14. Network of tiny tubes within the cytoplasm.
15. The site of chlorophyll.
16. The microscope which uses electrons to provide a three-dimensional view of the surface of the object.
17. Choose the correct statement regarding plastids.
18. The site of lysosome formation.
19. Which is known as the universal energy carrier?
20. What is the fluid-filled space that surrounds the cristae within a mitochondrion?
21. Choose the correct order of cell arrangement in complex multicellular organisms.
22. Which of the following is not correctly paired?
23. What is the function of mRNA in protein synthesis?
24. Which is not a virus among the following?
25. Function of ribosomes.