AQA AS Biology 4

Welcome to your AQA AS Biology 4

1. Prokaryotic cells have a cell wall that contains ________.
2. Lysosomes are vesicles formed by the ______.
3. Cisternae is present in __________.
4. Choose the correct statement(s).

a) Animal cells are eukaryotic cells.
b) Vacuole is a fluid filled organelle.
c) Lysosomes are the digesters of prokaryotic cells.
d) Bacteria are living organisms.
5. Select the correct statement about viruses.
6. Select the incorrect sentence out of the following.
7. What is the function of rRNA?
8. The protective protein coat in a virus.
9. What is the function of tRNA in protein synthesis?
10. Select the incorrect statement from the following.
11. The microscope which uses electrons to provide a three-dimensional view of the surface of the object.
12. What is the measured size of a plant cell photograph if the actual size of the cell is 0.010 and the magnification is x1000?
13. What is the function of mRNA in protein synthesis?
14. If a specimen appeared 20mm in length under a microscope with a magnification of 1,000 times, what is the calculation of the actual length?
15. Which of the following organelles is the largest and the most easily observed with the light microscope?
16. What is the fluid-filled space that surrounds the cristae within a mitochondrion?
17. A plant cell in a photograph measures 25 mm across. If the actual size of the cell is 0.025 mm, what is the magnification in the photograph?
18. Which is not a virus among the following?
19. 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?
20. Choose the correct statement regarding plastids.
21. A similarity between transmission electron microscope and scanning electron microscope.
22. The site of lysosome formation.
23. Who coined the term 'Cell'?
24. The microscope which has one lens to magnify images using light.