Welcome to your Edexcel AS Biology 2 1. Cristae are structures found in the __________. Mitochondria Golgi bodies Actin fiber RNA2. A similarity between transmission electron microscope and scanning electron microscope. Both can be used to view the insides of each organelle. Both produce a 3D visual image. Both can attain the same amount of magnification. Both are used to observe dead organisms.3. What is the function of mRNA in protein synthesis? Deciphers the codons. Transcripts the base sequence of DNA molecule and carries to the cytoplasm. Unwinds the DNA double helix. Associates with a set of proteins to form ribosomes.4. The microscope which has one lens to magnify images using light. Simple microscope Compound microscope Scanning electron microscope Electron microscope5. Choose the correct order of cell arrangement in complex multicellular organisms. Cells, tissues, organs, system Cells, tissues, systems, organs Organs, cells, systems, tissues Tissues, organs, cells, systems6. The site of lysosome formation. Mitochondria Ribosomes Golgi apparatus Smooth endoplasmic reticulum7. Which is not a virus among the following? HIV Bacteriophage Salmonella Influenza8. The site of chlorophyll. Stroma of the chloroplast Outer membrane of the chloroplast Thylakoids Inner membrane of the chloroplast9. Function of ribosomes. Controls the activities of the cell. Most chemical processes take place here. Protein synthesis Exchange of gaseous materials.10. The microscope which uses electrons to provide a three-dimensional view of the surface of the object. Simple microscope Compound microscope Scanning electron microscope Transmission electron microscope11. What is the fluid-filled space that surrounds the cristae within a mitochondrion? Grana Stroma Matrix Thylakoid12. Which of the following is a major difference between plant and animal cells? Plant cells have a cell wall. Plastids are absent in animal cells. Most plant cells do not contain cilia. Centrioles are present in all animal cells.13. Which is known as the universal energy carrier? Nucleus ADP DNA ATP14. Many prokaryotic cells do not have __________________. One or more flagella A capsule surrounding the cell One or more plasmids Microtubules15. What is the function of rRNA? Helps in the process called translation. Forms ribosomes which act as the site for protein synthesis. Helps in unwinding the DNA strands. Helps in the process called transcription.16. Choose the correct statement regarding plastids. There are 2 types of plastids. They are present in both plant and animall cells. Chloroplast is a type of plastid. Plastids are single membrane bound organelles.17. What are the organelles assisting in cell locomotion? Cilia and flagella Cilia and lysosomes Flagella and plasmids Cilia only18. Select the correct statement about viruses. They consist of only DNA. Viruses are living organisms. Viruses are non-living organisms. Viruses are multicellular organisms.19. Which of the following is not correctly paired? Chloroplast-photosynthesis Smooth endoplasmic reticulum-processing, packaging, secretion Rough endoplasmic reticulum-protein synthesis Nucleus-cellular reproduction20. 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? 0.4 0.04 0.004 0.000421. The site of chromosomes. Nucleus Cytoplasm Cell wall Ribosomes22. Which of the following has no membrane? ER Golgi bodies Nucleolus Nucleus23. Components of cytoskeleton. Microfilaments and ions Microtubules and microfilaments Microtubules and vescicles Microtubules only24. Which is not a function of golgi bodies? Packaging macromolecules for delivery to other organelles. Determining which proteins are to be transported outside the cell. Sorting and processing proteins. Intracellular digestion25. Network of tiny tubes within the cytoplasm. Cytosol Vacuole Cytoskeleton PlasmidsTime is Up!