1. What is exocytosis?
- The process in which cells get rid of or burn excess energy
- When materials are transported out of the cell via secretory vesicles
- When materials are transported into the cell via secretory vesicles
- A complex form of cellular division in some cells.
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Other questions in this quiz
2. What is the name of the dark region within the nucleus?
- The nuclear sap
- The nucleolus
- The DNA
- The premature nuclei
3. What are lysosomes?
- External organelles that keep cells stationary
- Specialised forms of vesicles containing hydrolytic enzymes (digestive enzymes)
- Specialised digestive enzymes
- Vesicles that play a key role in protein synthesis
4. During transcription, why is information from DNA copied onto RNA?
- DNA cannot obtain enough energy to properly deliver information to the other organelles and so it passes info onto RNA, which can gain enough energy to transfer the info
- DNA is too large to leave the nucleus so its information is copied onto RNA which is small enough to leave through the nuclear pores
- RNA would be wasted if it wasn't used
- DNA is too important to leave the nucleus so RNA acts as a messenger delivering information to other organelles within the cell
5. Where are proteins synthesised?
- In the ribosomes that are found free floating in the cytoplasm
- In the cisternae of the golgi apparatus
- On the ribosomes bound to the endoplasmic reticulum
- Within the endoplasmic reticulim