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Cell structure
Leaving Cert Biology
| Question | Answer |
|---|---|
| What is the name given to an instrument that uses two lenses to magnify objects | Compound microscope |
| What do you call the part of microscope that you look through but also magnifies X10 | Eyepiece |
| What do you call the part of microscope that you use for rough focusing | Caorse adjustment |
| What do you call the part of microscope that you use for fine focus | Fine adjustment |
| What do you call the part of microscope that magnifies an image | Objective lens |
| What do you call the part of microscope that holds the slide | Stage |
| What do you call the part of microscope that supplies light to the object | Mirror or light source |
| What do you call a microscope that sends a beam of electrons through a thin section of a sample | Transmission Electron Microscope (TEM) |
| What do you call a microscope that uses a beam of electrons to provide a surface view of sample | Scanning Electron Microscope (SEM) |
| What do you call the fine detail of a cell that is provided using an electron microscope | Ultrastructure |
| What are membranes composed of? | Phospholipids and proteins |
| What is the term given to the structure of a membrane | Phospholipid bilayer or Fluid Mosaic Model |
| Membranes retain the contents of the cell and give ____________ | Support |
| Membranes control what enter and leave the cell, what is the term used to describe this | Selectively semi permeable |
| The nucleus is known as the ___________ centre of the nucleus | Control |
| What surrounds the nucleus | Nuclear membrane |
| What is present in the nuclear membrane | Nuclear pores |
| What do you call the centre part of a nucleus | Nucleolous |
| What is made in the nucleolus | Ribosomes and RNA |
| What do you call the fluid that fills the cells and in which all the organelles are suspended | Cytoplasm |
| What do you call the membrane encloses organelle that are the sites of respiration | Mitochondria |
| Why does the inner membrane of a mitochondria have many infoldings | Larger surface area therefore produces more energy |
| What do you call the membrane enclosed organelle in plants that allows photosynthesis | Chloroplasts |
| What do you call the green pigment that is present in chloroplasts | Chlorophyll |
| What do you call the organelles, small in animal cells and large in plant cells that contain a fluid called sap | Vacoules |
| The large vacuole in plants has two functions, its a food store and it also provides what to a plant | Strength |
| What do you call the outer layer of a plant cell | Cell wall |
| What is a cell wall made of | Cellulose |
| What is the function of the cell wall | Support and strength |
| What is the function of ribosomes | Make proteins |
| What type of cells DO NOT have a nucleus and membrane enclosed organelles | Prokaryotic cells |
| What type of cells DO have a nucleus and organelles, all of which are enclosed by a membrane | Eukaryotic cells |
| Where are proteins synthesised | Ribosomes |
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gcu biology
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