Unit 1, Topic 1 - Cell Organelles Flashcards
What is the role of a lysosome?
The role of lysosomes is to digest substances such as cellular waste. They contain digestive enzymes that break down cellular waste and foreign particles.
What is the role of the nucleolus?
The role of the nucleolus is to produce ribosomes. It’s made of proteins and ribonucleic acid (RNA).
What organelle is described as being a network of flattened, interconnected membranes?
The endoplasmic reticulum is described as being a network of flattened, interconnected membranes. This is true for both rough and smooth ER.
What type of cells are chloroplasts found in?
Chloroplasts are found only in plant cells. This is because they capture light energy from the Sun and use it to power photosynthesis for energy production in plants
What do chloroplasts do?
Chloroplasts convert light energy into chemical energy, in the form of glucose. This is a process known as photosynthesis!
What is chemical respiration?
Chemical respiration is the the combination of oxygen with glucose to generate ATP.
In what type of cells are cell walls found?
This is a characteristic found in plant cells, fungal cells and some prokaryotic cells.
What is the cytoplasm?
The cytoplasm is a watery, clear fluid in which all of the organelles are found floating in and helps give the cell its shape.
Which organelle consists of microtubules, microfilaments and intermediate filaments?
The cytoskeleton consists of microtubules, intermediate filaments, and microfilaments which hold organelles in place and have a role in transport throughout the cell!
What are vacuoles?
Vacuoles are membrane-bound organelles found in plant and fungal cells, as well as some prokaryotic and animal cells.
What type of cell generally has the largest vacuoles, and why?
Vacuoles are generally the largest in plant cells too give the cell structural turgidity. This just means that they maintain the cell’s shape, which is swollen and distended.
What is a centrioles?
A centriole is a cylindrical organelle that is involved in organising cell division and are made of little microtubules wound up together
