Organisms Flashcards
What is the function of the nucleus in a cell?
Controls cell activities
The nucleus is often referred to as the control center of the cell.
What is the primary function of the cytoplasm?
Site of chemical reactions
The cytoplasm contains various organelles and is where most cellular processes occur.
What is the role of the cell membrane?
Controls entry and exit of materials
The cell membrane is selectively permeable, regulating what enters and leaves the cell.
What is the function of ribosomes?
Site of protein synthesis
Ribosomes can be found free in the cytoplasm or attached to the endoplasmic reticulum.
What process occurs in mitochondria?
Site of aerobic respiration
Mitochondria are known as the powerhouse of the cell.
What is the purpose of a cell wall?
Provide structure and support to cell
Cell walls are present in plant, fungal, and bacterial cells, providing rigidity.
What does the vacuole contain?
Cell sap
The vacuole helps maintain turgor pressure in plant cells.
What is the site of photosynthesis in plant cells?
Chloroplast
Chloroplasts contain chlorophyll, which captures light energy.
What is a plasmid?
Ring of additional DNA found only in bacteria
Plasmids often carry genes that provide bacteria with genetic advantages.
Fill in the blank: The cell wall in plant cells is made of _______.
cellulose
Cellulose is a complex carbohydrate that provides structural support.
True or False: Animal cells contain cell walls.
False
Only plant, fungal, and bacterial cells have cell walls.
Which types of cells contain cell walls?
- Plant cells
- Fungal cells
- Bacterial cells
Each type of cell wall has a different composition.
