Cells Flashcards
(20 cards)
What are the two main types of organisms based on cell structure?
Prokaryotes and Eukaryotes
All living things are made of _______.
cells
What type of cells are complex and include all animal and plant cells?
Eukaryotic cells
What type of cells are smaller and simpler, such as bacteria?
Prokaryotic cells
What are the different parts of a cell called?
subcellular structures
Which subcellular structure contains genetic material that controls the activities of the cell?
Nucleus
Where do most of the chemical reactions happen in a cell?
Cytoplasm
What is the function of the cell membrane?
Holds the cell together and controls what goes in and out
Where do most reactions for aerobic respiration take place?
Mitochondria
What are the sites where proteins are made in the cell?
Ribosomes
Which structure supports and strengthens plant cells?
Rigid cell wall
What does the permanent vacuole in plant cells contain?
Cell sap, a weak solution of sugar and salts
Where does photosynthesis occur in plant cells?
Chloroplasts
What green substance in chloroplasts absorbs light needed for photosynthesis?
Chlorophyll
Do bacterial cells have a true nucleus?
No
What is a single circular strand of DNA in bacterial cells called?
DNA that floats freely in the cytoplasm
What are small rings of DNA that may be present in bacterial cells called?
Plasmids
What is the area formula for estimating the area of a subcellular structure?
Area = length × width
True or False: All plant cells have chloroplasts.
True
True or False: Eukaryotic cells are simpler than prokaryotic cells.
False
