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Finish the sentence: When viewing cells through a microscope, the _____________________ is usually visible for eukaryotic and prokaryotic cells.
cell membrane
T/F: The cell theory applies to plants, animals, bacteria, rocks, and soil. Explain.
False; The cell theory only applies to LIVING organisms.
Where is the genetic information found for prokaryotic cells?
free-floating (in the cytoplasm in a region called the nucleoid)
Explain why humans have so many different types of cells.
specialized cells for specialized functions
What does it mean to say that the cell is the most "basic unit of life"?
If a cell was broken down into its parts, those parts would not be considered living on their own
What type of cells are pictured? How do you know?
eukaryotic cells (nucleus present)
What type of cell is pictured? How do you know?
bacteria (prokaryotic) cell--no nucleus; coccus/sphere shaped
Which structures are found in ALL cells?
cell membrane, cytoplasm, DNA, ribosomes
How many cells make up prokaryotic organims?
1
How many cells make up eukaryotic organisms?
many (multicellular)
What does the cell theory state?
1. all living things are made of cells 2. cells are the basic unit of life 3. cells come from other cells
Explain the structure of a phospholipid.
Hydrophilic head; 2 hydrophobic tails
Which major structures do plant cells have that animal cells lack?
chloroplasts, cell wall, central vacuole
What is the job of the cell membrane?
regulates/controls what goes in and out of the cell
Why are ribosomes important for the cell?
They are the site for protein synthesis.
What is the purpose of carbohydrates found in/on the plasma membrane?
structural support/ cell signaling and recognition
What is the purpose of proteins embedded in the cell membrane?
transport, communication, signaling, connecting cells, etc.
What is the main macromolecule that makes up the cell membrane?
lipids (phospholipid bilayer)
Which types of cells contain nucleic acids?
ALL CELLS!
What is the main function for nucleic acids in a cell?
provide information/instructions for making an organism (and proteins)
What are orgelles?
specialized structures found in eukaryotic cells that allow for specific functions
What is a nucleus? Which colored structure is it in the image?
organelle that controls protects a cell's DNA- red
Give an example for organisms that are made of eukaryotic cells.
animal, plant, fungi, protist
Give an example for organisms that are made of prokaryotic cells.
bacteria
What are the two main types of cells?
prokaryotic, eukaryotic