Glossary of Biology Study Guide
Other Decks By This User
- In 1665 who used a microscope to examine pieces of cork and other plant structure?
- Robert Hooke
- In these plant cells what did Robert Hooke see and what did he name them?
- He saw tiny boxes and called them "cells"
- Who was the first to view living cells with a simple microscope?
- What did Leeuwenhoek call the living cells?
- Cell Theory was based upon much of the early research done by which two scientists?
- Leeuwenhoek and Hooke
- Can most cells be seen by the naked eye?
- No, most cells can only be seen by a microscope.
- Is the growth of a cell limited?
- Yes, because of surface area. (if volume is bigger than suface area, nutrients, oxygen, and other materials won't satisfy cell fast enough)
- Do cells come in all different shapes and sizes?
- Yes, they come in all different shapes and sizes which usually correlates to the function.
- Shape of Red Blood Cell.
- It is very small and squishy so that it can fit into thin veins.
- Shape of Nerve Cell.
- It has long "arms" b/c it needs to send messages quickly throughout the body.
- Shape of Muscle Cell.
- It is long so it can stretch and keep bones together.
- What are organelles?
- they are like miniature organ cells that perform specific functions.
- What is compartmentalization?
- It is how cells have different compartments
ex)like the different compartments in a backpack
- Two main categories of cells.
- they are prokaryotes and eukaryotes
- What are the characteristics of a prokaryotes?
- -don't have a nucleus
-don't contain membrane-bound organelles
- What are the characteristics of a eukaryotes?
- -have a nucleus
-have a lot of different types of organelles
-any cell that is not a bacteria
- What are the similarities of prokaryotes and eukaryotes?
- -both have ribosomes
- What does a cell membrane do?
- -acts as a barrier for cell
-lets only some material go through cell (is selectively permeable)
-its made up of phospholipids
- What do phospholipids have?
- they have hydrophilic heads and hydrophobic tails
- T or F
Many proteins are not embedded within the cell membrane for various reasons
- False; the proteins are embedded within the cell.
- What are peripheral proteins?
- they are proteins that lay close to the membrane but are not embedded within the membrane
- What are integral proteins?
- they are proteins that are enbedded within the membrane. they can move throught the membrane
- These proteins sometimes have a ___________ tail that serve as marker or name tag for other body cells to identify them.
- T or F
the proteins also serve as receptors for hormones or other chemical messengers.
- Many intergral proteins also function to ________molecules
across the cell membrane that cannot move across on their own.
- transport; they transport molecules such as water, oxygen, carbon dioxide, and lipids
- What are the three points to The Cell Theory?
- 1. All living things are composed of one or more cells
2. Cells are the basic unit of structure and function in an organism
3. All cells come from pre-existing cells
You must Login or Register to add cards