Glossary of Cell Flash Cards
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- What is a cell wall?
- • Is a framework for the cell.
• Located outside cell membrane
• Secondary is made up of cellulose and lignin (woody stems)
• Pectin (glue) holds all cells together
- What is the chloroplast?
- • Tap light for photosynthesis
- What is the cell membrane?
- • Separates cell from surrounding, regulates what enters and leaves cell, protects and supports cell
• Lipid bylayer
• Surface protein
• Channel proteins
• Protein pumps
• Carbohydrates for ID (indentify) molecules (allow to pass through or not)
- What are the centrioles?
- • 2 bundles of microtubules
• Right angles to each other
• Are near the nucleus
• Used in cell division
- What is the cytoplasm?
- Jelly-like material, between nucleus and cell membrane, contains organelles
To hold organelles together, gives cell shape
- What is the Cytoskeleton?
- • Nucri tybykes’
o Support and shape
o Move organelles
o Form centriole and spindle
- What is the Endoplasmic Reticulum, smooth?
- • Transports materials
• Smooth ER stores enzymes and chemicals
- What it the Rough ER?
- • Transports materials
• Rough ER involved in protein synthesis
- What is the Golgi?
- • Made up of smooth ER
• Protein modifier
• Flattened membranes
• Collect, modify, package, distribute molecules
• Makes lysosomes
- What is the lysosome?
- up crew
• Contains chemicals and enzymes for digestion
• Made by Golgi body
- What is the mitochondria?
- • Provides power for cell,
• 2 layer membrane
• cellular respiration-produces energy
- What is the nucleolus? Where is it located?
- • Produces RNA and protein and ribosomes
In the nucleus
- What is the nucleus?
- • Hereditary information
• Eukaryotes have a nucleus
o Plant and animal cells
• Prokaryotes do not
- What is a ribosome?
- • “protein factory”
• Produces RNA and protein
• Floats in the membrane or free
• Produced in Nucleolus
- What is a vacuole?
- • Storage tank
• Fluid filled sac
• Store water (pinocytosis), food, minerals, salts
• Contractile vacuoles maintain water balance in paramecia
o When it is filled with water, it becomes pressurized (Turgor pressure), thus holding up the plant stem.
• Formed on the cell membrane
- What is chromatin?
- • Consists of DNA and protein
• Indistinct mass
• Condenses into chromosomes during cell division
- What is the nucleoplasm?
- • Jelly-like material inside nuclear membrane
• Has DNARNA through pores to tell cell
• Mostly water
- What is the nuclear membrane?
- • Envelope the nucleus
• Double layer
• Has pores
- What are organelles?
- • Basic unit of Life function
- Who was Robert Hooke and what did he do?
- • Came up with the word cellcork cell
- Who was van Leewenhoik? What did he do?
- • One of the first people to use a microscope to study nature
- Who was virchow? What did he do?
- He came up with the cell theory
o All living things are composed of cells
o Calls are the basic units of structures and function in living things
o New cells are produced from existing cells
- Wha was Scleiden? What did he do?
- All plants are made of cells
- Who was Schwann and what did he do?
- • Concluded that all animals were made of cells
- What is a prokaryote cell?
- An animal or plant cell that has multiple organelles
- What is a eukaryote cell?
- A bacteria or single-celled organism.
- What is movement in the cell carried out by?
- By the microfilaments and microtubules.
- What are microtubules and microfilaments?
- Microtubules-Hollow protein tubes
Support and shape
Form centriole & spindle
Form cilia & flagella
Microfilaments-Cell movement & support
In muscle cells, contract
- What are plastids?
- Leucoplasts store starch
Chromoplasts store pigment
Chloroplasts trap light for photosynthesis
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