Terms in this set (62)
Smaller structures inside the cell
Whatt do organelle's do?
Carry out specific functions in a cell
Where is the cell wall found?
In plant cells
What is the cell wall?
Rigid layer of nonliving material called cellulose
What does the cell wall do?
Helps and supports the cell
How does the cell wall help the cell?
Oxygen and water can pass through the cell wall easily
What are the parts of the plan cell wall structure?
Middle lamella, primary cell wall, plasma membrane, cellulose microfibrils, cross-linking glycan, & pectin
Where is the cytoskeleton found?
In many single cell organisms
What is the cytoskeleton made up of?
Made up of proteins
What doe the cytoskeleton do?
Gives the cells their shape
What are the parts of the cytoskeleton?
Plasma membrane, microfilaments, mitochondrion, intermediate filaments, endoplasmic reticulum, microtubule, & vesicle
In what type of cells would you find the cell membrane?
Plant and animal cells
What does the cell membrane do?
Regulates what substances enter and leave the cell
What is the cell membrane made up of?
Phospholipids and proteins
Is the cell membrane permeable?
What is the nucleus?
Brain of the cell
What does the nucleus do?
Controls all cell activies
What is the nuclear envelope?
It protects the nucleus. Materials pass in and out through pores.
What is the nucleus made up of?
Nuclear envelope, nuclear pores, chromatin, chromosomes, & nucleolus
Where is the nucleous located? What does it do?
In the center of the nucleus. Makes ribosomes
What does the mitochondria do?
Converts energy from food into usable energy
Where is the mitochondria found? What shape is it?
In the cytoplasm, rod shaped
What is a nickname for mitochondria based on what it does?
What are the components of the mitrochondria?
Outer membrane, inner membrane, mitrochondrial ribosomes, & mitrochondrial DNA
What is the endoplasmic reticulum (ER)?
Maze of passageways in the cytoplasm.
What are the two types of ER?
Smooth ER: No ribosomes
Rough ER: Ribosomes are present.
What does ER do?
Help in protein formation.
Carry material throughout the cell
What are the ribosomes? Where are they located?
Small, grain like bodies attached to the ER.
Some float in the cytoplasm.
What doe ribosomes do?
They produce proteins.
What happens to the proteins the ribosomes make?
Proteins are released from walls of ER and are carried to Golgi bodies.
What are the golgi bodies known as?
The cell's mailroom
What are teh golgi bodies?
Flattened, sac land tubes.
What doe the golgi bodies do?
They receive the proteins and other material from ER and distribute to other parts of the cell.
They also send material outside the cell.
What type of cell is chloroplast found in?
Plant cells only
What is the chloroplast?
Green organelles that contain chlorophyll a and b.
What does the chloroplast do?
Capture sun's energy and use it to produce food.
They make leaves appear green.
What type of cells have vacuoles?
Animal and plant cells.
What type of vacuoles does a plant cell have?
Plant cells have one large centrally placed vacuole.
What type of vacuole does an animal cell have?
Animals cells have many small vacuoles scattered in the cytoplasm.
What doe vacuoles do?
Storage cells of the cell.
They store food, water and waste products.
What are the lysosomes known as?
Clean up crew or recyclers.
What do lysosomes do?
Break down waste material; large food particles and old cell parts for reuse
What are lysosomes?
Small, round structures containing chemicals that break down waste material.
What is the cytoplasm & where is it located?
Gel like material that fills up the cell
What lives in the cytoplasm?
All cell organelles
Waht does the cytoplasm do?
It provides a medium for cell functions and reduces damage due to friction.
What is cilia?
Hair-like structures used by some cells to move themselves or other things.
What is flagella?
Long, thread-like appendages which provide some live single cells with the ability to move, motility.
What size and shape are cells?
Different in shapes and sizes depending on their function.
What unique part do nerve cells have?
Finger like projections for transmission of impulses.
What type of cell is an RBC?
Red blood cell
What do RBC's look like? Why?
They are flattened so they can travel through blood vessels.
What do RBC's do?
Carry oxygen throughout the body
What type of cells contain chloroplast?
What cells have lots of ribosomes? Why?
Liver cells because they produce lots of protein
Do all cells contain the same organelles? Why?
No, cells also contain certain organelles for special functions.
What does the prefix "endo" mean?
"In" or "within"
Within what part of the cell is the endoplasmic reticulum located?
Within the cytoplasm
How does cellulose help with the function of the cell wall?
In plants, the cell wall is made up of cellulose , though it is a tough material it allows many materials, like water & oxygen, to pass through easily.
What is the key function of the nucleus?
The cell's control center directing all of the cell's activities.
How does the nucleus know how to direct the cell?
Chromatin contains genetic material which are the instructions for directing the cells functions.
What is chromatin?
Thin strands floating in the nucleus
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