the human cell
Terms
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- What type of cell is the smallest cell?
- red blood cell
- what type of cell is the largest cell?
- female ova
- cell shapes are....
- highly varied
- The smallest cell is x of a micrometer
- 7.5
- the smallest cell measures
- 7.5 micrometers or 1/1000 of a millimeter
- The cell is the
- smallest self sufficient thing
- scanning electron microscopes see in
- three dimension
- The Plasma or cytoplasmic memberane is
- the outer limit of the cell
- the membrane contains what type of heads and what kind of tails?
- hydrophylic heads ad hydrophobic tails
- center of the cell is called
- nucleus
- hydrophilic
- water friend
- hydrophobic
- no water
- the nucleous is covered by the
- nuclear membrane
- proteins in the plasma membrane do what?
- identify what needs to go in and what needs to out of the cell
- what holds the cell wall together?
- cholesterol
- cytoplasm is
- the living matter within cells
- organelles are
- the cells tiny organs
- protoplasm means
- before living matter
- The nucleus is
- the round body in the center of the cell enclosed by a nuclear membrane.
- The nuclear membrane contains
- DNA
- DNA contains
- chromatin threads or chromosomes
- The function of DNA dictates
- what proteins are made
- Ribosomes function is to
- produce protein
- Endoplasmic reticulum is
- the network inside the cell
- mitochondria are
- tiny sacs with convuluted walls and are the power plants for cells making ATP/energy
- The golgi apparatus are
- membranous vessicles near the cell wall that synthesize carbs and make all bodily secretions
- lysosomes are
- microscopic membranous sacs that serve as the cells digestive system
- centrioles function is to
- make spindle fibers
- cillia are
- hair like projections that move fluid around it
- flagellum are
- whip like projections off the cell and move the cell
- DNA is
- The blueprint for the cell
- RNA is
- A copy of the blueprint (DNA)
-
Stages of mitosis are:
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Interphase
Prophase
Metaphase
anaphase
telephase - During interphase the cell is
- living only
- During prophase
- Dna chromatin shorten, thicken and change to chromosomes
- We have how many chromosomes
- 23 pairs
- During prophase what moves to opposite poles of the cell?
- centrioles
- During prohase what dissolves?
- organelles and nuclear membrane
- a centromere holds how many chromosocmes together?
- 2
- The spindle fibers appear and pull chromosomes apart during what phase?
- prophase
- metaphase is when chromosomes
- center align
- anaphase is the stage when each centromere does what and begins to be pulled to opposite poles by what?
- divides, spindle fibers
- centrioles are located
- near the nucleus
- In telephase everything
- reverses and comes back together as a cell, returns to interphase, organelles reappear
- Fusion
- moving from a higher concentration to a lower concentration
- osmosis
- is diffusion of water thru a membrane
- filtration
- shoving water thu the membrane using pressure
- filtration, osmosis and fusion require no...
- energy
- active transport refers to
- the use of cellular energy to move materials into the cell
- phagocytosis is when
- large particls are invaginated nu the cell wall
- pinocytosis is when the cell membrane
- engulfs droplets of fluid
- the cell membrane is what, which means it regulates what can enter and leave the cell
- selectively permeable
- Ribosomes are
- microscopic spheres composed of RNA and Protein
- centrioles are located near where and are composed of what?
- the nucleus and are tiny cylinders composed of microtubules
- The endoplasmic reticulum is a network of
- canals that extend thru the cytoplasm
- The endoplasmic reticulum's function is to
- be the circulatory system of the cell