Chapter 3 Flashcards
Semi-fluid portion of the cytoplasm
Cytosol
Control center
Nucleus
Intracellular structures with specific functions
Organelles
Responsible for forming the spindle during mitosis
Centrosome
Modifies, sorts, packages and delivered proteins and lipids
Golgi complex
Organelles that destroy bacteria and recycle worn out cell parts
Lysosomes
Non membranous chemical substances that are produced and used by cells
Inclusions
Located inside the nucleus and helps assemble ribosomes
Nucleolus
Cellular respiration occurs here
Mitochondria
Protein synthesis occurs here
Ribosomes
Passive transport depends on this type of energy to move materials
Kinetic
When a solution reaches equilibrium, an _____ number of molecules move in and out of a cell
Equal
Mechanisms that move substances across a cell membrane requiring energy
Active transport
The infolding of a cells membrane around a liquid droplet to bring it into the cell
Pinocytosis
In passive transport, net movement of substances is (up, down) their concentration gradient
Down
Movement of any substances from high concentration to low concentration wether or not a membrane is involved
Simple diffusion
Movement of a substance from a low concentration to a high concentration
Active transport
In exocytosis, these structures unite with the cell membrane and release their contents to the outside of the cell
Vesicles
Phagocytosis is process by which _______ are taken through a cell membrane
Insoluble solids
The word gradient means
Difference
The majority of the plasma membrane is composed of this type of molecule
Phospholipids
Cellular contents located between the plasma membrane and the nuclear membrane
Cytoplasm
Name the two types of ER
Rough, smooth
What structures are attached to the rough ER
Ribosomes
Functions in lipid (fatty acid production) and carbohydrates (release of glucose) metabolism
Smooth ER
The largest cell structure that contains both DNA and the nucleolus
Nucleus
Give examples of inclusions
Melanin
Glycogen
Fat
This part of the cytoplasm is composed of 75-90% water
Cytosol
Raises or lowers condenser
Condenser adjustment knob
Secures a slide for viewing
Slide holder
Lens, located beneath the stage opening which controls the light beam size
Condenser
Used for preliminary focusing
Coarse adj knob
Platform on which slides are placed
Stage
Used for final focusing
Fine adjustment knob
The part of the microscope used when we carry it
Arm
Controls the intensity of light
Iris
Term that is given to a microscopes ability to distinguish and separate fine detail
Resolving power
The objectives that comes closest to a specimen and is most likely to break a slide
Oil immersion (100x)
How do you find total magnification
Multiply the ocular and the objective
When you are viewing an object under low power, do you see more or less of the object as compared to high power
more
What property of the microscope allows you to change from one objective to another without having to make major focusing adjustment
parfocal
Red blood cells may swell and rupture if placed in a ____ solution
hypotonic
Hyper tonic means that a solution has more ____ as compared to another solution
solute
The movement of a substance from high to low concentration through the plasma membrane with the help of a channel protein
facilitated diffusion
