CELLS & TISSUES Flashcards
4 CONCEPTS OF THE CELL THEORY
A. A cell is the basic structural and functional unit of living organisms.
B. The activity of an organism depends on the collective activities of its cells.
C. According to the principle of complementarity, the biochemical activities of cells are dictated by the relative number of their specific subcellular structures.
D. Continuity of life has a cellular basis.
According to the _____, the biochemical activities of cells are dictated by the relative number of their specific subcellular structures.
THE PRINCIPLE OF COMPLEMENTARITY
Is the basic structural and functional unit of living organisms.
A CELL
4 elements most cells are composed of
CARBON
HYDROGEN
OXYGEN
NITROGEN
The primary basic element of molecules
CARBON
Most important element
CARBON
Component of most organic molecules and influences body fluid
HYDROGEN
Most important genetic materials
NITROGEN
Major component in organic and inorganic molecules
OXYGEN
Anatomy of the Cell (3)
a. Cells are not all the same
b. All cells share general structures
c. All cells have three main regions (nucleus, cytoplasm, plasma membrane)
What are the 3 main regions of cell
NUCLEUS
CYTOPLASM
PLASMA MEMBRANE
It is the headquarter or control center of the cell
NUCLEUS
It is called the “blueprint”
NUCLEUS
It is where DNA located
NUCLEUS
TYPES OF CELL (7)
- Cells that connect body parts
- Cells that cover and line body organs
- Cells that move organs and body parts
- Cell that stores nutrients
- Cell that fights disease
- Cell that gathers information and controls body functions
- Cell of reproduction
Importance of red blood cells
TRANSPORT OXYGEN
during___ is the vital role of white blood cells
INFECTION
A cell that gathers information and controls body functions
NERVE CELLS
Reproduction cell of male
SPERM
Reproduction cell of female
OOCYTE
Sequence of body tissue
Cells when gathered together formed TISSUES, tissues when gathered together formed ORGANS, organs when gathered together formed SYSTEMS, systems when gathered together formed an ENTIRE HUMAN BEING
is collectively gathered and form particular tasks
CELLS
Groups of cells with similar structure and function
TISSUES
4 primary types of tissues
- Epithelial tissue (epithelium)
- Connective tissue
- Muscle tissue
- Nervous tissue
Where do epithelial tissues are located (3)
BODY COVERINGS
BODY LININGS
GLANDULAR TISSUE
Functions of epithelial tissues
PROTECTION (SKIN)
ABSORPTION (STOMACH)
FILTRATION (INTESTINES)
SECRETION (GLANDS)
Classification of Epithelia
a. Number of cell layers
b. Shape of cells
One layer of cells means?
SIMPLE
More than one layer of cells means?
STRATIFIED
Flattened shaped of cells means
SQUAMOUS
Cube-shaped of cells means
CUBOIDAL
Column-like shape of cells means
COLUMNAR
Single layer of flat cells
SIMPLE SQUAMOUS
location of simple squamous (usually forms membranes)
LINES OF BODY CAVITIES
LINES LUNGS AND CAPILLARIES
Functions of simple squamous
IN DIFFUSION, FILTRATION, OR SECRETION IN MEMBRANES
Single layer of cube-like cells
SIMPLE CUBOIDAL
Locations of simple cuboidal
COMMON IN GLANDS AND THEIR DUCTS
FORMS WALLS OF KIDNEY TUBULES
COVERS THE OVARIES
Functions of simple cuboidal
IN SECRETION AND ABSORPTION; CILIATED TYPES PROPEL MUCUS OR REPRODUCTIVE CELLS
hair-like structure that would line the epithelial cells
CILIA
Function of cilia in reproduction
PUSH THE EGG CELL TO TRAVEL
Function of cilia in digestion
PUSH THE FOOD FURTHER TO CONTINUE MOVING
Function of cilia in the respiratory
PUSH THE AIR FURTHER IN AND OUT OF THE LUNGS
aid in the movement of substances especially the hallow tubes in our body
CILIA
Single layer of tall cells
SIMPLE COLUMNAR
What does simple columnar often includes
MUCUS-PRODUCING GLOBET CELLS
Location of simple columnar
LINES DIGESTIVE TRACT
Functions of simple columnar
SECRETE HORMONES
ABSORBS NUTRIENTS
Single layer, but some cells are shorter than others
PSEUDOSTRATIFIED COLUMNAR