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Zoology
Part I
42
Biology
Undergraduate 1
01/20/2010

Additional Biology Flashcards

 


 

Cards

Term
7 Taxa
Definition
Kingdom, phylum, chordata, order, family, genus, species
Term
The study of two-part names
Definition
Binomial Nomenclature
Term
Ecology
Definition
How organisms interact with their environment
Term
Prokaryotic Cells
Definition
No nuclei and not membrane bound (bacteria)
Term
Eukaryotic
Definition
Nuclei and membrane bound; organelles
Term
Why are cells small?
Definition
Volume increases faster than surface area; thus if it was bigger, the nuclei could not control the cytoplasm.
Term
Selectively Permeable Membrane
Definition
Lets only some substances in, and keeps others out.
Term
Homeostasis
Definition
The constant state of an internal environment
Term
Simple Diffusion
Definition
Goes from high concentration to low, and has a short distance transport
Term
Facilitated Diffusion
Definition
Goes from high concentration to low, and binds with a transport protein
Term

Osmosis

-isotonic

-hypertonic

-hypotonic

Definition

WATER from high concentration to low

-solute concentration is the same inside and out

-solute conc. is higher outside than in

-solute conc. is lower outside than in

Term
Filtration
Definition
Forces small molecules through the SPM with water pressure
Term
Active Transport
Definition
Lower concentration to high (ENERGY; OPPOSITE)
Term

Endocytosis

-pinocytosis

-phagocytosis

-exocytosis

Definition

BULK movement (not singular molecules)

-cell drinking

-cell eating

-expelling

Term
Cytoplasm and Cytosol
Definition
Fluid containing organelles; semi fluid that suspends system
Term
Ribosomes
Definition
Protein cells (not membrane bound)
Term
Endoplasmic Reticulum (smooth and Rough)
Definition

Rough: Ribosomes on the outside

Smooth: no Ribosomes

Term
Golgi Apparatus
Definition
Collection of membranes that sorts/packages/secretes protiens
Term
Lysosomes
Definition
Breaks down food for energy (phagocytosis)
Term
Mitochondria
Definition
Helps make energy for cells (powerhouse ) and muscles
Term
Cytoskeleton
Definition
Microtubules and filaments that give structure
Term
Cilia and Flagella
Definition

Flagella (sperm) are long cilia with tails that propel them

Cilia (digestive system, fallopian tubes, and esophagus) 

Term
Centrioles
Definition
2 sets of microtubules (at right angles to each other) near the nucleus; have a roll in cell division
Term

Nucleus

-chromatin

-nuclear pores

- nucleolus

Definition

Surrounded by nuclear membrane

-loose combo  of DNA chromosomes & protein

-holes in the nuclear envelope for DNA

-makes Ribosomes

Term

Epithelial tissues

-squamous

-cuboidal

-columnar

Definition

Surrounds outside (epidermis) and inside (stomach lining)

-flat (cheeks, epidermis) 

-cube shaped (lines tubules)

-column shaped (lines intestines)

Term

Tissue Layers

-simple

-stratified

-pseudostratified

Definition

-one layered (squamous)

-stratified (layered, skin)

-looks stratified but isn't (respiratory system)

Term

Connective Tissue

-Loose connective

-Adipose

-fibrous connective

-cartilage

-bone

-blood

Definition

-Scattered cells throughout fibers

-FAT; organelles pushed to the side

-densely packed fibers w/nuclei (muscles and tendons)

-nose, ears

-cells secrete calcium

-fluid (plasma) matrix w/ r/w b.c. cell fragments=platelets

Term

Muscle Tissue

-skeletol

-smooth

-cardiac

Definition

-voluntary; striated

-involuntary (around organs) nonstriated

-heart only both involuntary and voluntary, striated

Term

Nervous Tissue

-Dendrites

-cell body

-axon

Definition
dendrites lead to cell body, to axon
Term
Organs
Definition
The functional units of an animals body made of of more than one type of tissue
Term
Organ systems
Definition
integumentary, skeletal,  muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive.
Term
Gregor Mendel
Definition
Pea/monk guy who discovered gene stuff
Term
Alleles
Definition
alternate form of a particular gene (brown/blonde)
Term
Dominant
Definition
Allele that mask expression of another
Term
Recessive
Definition
Allele that can be masked by another
Term
Phenotype
Definition
Visual expression of a particular gene (brown/blue)
Term
genotype
Definition
genetic make up
Term
homozygous
Definition
2 of the same allele
Term
Heterozygous
Definition
2 different alleles
Term
monohybrid cross
Definition
crossing 2 different organisms, looking at 1 gene or trait
Term
Dihybrid cross
Definition
cross involving 2 traits (2 organisms)
Term
homologous
Definition
Of the same evolutionary origin (whale and human pelvic bone/bat wing and human arm)
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