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final exam study guide
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36
Biology
Undergraduate 1
12/09/2014

Additional Biology Flashcards

 


 

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Term
Acoelomate
Definition
an animal that lacks a fluid filled body cavity
Term
Aerobe
Definition
an organism that requires oxygen to survive
Term
Akinetes
Definition
a thick-walled, food-filled cell produced by certain bacteria or protists that enables them to survive unfavorable conditions in a dormant state
Term
Alteration of Generations
Definition
occuring in plants and some protists, life cycle alternating between diploid(sporophytes) and haploids(gametophytes)
Term
Amnion
Definition
innermost of the 4 extraembryonic membranes in amniotic egg. protects it.
Term
Amoebocyte
Definition
a mobile cell within a sponge's mesophyl that absorbs food from choanocytes, digests it, then carries the nutrients to other cells
Term
Amoebae
Definition
a protist that moves by pseudopedia, which involves extending cytoplasm into filaments or lobes
Term
Anaerobe
Definition
process that occurs in the absence of oxygen(doesnt require it)
Term
Anagenesis
Definition
pattern of speciation in which a single species is transformed into different species over the course of many generations
Term
Apical Meristems
Definition
a group of actively dividing cells at the growing tip
Term
Autotroph
Definition
an organism that has metabolic pathways that use energy from either inorganic molecules or light to make organic molecules
Term
Bacilli
Definition
rod-shaped prokaryotic cells
Term
Bilatera
Definition
bilaterally symetric animals
Term
Binomial Nomenclature
Definition

the standard method of naming species

 

genus name and epithet

Term
Carpels
Definition
a flower shoot organ that produces ovules that contain femal gametophytes
Term
Cerebral Ganglia
Definition
a paired structure in the head of invertebrates that recieves input from sensory cells and controls motor output
Term
chitin
Definition
a tough, nitrogen-containing polysaccharide that forms the external skeletons of many insects and the cell walls of fungi
Term
Chondrichthyan
Definition
members of the class chondrichthyes, including sharks, skates, and rays
Term
Ciliate
Definition
protists that use many tiny hair-like surface extensions, known as cilia
Term
Clade
Definition
a group of species derived from a single common ancestor
Term
Cladogenesis
Definition
a pattern of speciation in shich a species is divided into 2 or more species
Term
Closed/open circulatory system
Definition
a system that transports necessary materials to all cells of an animal's body and transports waste products away from cells
Term
Cocci
Definition
sphere-shaped prokaryotic cells
Term
Coelomate
Definition
an animal with a true ceolom
Term

compare and contrast

 

Archaea with Bacteria/Eukarya

Definition

Same:

nucleus,

 

Different:

Term
Counter current exchange
Definition
2 fluids going back and forth to maximize transfer of oxygen
Term
Actin
Definition
cytoskeletal protein
Term
Action potential
Definition
an electrochemical signal along a cell's plasma membrane; occurs in animal neuron axons and muscle cells in some plant cells
Term
Active transport
Definition

the transport of a solute across a membrane against its gradient( from a region of low concentration to a region of high concentration)

 

requires input of energy

Term
Alimentary canal
Definition
the single elongated tube of a digestive system, with an opening at either end through which food and eventually wastes pass from one end to the other
Term
Hemocyanin
Definition
copper binds to oxygen, found in hemolymph
Term
Negative pressure breathing
Definition
as volume increases, pressure decreases and vice versa
Term
What are the molecular components of endoskeletons and exoskeletons
Definition

endo- hard internal structure

exo-hard encasement of exterior

Term
describe the 3 types of animal supportive structures covered in class
Definition
skeletons, muscles, and
Term
What is the bohr effect
Definition
effect of oxygen and hydrogen on hemoglobin- oxygen affinity
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