General Exam 1 Content Flashcards
heterothermic
body temp changes based on surroundings
homeothermic
body temp stays the same
oviparous
lays eggs
viviparous
live birth, has a placenta
ovoviviparous
holds eggs internally while they hatch, then gives birth
6 basic nutrients
protein
fats
carbohydrates
vitamins
minerals
water
what are proteins made up of?
amino acids, 10-12 essential
function of fats
deliver fat-soluble vitamins
do fats or carbohydrates produce more energy?
fats
what is energy supplied by
fats, carbohydrates and proteins
digestive tract
mouth (salivary enzymes)
esophagus
stomach (acid, enzymes, storage)
small intestine (absorption)
pancreas
liver
gall bladder (bile production to break down fats)
large intestine (storage)
rectum (feces storage
*characteristics of amphibians
skin without scales
heterothermic
three chambered heart
fresh water and terrestrial
reproduction of amphibians
oviparous: lay eggs
*characteristics of reptiles
don’t go through metamorphosis
heterothermic
almost all have three-chambered heart
body covered with scales
air-breathing
terrestrial (secondarily aquatic)
reproduction of reptiles
mostly oviparous
some (snakes) give birth to live young (ovoviviparous)
eggs are able to incubate outside of water due to shell
internal fertilization
*6 infectious diseases
bacteria
viruses
protozoa
fungi
parasites
prions
*6 non infectious diseases
toxicities
nutritional deficiencies or excesses
metabolic disorders
inherited disorders
maladaptation
cancers
*bacteria
single celled organisms with simple cell structure
most numerous of all cellular organisms
location: everywhere
reproduction: asexual, split in half
bacterial infections can be treated with
antibiotics
*virus
smaller than bacteria
not a living organism, not cellular
no nutrition (like bacteria digests thing)
no reproduction
hijack host cells, makes those cells reproduce the virus
virus treatment
not susceptible to antibiotics
difficult to destroy virus without destroying host cell
treatment generally for patient well being
*protozoa
more complex than bacteria
reproduction: by budding, splitting, or spores
diseases in humans: toxoplasmosis, giardiasis
can be treated
few good, some in ruminants
*fungi
group of organisms with no green coloring matter. includes smuts, rusts, molds, mildews and yeast. multicellular
candidiasis (thrush), ringworm
*prions
protein particle that causes disease, not a living organism
diseases: chronic wasting disease, involves degradation of brain tissue
*antibodies
proteins produced by body in response to antigens (immunoglobulins), produced by B cells
attach to antigens and assist in their removal or destruction
antigen
something which is foreign to the body
antibodies formed against specific antigens
*immune response
body recognizes antigen
B-cells respond and begin producing antibodies
other non-specific cells are also involved
B-cells specific to that antigen continue to be produced