BIO 103 Midterm
Define the four topics covered in BI 103: anatomy, physiology, disease, and health. -
answer anatomy: bodily structure of humans, animals, and other living organisms,
especially as revealed by dissection and the separation of parts.
physiology: normal functions of living organisms and their parts
disease: a disorder of structure or function in a human
health: a person's mental or physical condition, the state of being free from illness or
injury.
Explain characteristics of science, including the importance of observation and avoiding
misconceptions. - answer scientists conduct RESEARCH of OBSERVABLE
phenomena.
Provide examples of how BI 103 topics relate to daily life. - answer consumer: health
and prevention, personal medicine
culture: global impacts, family and community
citizen: government and healthcare, medical research
Give examples of the biology of learning. - answer
List and describe the basic components of skin, including layers, tissues, and types of
cells. - answerEpithelial tissue: lines organs (outer skin and inner)
Connective tissue: structure of most organs
Muscle tissue: movement
Nervous tissue: communication
3 layers of skin:
Epidermis: epithelial, keratinocytes (produce keratin, go thru alot of mitosis, die flatten
then become waterproof and fall off), melanocytes (produce melanin, protects dermis
from UV)
, Dermis: connective, made up of fibroblast cells (which produce a lot of collagen), elastic
fibers act like rubber bands attaching to collagen, gel (providing hydration), sebaceous
oil gland secretes lipid-rich sebum,
Hypodermis: connective,
List and explain the basic functions of the integumentary system. - answerProtection,
gripping, vitamin d synthesis (dermis is pathway to vitamin d), temperature regulation,
sensation (free nerve ending = pain, light touch, heavy pressure, cold receptors, heat
receptors = sweating)
Provide the characteristics of a variety of skin disorders. - answer-Dermatitis: very
common
-Wound healing: clot, inflammation (blood cells come in and clean up the mess), mitosis
(new cells growing), differentiation.
-MRSA: methicillin resistant staph, wounds that dont heal, fever
-Skin cancer: UVB causes most cancer, UVA can cause cancer too (found in tanning
beds), decreased apoptosis (cells dont die as they should, accumulate, cause a tumor)
-Cellulite: fat (adopise) cells, 95% of women, occurs at puberty
-Acne: dirt and bacteria, increased sebum
-Scars: collagen fills in
-Tattoos: putting ink in the dermis, when scar tissue migrates down = fading
Describe impacts on integumentary system health. - answer
Describe basic cellular structures and functions, including the organelles and plasma
membrane. - answerOrganelles: organs of the cell, the inner structures that carry out
specific functions
Plasma Membrane: two layers of phospholipids, encloses contents of the cell and
regulates flow of substances in and out of the cell
Nucleus: brain or control center of cell, contains DNA and a nucleolus
Mitochondrion: powerhouse of the cell, where respiration produces ATP, an energy-rich
substance
Endoplasmic Reticulum: transports materials, site of attachment for ribosomes, builds
chains of amino acids
Define the four topics covered in BI 103: anatomy, physiology, disease, and health. -
answer anatomy: bodily structure of humans, animals, and other living organisms,
especially as revealed by dissection and the separation of parts.
physiology: normal functions of living organisms and their parts
disease: a disorder of structure or function in a human
health: a person's mental or physical condition, the state of being free from illness or
injury.
Explain characteristics of science, including the importance of observation and avoiding
misconceptions. - answer scientists conduct RESEARCH of OBSERVABLE
phenomena.
Provide examples of how BI 103 topics relate to daily life. - answer consumer: health
and prevention, personal medicine
culture: global impacts, family and community
citizen: government and healthcare, medical research
Give examples of the biology of learning. - answer
List and describe the basic components of skin, including layers, tissues, and types of
cells. - answerEpithelial tissue: lines organs (outer skin and inner)
Connective tissue: structure of most organs
Muscle tissue: movement
Nervous tissue: communication
3 layers of skin:
Epidermis: epithelial, keratinocytes (produce keratin, go thru alot of mitosis, die flatten
then become waterproof and fall off), melanocytes (produce melanin, protects dermis
from UV)
, Dermis: connective, made up of fibroblast cells (which produce a lot of collagen), elastic
fibers act like rubber bands attaching to collagen, gel (providing hydration), sebaceous
oil gland secretes lipid-rich sebum,
Hypodermis: connective,
List and explain the basic functions of the integumentary system. - answerProtection,
gripping, vitamin d synthesis (dermis is pathway to vitamin d), temperature regulation,
sensation (free nerve ending = pain, light touch, heavy pressure, cold receptors, heat
receptors = sweating)
Provide the characteristics of a variety of skin disorders. - answer-Dermatitis: very
common
-Wound healing: clot, inflammation (blood cells come in and clean up the mess), mitosis
(new cells growing), differentiation.
-MRSA: methicillin resistant staph, wounds that dont heal, fever
-Skin cancer: UVB causes most cancer, UVA can cause cancer too (found in tanning
beds), decreased apoptosis (cells dont die as they should, accumulate, cause a tumor)
-Cellulite: fat (adopise) cells, 95% of women, occurs at puberty
-Acne: dirt and bacteria, increased sebum
-Scars: collagen fills in
-Tattoos: putting ink in the dermis, when scar tissue migrates down = fading
Describe impacts on integumentary system health. - answer
Describe basic cellular structures and functions, including the organelles and plasma
membrane. - answerOrganelles: organs of the cell, the inner structures that carry out
specific functions
Plasma Membrane: two layers of phospholipids, encloses contents of the cell and
regulates flow of substances in and out of the cell
Nucleus: brain or control center of cell, contains DNA and a nucleolus
Mitochondrion: powerhouse of the cell, where respiration produces ATP, an energy-rich
substance
Endoplasmic Reticulum: transports materials, site of attachment for ribosomes, builds
chains of amino acids
