BIO 1010 EXAM 1 - KELLEY
What is the order of biological organization - ANSWER1. atoms
2. molecules
3. cells
4. tissues
5. organ
6. organ systems
7. organism
8. population
9. community
10. ecosystem
11. biome
12. biosphere
________ is equal to _________ - ANSWERstructure, function
What is homeostasis? - ANSWERstill maintaining variables in a certain range, a dynamic equalibrium
What are some examples of factors that fluctuate and need balance? - ANSWERO2 levels
pH
Glucose
Temperature
,How does skin maintain homeostasis?
(hint 2 ways) - ANSWERHair maintains temperature
when hot sweat helps to cool the body
What is skin? - ANSWERSkin is the first protective layer of the body, it prevents pollutants and other
harmful agents from hurting other organs. It transmits sensory information.
What is a set point? - ANSWERThe optimal point
What is a sensor? - ANSWERA structure that senses a change of the external or internal environment
What is the control center? - ANSWERThe control mechanism that returns the changing factor to the set
point
What are the four main biomolecules? - ANSWERcarbohydrates, lipids, proteins, nucleic acids
How do monomers form polymers? - ANSWERThrough condensation or dehydration
How do polymers become monomers? - ANSWERThrough hydrolysis
What is a cell? - ANSWERThe smallest organization capable of all properties of life. They make
biomolecules, all organisms are made from cells.
What are the basic cell features? - ANSWERplasma membrane, cytosol, chromosomes, ribosomes
What are the two types of cells? - ANSWEReukaryotic and prokaryotic
, What are some features of eukaryotes? - ANSWERorganelles that are membrane bound
What are some features of prokaryotics? - ANSWERno organelles, usually bacteria
What are some advanced cell features? - ANSWERCytoskeletons, microtubules, intermediate filaments,
and microfilaments
What is extracellular space? - ANSWERThe watery environment outside of the cell
What are the three types of cell connections/junctions? - ANSWERtight junctions, desmosomes, and gap
junctions
What does a tight junction do? - ANSWERIt prevents paracellular movement, sealing cells together
What does a desmosome do? - ANSWERIt binds cells together, anchoring them
What do gap junctions do? - ANSWERThey provide a direct passageway for small molecules to travel
between cells.
What are the four types of tissues? - ANSWERepithelial, connective, muscular, nervous
What is epithelial tissue? - ANSWERStratified or simple cells that are usually a protective layer
What are the three shapes of epithelial tissue cells? - ANSWERcolumnar, cuboidal, squamous
What is the function of connective tissue? - ANSWERsupports, protects, binds other tissues together
What is the order of biological organization - ANSWER1. atoms
2. molecules
3. cells
4. tissues
5. organ
6. organ systems
7. organism
8. population
9. community
10. ecosystem
11. biome
12. biosphere
________ is equal to _________ - ANSWERstructure, function
What is homeostasis? - ANSWERstill maintaining variables in a certain range, a dynamic equalibrium
What are some examples of factors that fluctuate and need balance? - ANSWERO2 levels
pH
Glucose
Temperature
,How does skin maintain homeostasis?
(hint 2 ways) - ANSWERHair maintains temperature
when hot sweat helps to cool the body
What is skin? - ANSWERSkin is the first protective layer of the body, it prevents pollutants and other
harmful agents from hurting other organs. It transmits sensory information.
What is a set point? - ANSWERThe optimal point
What is a sensor? - ANSWERA structure that senses a change of the external or internal environment
What is the control center? - ANSWERThe control mechanism that returns the changing factor to the set
point
What are the four main biomolecules? - ANSWERcarbohydrates, lipids, proteins, nucleic acids
How do monomers form polymers? - ANSWERThrough condensation or dehydration
How do polymers become monomers? - ANSWERThrough hydrolysis
What is a cell? - ANSWERThe smallest organization capable of all properties of life. They make
biomolecules, all organisms are made from cells.
What are the basic cell features? - ANSWERplasma membrane, cytosol, chromosomes, ribosomes
What are the two types of cells? - ANSWEReukaryotic and prokaryotic
, What are some features of eukaryotes? - ANSWERorganelles that are membrane bound
What are some features of prokaryotics? - ANSWERno organelles, usually bacteria
What are some advanced cell features? - ANSWERCytoskeletons, microtubules, intermediate filaments,
and microfilaments
What is extracellular space? - ANSWERThe watery environment outside of the cell
What are the three types of cell connections/junctions? - ANSWERtight junctions, desmosomes, and gap
junctions
What does a tight junction do? - ANSWERIt prevents paracellular movement, sealing cells together
What does a desmosome do? - ANSWERIt binds cells together, anchoring them
What do gap junctions do? - ANSWERThey provide a direct passageway for small molecules to travel
between cells.
What are the four types of tissues? - ANSWERepithelial, connective, muscular, nervous
What is epithelial tissue? - ANSWERStratified or simple cells that are usually a protective layer
What are the three shapes of epithelial tissue cells? - ANSWERcolumnar, cuboidal, squamous
What is the function of connective tissue? - ANSWERsupports, protects, binds other tissues together
