BSC2085 Exam 1 Unit 1 UPDATED ACTUAL Questions and
CORRECT Answers
What are the 6 levels of organization? Chemical, Cell, Tissue, Organ, Organ System, Organism
Chemical level Simplest level, contains building blocks called atoms that combine to form
molecules
What do molecules combine to form? Organelles
Cell level Made up of cells that vary in size and shape
True or False: Cells each carry out a set of unique tasks True
within the human body
Tissue level Several cells are combined to create tasks
What are the four basic types of tissue in humans? Epithelium, connective, muscle, nervous
Organ level At least two tissues combined to make an organ that performs a task
What is an example of organ made in the organ level? Brain, liver, stomach
Organ system level Several organs and tissues combined to form a system that performs a task
Organism level The sum of all structural levels working together. It is the human as a whole.
Which is the highest level of organization? Organism level
What do neurons do? Send signals to the brain
Which is the smallest level of organization? Chemical level
How many total systems are there in the body? 11
What is epithelial tissue? A sheet of cells that cover the body surface or line a body cavity.
What is connective tissue? Tissue that binds cells and organs together and provides protection, support and
integration for the body.
What is muscle tissue? Excitable tissue that responds to stimulation and contraction to provide
movement.
What is nervous tissue? Excitable tissue that provides nerve impulses that communicate throughout the
body.
, Where are connective tissue cells found? Bone, blood, cartilage
What are the 3 types of muscle cells? Skeletal, smooth, cardiac
Where are epithelial cells found? Blood vessels
What do epithelial cells do? Form protective barriers and layers for tubes and cavities in body
How are epithelial cells organized? Into multiple or single layers
What are the 11 organ systems? Integumentary, skeletal, muscular, lymphatic, respiratory, digestive, nervous,
endocrine, cardiovascular, urinary, reproductive
Main organs of Integumentary system Skin, hair, nails
Main functions of Integumentary system Protects deeper tissues from injury, houses sweat glands, oil glands, and site of
vitamin D synthesis
Main organs of Skeletal system Bones, joints
Main functions of Skeletal system Supports and protects organs, provides framework for muscles to move. Bones
also store minerals and create blood cells
Main organs of Muscular system Skeletal muscles
Main functions of Muscular system Maintains posture and locomotion, produces heat
Main organs of Lymphatic system Lymphatic vessels, lymph nodes
Main functions of Lymphatic system Houses wbc involved in immunity, disposes of debris, and returns leaked fluid
from blood vessels back into blood
Main organs of Respiratory system Nasal cavity, larynx, pharynx, trachea, lung
CORRECT Answers
What are the 6 levels of organization? Chemical, Cell, Tissue, Organ, Organ System, Organism
Chemical level Simplest level, contains building blocks called atoms that combine to form
molecules
What do molecules combine to form? Organelles
Cell level Made up of cells that vary in size and shape
True or False: Cells each carry out a set of unique tasks True
within the human body
Tissue level Several cells are combined to create tasks
What are the four basic types of tissue in humans? Epithelium, connective, muscle, nervous
Organ level At least two tissues combined to make an organ that performs a task
What is an example of organ made in the organ level? Brain, liver, stomach
Organ system level Several organs and tissues combined to form a system that performs a task
Organism level The sum of all structural levels working together. It is the human as a whole.
Which is the highest level of organization? Organism level
What do neurons do? Send signals to the brain
Which is the smallest level of organization? Chemical level
How many total systems are there in the body? 11
What is epithelial tissue? A sheet of cells that cover the body surface or line a body cavity.
What is connective tissue? Tissue that binds cells and organs together and provides protection, support and
integration for the body.
What is muscle tissue? Excitable tissue that responds to stimulation and contraction to provide
movement.
What is nervous tissue? Excitable tissue that provides nerve impulses that communicate throughout the
body.
, Where are connective tissue cells found? Bone, blood, cartilage
What are the 3 types of muscle cells? Skeletal, smooth, cardiac
Where are epithelial cells found? Blood vessels
What do epithelial cells do? Form protective barriers and layers for tubes and cavities in body
How are epithelial cells organized? Into multiple or single layers
What are the 11 organ systems? Integumentary, skeletal, muscular, lymphatic, respiratory, digestive, nervous,
endocrine, cardiovascular, urinary, reproductive
Main organs of Integumentary system Skin, hair, nails
Main functions of Integumentary system Protects deeper tissues from injury, houses sweat glands, oil glands, and site of
vitamin D synthesis
Main organs of Skeletal system Bones, joints
Main functions of Skeletal system Supports and protects organs, provides framework for muscles to move. Bones
also store minerals and create blood cells
Main organs of Muscular system Skeletal muscles
Main functions of Muscular system Maintains posture and locomotion, produces heat
Main organs of Lymphatic system Lymphatic vessels, lymph nodes
Main functions of Lymphatic system Houses wbc involved in immunity, disposes of debris, and returns leaked fluid
from blood vessels back into blood
Main organs of Respiratory system Nasal cavity, larynx, pharynx, trachea, lung
