Body Systems
Which body system controls the body with chemical molecules called hormones?
Endocrine System
The left eye is _____ to the nose.
lateral
positive feedback
What 3 basic parts to human cells have?
plasma membrane, cytoplasm and a nucleus
Passive transport is described as "movement
__________ a concentration gradient.
down
Which body system is responsible for delivering oxygen and nutrients to the tissues via the bloodstream.
Cardiovascular System
proximal
The single most abundant chemical substance in the body is __________.
water
tight junction
Active Transport requires the energy molecule called
_____.
ATP
Which body system removes and filters excess fluid from tissues and aids in the immune system by producing white blood cells?
Lymphatic System
This direction mean towards the head.
cranial
2 or more cells bound together form ___________.
tissue
What is the function of a lysosome?
waste clean up and detoxifying
What is the purpose of endocytosis?
This body system controls fluid and electrolytes balances in the body.
Urinary System
The navel is ______ to the sternum.
inferior
Maintaining proper body temperature is an example of
__________ feedback.
negative
What is the name of the sugar covering at the cell surface which allows the immune system to recognize self?
glycocalyx
Describe pinocytosis:
"cell drinking" tasting liquids to bring them into the cell
This body system is responsible for the exchange of oxygen and carbon dioxide.
Respiratory System
A _________ section divides the body into equal right and left halves.
midsagittal
What is the main purpose of negative feedback?
to maintain homeostasis and return the body to its set point
A process where hormones or chemical messengers relay messages relay messages to the cell interior is known as ________ ________.
signal transduction
If a cell is selectively permeable, it means....
only certain substances are allowed into the cell