WorksheetsHomeostasis and Levels of Organization
Total questions: 14
Worksheet time: 7mins
An atom is...
the small parts that have different jobs in a cell
the smallest part of a substance that cannot be broken down chemically
a group of cells that are similar in structure and funtion
different types of tissues working together to perform a similar function
What is the most basic unit of LIFE?
Atom
Molecule
Tissue
Cell
Tissues are made of....
Blood
Cells
Organs
Organelles
Which term describes the systems in an organisms that maintain homeostasis?
Receptor Organ
Environmental Stimulus
Feedback Loop
Homeostasis
Which of the following is an example of positive feedback to indirectly maintain homeostasis?
the chemical reactions involved in blood clotting after a wound
blood vessels constrict and shivering in response to low body temperature
blood vessels dilate and sweating in response to high body temperature
coach compliments performance during practice
Homeostasis:
allows for wildly fluctuating internal environment due to lack of feedback regulation
is the maintenance of relatively stable internal environment and often incorporates a form of feedback regulation
is the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation
is impossible in vertebrates
Positive or Negative Feedback Loop?
When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding and form a blood clot. The hormone signals continue until the cut is closed.
Positive Feedback Loop
Negative Feedback Loop
Positive or Negative Feedback Loop?
You eat a donut for breakfast, and your pancreas releases insulin to lower the glucose levels in your blood
Positive Feedback Loop
Negative Feedback Loop
Positive or Negative Feedback Loop?
It is a beautiful 75 degree day in May. You have to run a mile during PE. Your body starts to sweat, your breathing rate increases, and your face is flushed because it is so HOT.
Positive Feedback Loop
Negative Feedback Loop
Correct order of organization from atom to organisms?
Organism - organ system - organ - tissue - cell - organelle - molecule - atom
Organism - organ system - tissue -cell - organ - organelle - molecule - atom
Atom - tissue - organelle - cell- molecule - organ - organ system - organism
Atom - molecule - organelle - cell- tissue - organ - organ system - organism
What are the major organs and function of the Circulatory system?
Heart, veins, arteries.
To move blood around the body for gas exchange
Brain, nerves, spinal cord
To respond to stimuli and regulate bodily functions
Skeletal muscles, ligaments, tendons
To move the body
Mouth, esophagus, stomach, intestines, salivary glands
To break down nutrients and provide energy.
What are the major organs and function of the nervous system?
Heart, veins, arteries.
To move blood around the body for gas exchange
Brain, nerves, spinal cord
To respond to stimuli and regulate bodily functions
Skeletal muscles, ligaments, tendons
To move the body
Mouth, esophagus, stomach, intestines, salivary glands
To break down nutrients and provide energy.
What are the major organs and function of the muscular system?
Heart, veins, arteries.
To move blood around the body for gas exchange
Brain, nerves, spinal cord
To respond to stimuli and regulate bodily functions
Skeletal muscles, ligaments, tendons
To move the body
Mouth, esophagus, stomach, intestines, salivary glands
To break down nutrients and provide energy.
What are the major organs and function of the digestive system?
Heart, veins, arteries.
To move blood around the body for gas exchange
Brain, nerves, spinal cord
To respond to stimuli and regulate bodily functions
Skeletal muscles, ligaments, tendons
To move the body
Mouth, esophagus, stomach, intestines, salivary glands
To break down nutrients and provide energy.
