Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Biology Unit 1

Unit 1 - Homeostasis and Body Systems

QuestionAnswer
Homeostasis the ability to maintain a stable internal environment; NOT just body temp!
Urinary System helps regulate water content of the body; eliminates waste from the body
Integumentary System provides a protective barrier on the outside of the body via the skin
Nervous System controls conscious and subconscious activities of the body; brain/spinal cord/etc.
Skeletal System provides framework of the body; protects underlying organs; bones
Muscular System allows for movement of the body and provides heat; 3 types of muscle tissue
Endocrine System produces/distributes hormones responsible for growth and development; lots of organs and glands
Lymphatic System helps our body defend against infection; also called the immune system
Circulatory System delivers oxygen and nutrients to all cells of the body; picks up waste from blood and delivers to the proper system for removal from the body; helps maintain body temp
Respiratory System brings oxygen into the body; removes carbon dioxide from the body
Reproductive System produces the sex cells responsible for the creation of a new person
Digestive System breaks down food into absorbable units that are passed into the blood to be transported to the rest of the body
Stimulus something that changes the body's internal environment out of homeostasis
Receptor detects and compares the change caused by a stimulus to the set point and tells the effectors what to do to correct it
Response/Effector the action taken by the body to correct the change caused by a stimulus
Set Point/Range normal value of a body condition; Homeostasis
Negative Feedback Loop Cancels/Reduces/Lessens the effect of a stimulus and returns the body to homeostasis
Positive Feedback Loop Enhances/Increases the effect of a stimulus, creating more disorder in the body, before eventually returning to homeostasis
Diabetes Endocrine disorder that prevents the body's ability to regulate blood-glucose levels
Insulin a hormone that causes cells to absorb glucose, lowering the blood-glucose level; released when blood-glucose levels are too high
Glucagon a hormone that causes the liver to break down glycogen into glucose to be released into the blood stream, increasing the blood-glucose levels; released when blood-glucose levels are too low
Diffusion movement of molecules from an area of high concentration to an area of low concentration
Osmosis the movement of water from an area of low solute to an area of high solute; the diffusion of water
Solute substance dissolved in a liquid
Solvent liquid in which a solute is dissolved in
Passive Transport requires no energy; molecules move from high to low concentration
Active Transport requires energy; molecules move against the concentration gradient from low to high
Type I Diabetes genetic form of diabetes
Type II Diabetes developed form of diabetes; caused by poor diet, exercise, smoking, etc.
Examples of Positive Feedback blood clotting; childbirth
Examples of Negative Feedback body temperature; blood-glucose levels; osmoregulation
Simple Diffusion (Passive Transport) molecules pass directly through the membrane
Facilitated Diffusion (Passive Transport) movement of molecules across a membrane via transport proteins/channels without energy
Cell Basic unit of life; made of organelles
Tissue A group of similar cells that perform the same function.
Organ group of tissues that work together to perform closely related functions
Organ System group of organs that work together to perform a specific function
Organism A living thing; collection of all body systems; has all 8 characteristics of life
Number of Body Systems Humans Have 11
Created by: Keira Mei
Popular Biology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards