Save
Upgrade to remove ads
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

SACE 2: Organisms

Revision for Semester 2 Organisms test

QuestionAnswer
Provide three examples of stem cells. Embryonic Stem Cells (unlimited) Foetal Stem Cells Somatic (Adult) Stem Cells (limited)
With the exception of gametes, all of the cells in a Multi-cellular organism are the products of what kind of division? Mitotic Cell Division
What are the five main types of tissue? Muscle, Connective, Nerve and Epithelial.
What are the main types of Muscle tissue? Cardiac, Skeletal and Smooth.
What is the function of Cardiac muscle? To pump blood out of the heart and into the arteries.
What are the main types of Connective tissue? Bone, Blood and Adipose tissue.
What is the function of Adipose tissue? Padding and insulation of organs and storage of fat molecules.
What are the main types of Nerve tissue? Sensory neurons and Motor neurons.
What is the function of Sensory neurons? To transmit nerve impulses to the CNS.
What is the function of Motor neurons? To transmit nerve impulses originally from sensory neurons which sent the message to the CNS to an effector, which is a muscle or gland.
Describe Epithelial tissue. Tightly packed tissue which is organised into a layer called an epithelium for transport such as diffusion. Examples include Squamous epithelium and Columnar epithelium.
What is the definition of an organ? A collection of a range of tissues which perform a particular function.
What are some examples of organs, and what tissues are they composed of? Small Intestine: columnar epithelium and blood. Heart: Cardiac muscle and blood. Lungs: Squamous Epithelium, nervous tissue, connective tissue and smooth muscle. Kidneys: Epithelium, blood, connective tissue and smooth muscle.
List the organ systems that constitute the human body. Circulatory System, Immune and Lymphatic Systems, Excretory System, Respiratory (Ventilation) System, Digestive System, Nervous System, Hormonal (Endocrine) System, Reproductive System and the Skeletal and Muscular Systems.
What is a change in an organisms external environment known as? A stimulus.
What is the name of a response which reverses a stimulus? Negative Feedback.
What enables organisms to detect and respond to stimuli? Nerve Pathways.
What is the order of a stimulus-response pathway? Sensory receptors detect stimulus, stimulus is converted into nerve impulses which travel to the CNS via sensory neurons. Once there, the impulses are transmitted via motor neurons to the effector. The action of the effector results in a response.
Where are the main sensory receptors in the human body? Skin, Eyes, Ears, Tongue and Nose.
What are the main receptors in the skin? Mechanoreceptors, pain receptors and thermoreceptors.
What is the main receptor in the eyes? Photoreceptors.
What is the main type of receptor in the ears? Mechanoreceptors.
What is the main receptor in the tongue and nose? Chemoreceptors.
What do sensory receptors allow organisms to do? Homeostasis, to ensure that metabolic pathways proceed at an optimum rate and prevent damage to tissues and organs.
Describe Nervous Communication. Stimulis is detected by sensory receptors. Nerve impulses travel to the CNS via sensory neurons, then motor neurons to an effector which causes a response.
Describe Hormonal Communication. Stimuli detected by sensory receptors, endocrine gland cells secrete hormones into the plasma of the blood, hormones bing to the complementary membrane receptors. Relay proteins help an enzyme to activate which produces a response.
How is Nervous Communication different to Hormonal Communication? Nervous Communication is electrochemical. Hormonal is chemical-hormonal. Nervous is much faster, and is transmitted via neurons, as opposed to hormonal which travels via the bloodstream. (plasma)
Created by: willi19288
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