Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
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 S+F of Cells, DNA, Proteins,Homeostasis, Immune Sy+Pathogens (R)

Parasite An organism that lives in or on another organism (host) Ex. Fleas, tick, lice , Etc..
Bacteria Damages your cells, reproduces asexually. Ex. Strep, ear infections. Etc...
Antibiotics Against living things
Fungus Spreads easily, reproduces asexually. Ex. Athletes foot, ring worm. Etc...
Virus Can only reproduce if they use your cells, cannot be killed by medicine or antibiotics
Antibody White blood cell can inactivate antigens, antibodies are Y shaped
Helper T-Cells Stimulates B-Cell to make antibody and gets killer T-Cells ready.
White Blood Cells Controls your body looking for pathogens or foreign invaders.
Function of the Immune System To keep your body safe from pathogens and maintain homeostasis
How allergies affect the immune system Causes and immune response to a harmless substance, creates swelling, itchy eyes, hives. Etc...
How Auto immune disorders affect the immune system Causes immune response to kill your own cells, also causes damage to your cell and they don't work properly
How HIV/Aids affect the immune system Causes a virus to attack your T-White Cells or immune system, then there is no defense system so the simplest pathogen can kill us.
The Villi Is part of the digestive system interacting with capillarities
The Alveoli Is part of the respiratory system interacting with capillaries of the circulatory system to put oxygen into and remove carbon dioxide from the blood
The Capillaries Is part of the circulatory system interacting with all cells and then with the kidney, skin, alveoli of the excretory system
Nervous and Endocrine system 2 systems that communication occurs the most
Location and Function of the villi Located in the small intestine digests nutrients, glucose, amino acids, are absorbed and diffused from the villi to the capillaries of the blood stream
Increase in villi = increase in the surface area =increase in absorption of the nutrients
Location and Function of the Alveoli Located in lungs, responsible for oxygen and Co2 exchange from the alveoli to the blood stream or capillaries.
Increase of aveoli = increase of surface area= maximum change of Co2
Function of the capillaries Pick up waste from our cells and deliver them to our excretory organs. Capillaries connects the cells, and it allows for exchange of nutrients, oxygen, and waste.
How neuron messages get from one neuron to the next The neurons line up to send messages throughout the body, then chemicals called neurotransmitters are released into the the synapse so the message can be sent. Chemical attach to the receptors based on shape and can then communicate their message.
How do the glands send messages to organs The endocrine system uses glands that make hormones that travel in the blood to match the receptors on the cells so the message can deliver
Nervous System Functions for sending messages Message is released by a neuron, uses neurotransmitters, message is sent through synapse, structure and shape is important, receptor receives messages.
Endocrine System Functions for sending messages Message is released by a gland, messages is in a form of a hormone, message is sent using the blood, structure and shape is important, receptor receives messages.
Examples of an organism maintaining homeostasis Sweating to cool down your body, the urge to urinate so you can remove waste from your body, blinking to regulate water in your eyes
Fear response Nervous System, neurotransmitter, adrenal gland, hormone or adrenal in the blood = lungs increased breathing or increased heart rate or liver releases glucose in the blood.
Levels of organization Atoms, elements, organelle, cells, tissues, organs, organ system
Difference between plant an animal cell Chloroplast and the cell wall is only found in plant cells
Nucleus Brain of the cell
Cell Membrane Controls what enters and exits the cell, communicates with other cells
Ribosome Makes protein through protein synthesis
Mitochondria Powerhouse of the cell, makes energy for the cell through cellular respiration
Cytoplasm Gel-like substance that fills the cells, chemical reactions occurs here
Vacuole Stores waste, water, and food for the cell
Chloroplast Makes food for the plant cells through photosynthesis
Cell Wall Protects the cells, gives the shape
8 Life processes of living organisms. Nutrition, Transport, Excretion, Cellular Respiration, Synthesis, Growth Development, Reproduction, Regulation
3 Life processes that MOVE materials into, through or out of the cell or organism Nutrition, transport, and excretion are the 3 life processes that involve the cell membrane.
4 Life processes that use ingested materials and create waste Cellular Respiration, Synthesis, Growth Development, Reproduction, Regulation are the 4 processes that involve the Nucleus expect cellular respiration
Nucleus Organelle Cell, nucleus, chromosome, DNA, gene
In the DNA C-G A-T G-C T-A
In the MRNA C-G and G-C but A replaces T and U replaces A
The directions of DNA for our traits 1 Gene DNA codes for 1 protein and based on it's shape it gives us 1 trait
MRNA is the copy or a different version of the DNA
Order of DNA and the traits of an organism DNA Based sequence, amino acids, protein shape, protein function, trait
Enzymes Speed up reactions build up and breakdown molecules
Created by: katie_7703
Popular Biology sets




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:
restart all cards