Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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

Chapter 2

Part 2 of Chapter 2

steroids large lipid molecules composed of 4 connected rings of carbon atoms (ex: cholesterol)
cholesterol best-known steroid
phospholipids consists of a glycerol & 2 fatty acids linked to a nonpolar group (ex: lechithin)
fatty acids lauric acid
fats monoglycerides, diglycerides, triglycerides
proteins most abundant organic component of the human body
support structural proteins create a three-dimensional framework for the body, providing strength, organization, and support for cells, tissues, and organs
movement contractile proteins are responsible for muscular contraction; related proteins are responsible for the movement of individual cells
transport insoluble lipids, respiratory gases, minerals such as iron, and several hormones are carried in the blood attached to transport proteins; other specialized proteins transport minerals between different parts of a cell
buffering proteins provide a buffering action, helping to prevent potentially dangerous changes in pH in cells and tissues
metabolic regulation enzymes speed up chemical reactions in living cells; the sensitivity of enzymes to environmental factors is extremely important in controlling the pace ad direction of metabolic operations
coordination & control protein hormones can influence the metabolic activities of every cell in the body or affect the function of specific organs or organ systems
defense the tough, waterproof proteins of the skin, hair, and nails protect the body from environmental hazards; proteins known as antibodies protect us from disease, and special clotting proteins restrict bleeding following an injury to the cardiovascular system
enzyme function The reactants in an enzymatic reaction (substrates) interact to form a specific product. Before an enzyme can function as a catalyst, the substrates must bind to a special region of the enzyme (active site).
nucleic acids large organic molecules composed of carbon, hydrogen, oxygen, nitrogen, and phosphorus; store & process information at the molecular level inside cells (ex: DNA & RNA)
deoxyribonucleic acid (DNA) determines our inherited characteristics (eye color, hair color, blood type); builds proteins; controls the shape & physical characteristics of our bodies (adenine, guanine, cytosine, & thymine)
ribonucleic acid (RNA) cooperate to manufacture specific proteins using information provided by DNA (adenine, guanine, cytosine, & uracil)
Created by: JTBanks



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