Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know (0)
Remaining cards (0)
Know (0)
0:00
share
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 28

Human Nutrition

QuestionAnswer
Autotroph Make their own food e.g Plants through Photosynthesis
Heterotroph Take in food from a live source e.g Parasites, Fleas
Ingestion The taking in of food into the digestive system
Digestion The physical and chemical breakdown of food
Absorption Occurs when digested food passes through the digestive system and enters the blood
Egestion The removal of unabsorbed waste from the digestive system
Dental Formula 2( I 2/2, C 1/1, P 2/2, M 3/3)
Oesophagus Carries food to stomach through peristalsis
Stomach Muscular bag that holds and digest food Coated by mucus Lining is folded forming millions of gastric glands Contains HCl (pH 1-2) to kill of bacteria
Pancreas Makes insulin to regulate the glucose level in the blood The pancreatic juices release sodium bicarbonate which neutralises chyme
Liver Detoxifies body from poisons such as alcohol or drugs Breaks down old/damaged red blood cells
Small Intestine Duodenum-Final part of digestion Ileum-Absorption
Enzymes Amylase-Starch-Maltose Lipase-Fats-1 Glycerol and 2 Fatty Acids Pepsin-Potein-Amino Acids
Large Intestine Caecum and Appendix - Vestigal Organs Absorbs water Colon produces symbiotic bacteria such as Vitamin B and K Rectum and Anus - Faeces waits to be ejested
2 functions for symbiotic bacteria 1) Obtains food from humans and in return produces useful vitamins such as Vitamin B and K 2)Prevents growth of disease-causing fungi
Why do humans need a balanced diet? It is needed to ensure that the body gets all the necessary energy and nutrients
Benefits of dietary fibre It's made up of cellulose from plant cell walls Absorbs and stores water Stimulates peristalsis
Created by: megan.mustafa
 

 



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