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

Digestive System

Nutrition and digestion

TermDefinition
Producers Autotrophs
Consumers (Heterotrophs) - Need to ingest organic molecules in preassembled form - Chemical energy in bonds of food molecules
Essential Nutrients - Molecules wh/ must be ingested in preassembled form (cannot be synthesized by organism) - Malnourishment: absence of 1 or more essential nutrients; protein deficiency
Essential Amino Acids 8 needed (for humans) able to synthesize other 12 (plants are an incomplete sources of essential aa)
Essential Fatty Acids "certain" unsaturated fatty acids; rare deficiency
Essential Vitamins 13 essential for humans WATER SOLUBLE - Vit. B: coenzymes - Vit. C: connective tissue, immune system FAT SOLUBLE - Vit. A: responsible for pigment in eye - Vit. D: calcium absorption by bone - Vit E: antioxidant Vit. K: aids in blood clotting
Olestra "fake fat" that cannot be digested
Essential Minerals Inorganic Ex. Iron - carries O2 in rbc and ETC Calcium - bone/nerve conducting Phosphorus - ATP/DNA/bone Sodium & Potassium - osmoregulation/nerve conduction Magnesium & Zinc - cofactors for enzymes
Dietary Categories 1. Herbivores - plants 2. Carnivores - meat 3. Omnivores - both
Diverse Adaptations/Ways of Eating 1. Suspension Feeders 2. Substrate Feeders 3. Fluid Feeders 4. Bulk Feeders
Suspension Feeders Eats food suspended in H2O ex. Baleen whales + sponges
Substrate Feeders Eat what they live on/in ex. caterpillars, earthworms
Fluid Feedres Eat nutrient rich fluid ex. mosquitos, leeches (parasites feeding of blood from host) hummingbirds, bees (nectar from flowers)
Bulk Feeders Eats large pieces of food ex. Pythons
4 Stages of Food Processing 1. Ingestion - feeding 2. Digestion - breakdown into small molecules (intracellularly) 3. Absorption - nutrients into cells of body 4. Elimination - rid of digestive waste from food
Gastrovascular Cavity "sac" w/ one opening mouth/anus food in + waste out ex. hydra, planarian + flatworm
Alimentary Canal
Created by: Jennybhnguyen
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