CH4 Flashcards
Smaller organism = (larger/smaller) surface area to volume ratio
Larger
Would an adult or infant lose heat quicker?
An infant would lose heat faster due to it having a larger surface area to volume ratio
Folding allows the body to_______
maintain localized control of different areas (via FOLDING) without having to go through the whole body
Four advantages of complex life
- Skeletal structures to protect
- Sensory organs
- Digestive organs for storing food
- Filtration systems
Elephants burn more _________ calories but shrews burn more ________
Total calories vs calories/unit
Why do shrews burn more calories/unit than elephants?
Because shrews lose heat faster so they are required to burn more energy to maintain heat
Why would a 5kg ectotherm burn less energy than a 5kg endotherm?
Because ectotherms do not need to burn energy to generate their own heat.
Torpor
Short term hibernation
What animals go into torpor?
Birds
chemical energy is converted into _______
ATP (Which we use for aerobic respiration and muscle contractions)
Four things animals need
- Chemical energy
- Organic Carbon
- Organic Nitrogen
- Essential Nutrients
How many amino acids do we need?
20
How many amino acids can animals naturally make?
12
How many amino acids can NOT be made and need to come from an animal’s diet?
8
Food is moved through the digestive tract by contractions known as
_________
peristalsis
What are the valves that regulate movement of products through the digestive tract called?
Sphincters
What organ is responsible for changing the environment for food in the small intestine to basic?
The pancreas
_______ is made in liver, stored in the __________ and is used to break down fats
Bile, Gallbladder
What is absorbed in the colon?
Water
What happens if the colon doesn’t absorb water?
Diarrhea, Dehydration
