Lecture 4 - Bioenergetics and Nutrients Flashcards
Why do animals eat?
- All physiological functions require energy and/or matter
- All animals are hetereotrophic
How much energy does an animal need?
Enough to maintain basic metabolic functions
- Maintain cellular activity, blood flow, respiration, temperature
The more active an animal is, the more energy it needs
What are needed for biosynthesis
Organic molecules
-Nucleic acid, carbohydrates, proteins, lipids
Bioenergetics
Overall flow and transformation of energy within an organism
Chemical Energy in food
Is used in cellular respiration to produce ATP or is stored
What could you measure to determine an animals energy use?
- heat production
- oxygen consumption
- CO2 production
- Food consumption/waste production
metabolic rate
Amount of animal used per unit
basal metabolic rate
The metabolic rate of a non-growing endotherm that is at rest, has an empty digestive tract and is not experiencing stress
-The minimum amount of energy to maintain basic functions
Essential Nitrients
Nutrients we need that we do not produce
- essential amino acid, essential fatty acids, vitamins, and minerals
