5 Questions
What is physiology the study of?
Biological function
What is the emphasis of physiology?
Mechanisms
Where does exchange of substances occur in multicellular organisms?
Across the cells’ plasma membranes
How do single-celled protists exchange materials with their surroundings?
Through the plasma membrane
What facilitates the diffusion of materials in sac-bodied organisms like jellyfish?
Body walls that are only two cells thick
Study Notes
Physiology
- Physiology is the study of the functions and processes that occur within living organisms.
Exchange of Substances
- In multicellular organisms, the exchange of substances occurs through specific cells, tissues, or organs that are adapted for this purpose.
Single-Celled Protists
- Single-celled protists exchange materials with their surroundings directly across their cell membrane.
Sac-Bodied Organisms
- In sac-bodied organisms like jellyfish, the diffusion of materials is facilitated by the large surface area of their gastrovascular cavity.
Test your knowledge of animal physiology with this quiz on the general principles of biological function. Topics covered include molecular mechanisms, tissue and organ actions, and overall organism function. Perfect for students studying biology or anyone interested in understanding how animals work on a physiological level.
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