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6. What are pathogens?
- microorganisms being trapped in the mucus and causing illnesses
- microorganisms which remove mucus from the lungs
7. How is surface area to volume ratio calculated?
- by calculating the volume
- by dividing an organism's total surface area by its volume
- by adding the total surface area to volume
- by calculating the total surface area
8. A CFTR channel is non functional or absent , in a person which has CF.
9. What are the structures of protein making?
- alpha helix, beta pleated sheets
- Primary structure,secondary structure, tertiary structure,quaternary structure
- primary stimulus, secondary stimulus, tertiary stimulus and quaternary stimulus
- conjugated
10. What are epithelial cells?
- one or more layers of cells sitting in a basement membrane, made of protein fibres.
- parts of lungs
- cells made from helium
- hair-like structures
11. How are large molecules or particles transported across cell surface membranes?
- by diffusion
- by osmosis
- by exocytosis and endocytosis
- by active transport
12. Which transport across a membrane needs energy and moves up a concentration gradient?
- Diffusion
- Active transport
- Osmosis
