4. What issues do larger organisms face? Flashcards

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1
Q

Factors affecting rate of diffusion

A

Faster rate:
1. Increasing surface area
2. Decreasing the thickness of the diffusion surface
3. Maintaining a concentration gradient

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2
Q

Large sized body advantage in cold climates

A

Larger animals are better at retaining heat because it takes longer for heat to travel from their core to their extremities.

An animal with a small surface area to volume ratio is well adapted to cold environments as it will loose heat slowly

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3
Q

Osmosis

A

Osmosis is a type of passive transport that moves water molecules across a semipermeable membrane from an area of high water concentration to an area of low water concentration

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3
Q

Endosmosis and exosmosis

A

Endosmosis is when water molecules enter a cell, and exosmosis is when they exit

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