The Effects of Temperature on Cell Permeability

These flashcards cover key concepts regarding the effects of temperature on cell permeability, focusing on transport mechanisms, experimental design, and analysis techniques.

Cell membranes allow substances to cross into and out of the cell via __.

Passive diffusion, facilitated diffusion, osmosis, active transport.

The structure of the cell membrane is primarily a __ bilayer.

Phospholipid.

Factors affecting diffusion include temperature, distance, surface area, size of molecule, and __ steepness.

Concentration gradient.

Active transport requires energy input from __.

ATP.

Water potential is measured in __.

KPa.

The movement of water by osmosis aims to __ out concentration discrepancies.

Balance.

The beetroot pigment tested in experiments is called __.

Betalain.

In the beetroot experiment, the independent variable (IV) is __.

Temperature.

Analysing colour intensity in beetroot experiments can be done quantitatively using a __.

Colorimeter.

To prevent additional damage to membranes during the beetroot experiment, it is advised to wear __.

Gloves.

Anomalous results in the experiment indicate unusual __ readings.

Light transmission.

The kinetic energy of membrane lipids and proteins increases with __.

Temperature.

As temperature increases, permeability appears to __.

Increase.

The relative colour intensities from the beetroot experiment can be compared in a __ analysis.

Semi-quantitative.

To ensure consistent results, the time allocated per test tube must be kept __.

The same.

Limitations of the beetroot experiment mainly include testing the permeability of only __ membranes.

Vacuole.