Investigating Cell Membrane Permeability (AQA A-Level Biology): Flashcards

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Investigating Cell Membrane Permeability
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Pigment in beetroot cells

Betalain

Membrane structure showing selective permeability

Phospholipid bilayer

Why rinse beetroot cubes after cutting

Removes pigment released during cutting

Colorimeter filter colour used

Blue

What higher absorbance indicates

Greater membrane permeability

Effect of heat on membrane proteins

Denatures them

Phospholipids at low temperature

Pack tightly together, creating rigid membrane

How ethanol disrupts membranes

Dissolves phospholipid components

Time samples left for pigment leakage

20 minutes

Effect of ice crystals on membranes

Pierce the cell membrane

Explore AQA A-Level Biology Revision Notes by Topics

Risk Assessment

Rate of an Enzyme Controlled Reaction

Calculating Mitotic Index using Plant Cells

Investigating Water Potential

Investigating Cell Membrane Permeability

Dissection

Aseptic Techniques

Chromatography of Photosynthetic Pigments

Dehydrogenase Activity in Chloroplasts

Respiration in Single-Celled Organisms

Investigating Simple Animal Responses

Measuring Concentration of Glucose Using a Calibration Curve

Effect of Different Variables on Species Distribution

Show more

Dehydrogenase Activity in Chloroplasts

Respiration in Single-Celled Organisms

Investigating Simple Animal Responses

Measuring Concentration of Glucose Using a Calibration Curve

Effect of Different Variables on Species Distribution

Explore AQA A-Level Biology Model Answers by Topics

Risk Assessment

Rate of an Enzyme Controlled Reaction

Calculating Mitotic Index using Plant Cells

Investigating Water Potential

Investigating Cell Membrane Permeability

Dissection

Aseptic Techniques

Chromatography of Photosynthetic Pigments

Dehydrogenase Activity in Chloroplasts

Respiration in Single-Celled Organisms

Investigating Simple Animal Responses

Measuring Concentration of Glucose Using a Calibration Curve

Effect of Different Variables on Species Distribution

Show more

Dehydrogenase Activity in Chloroplasts

Respiration in Single-Celled Organisms

Investigating Simple Animal Responses

Measuring Concentration of Glucose Using a Calibration Curve

Effect of Different Variables on Species Distribution

Explore AQA A-Level Biology Quizzes by Topics

Risk Assessment

Rate of an Enzyme Controlled Reaction

Calculating Mitotic Index using Plant Cells

Investigating Water Potential

Investigating Cell Membrane Permeability

Dissection

Aseptic Techniques

Chromatography of Photosynthetic Pigments

Dehydrogenase Activity in Chloroplasts

Respiration in Single-Celled Organisms

Investigating Simple Animal Responses

Measuring Concentration of Glucose Using a Calibration Curve

Effect of Different Variables on Species Distribution

Show more

Dehydrogenase Activity in Chloroplasts

Respiration in Single-Celled Organisms

Investigating Simple Animal Responses

Measuring Concentration of Glucose Using a Calibration Curve

Effect of Different Variables on Species Distribution

Explore AQA A-Level Biology Exam Questions by Topics

Risk Assessment

Rate of an Enzyme Controlled Reaction

Calculating Mitotic Index using Plant Cells

Investigating Water Potential

Investigating Cell Membrane Permeability

Dissection

Aseptic Techniques

Chromatography of Photosynthetic Pigments

Dehydrogenase Activity in Chloroplasts

Respiration in Single-Celled Organisms

Investigating Simple Animal Responses

Measuring Concentration of Glucose Using a Calibration Curve

Effect of Different Variables on Species Distribution

Show more

Dehydrogenase Activity in Chloroplasts

Respiration in Single-Celled Organisms

Investigating Simple Animal Responses

Measuring Concentration of Glucose Using a Calibration Curve

Effect of Different Variables on Species Distribution

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