Biology GCSE Respiration and food tests

biology GCSE year 10 mocs OCR

Glucose

Glucose

C₆H₁₂O₆

Lactic Acid

2 C₃H₆O₃

Photosynthesis

Carbon Dioxide + Water —> Glucose + Oxygen

Aerobic Respiration

Glucose + Oxygen —> Carbon dioxide + Water

Anaerobic Respiration

Glucose —> Lactic acid

Aerobic respiration

Converting glucose to energy efficiently

Anaerobic respiration

Converting glucose to energy inefficiently

What happens to lacitic acid

It builds up and needs to be released

Protien

Growth and repair

Carbohydrates

To provide energy

Lipids

A store of energy and inoculation

What is starch made up of

Chains of simple sugars

What is starch broken down by

Carbohydrase

What are proteins made up of

Amino Acids

What is protein broken down by

Protease

What are lipids made up of

Glycerol and 3 fatty acids

What are lipids broken down by

Lipase

Where does aerobic respiration take place in

Mitochondria

Ideal factors for photosynthesis

Ideal Light, Carbon dioxide and temperature

What solution tests for protein

Biuret solution

Positive result of biuret solution

Pink/Purple

What solution tests for lipids

Ethanol

What is a positive result of ethanol

It will turn milky

What solution tests for starch

Iodine

What is a positive result for iodine

Blue/Black

What solution tests for sugars

Benedicts solution

What is a positive result for Benedict’s solution

Green/yellow or brick red

What is the poisonous substance in Biuret solution

Copper sulfate

What is the caustic substance in Biuret solution

Sodium hydroxide