Understanding Photosynthesis and Carbohydrates

What is the primary purpose of photosynthesis in plants?

• To create water molecules

• To absorb carbon dioxide

• To convert sunlight into chemical energy

• To produce oxygen for humans

Which molecule is considered the 'golden egg' in photosynthesis?

• Oxygen

• Glucose

• Carbon dioxide

• Water

What is the result of the condensation reaction between two glucose molecules?

• Maltose and water

• Fructose and oxygen

• Lactose and carbon dioxide

• Sucrose and water

How does physical condensation differ from chemical condensation?

• Chemical condensation does not involve any bond formation

• Chemical condensation involves a change of state

• Physical condensation forms new substances

• Physical condensation is a change of state without forming new substances

What type of bond is formed when glucose molecules join to form polymers?

• Glycosidic bonds

• Ionic bonds

• Peptide bonds

• Hydrogen bonds

What process breaks down starch into glucose in the body?

• Condensation

• Hydrolysis

• Photosynthesis

• Fermentation

Why is it healthier to consume long-chained starch rather than short glucose molecules?

• Starch contains more nutrients

• Glucose is harder to digest

• Starch breaks down more slowly, preventing glucose spikes

• Starch provides more energy

What is the scientific term for sugars derived from the Greek word 'saccharide'?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

What is a disaccharide?

• A long chain of sugar molecules

• Two sugar molecules joined together

• A single sugar molecule

• A sugar molecule with a phosphate group

Which of the following is a polysaccharide?

• Glucose

• Maltose

• Fructose

• Starch