RESPIRATION LAB

RESPIRATION LAB

Multiple Choice

Which seeds are used in the experiment to show that carbon dioxide is given out during respiration?

• Dry seeds

• Germinating seeds

• Boiled seeds

• Crushed seeds

Multiple Choice

In the experiment demonstrating respiration in germinating seeds, why is KOH used?

• Absorb carbon dioxide produced by the seeds.

• Absorb oxygen present in the flask.

• Absorb water vapour released by the seeds.

• Liberate oxygen to be used by the seeds

Multiple Choice

A student set up the apparatus for the experiments to show that Co2 is released during respiration. After 2 hours what would he or she observe?

• KOH turning milky.

• Water level rising in the bend tube in the beaker.

• Water level decreasing in the bent in the beaker.

• Water turning turbid in the beaker.

Multiple Choice

Germinating seeds are used to demonstrate respiration experimentally, because they carry out which of the following?

• Active respiration.

• Slow respiration.

• Either active respiration or slow respiration..

• Breathing

Multiple Choice

What is the general equation for respiration?

• C₆H₁₂O₆ + 6CO₂ → 6CO₂ + 6H₂O + Energy

• C₆H₁₂O₆ + 12O₂ → 6CO₂ + 6H₂O + Energy

• C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + Energy

• C₆H₁₂O₆ + 6O₂ → 12CO₂ + 6H₂O