In Van Helmont's Experiment Measuring a Growing Tree, Which Possible

question 38

Multiple Choice

In van Helmont's experiment measuring a growing tree, which possible energy source for the tree's growth was he able to rule out?

• A) Oxygen
• B) Water
• C) Carbon dioxide
• D) Soil

---

Definitions:

Motility

The ability of an organism or fluid to move spontaneously and actively, consuming energy in the process.

Self-Propulsion

The ability of an object or being to move or propel itself using its own power mechanism without external assistance.

Double Helix

The structure of DNA, consisting of two strands that wind around each other like a twisted ladder.

PKU

stands for Phenylketonuria, a genetic disorder resulting from the body's inability to process the amino acid phenylalanine, leading to its accumulation and potential brain damage.