The Cotyledons Elongate Most Dramatically and May Become Curved During

question 53

Multiple Choice

The cotyledons elongate most dramatically and may become curved during the _______ stage.

• A)proembryo
• B)torpedo
• C)suspensor
• D)heart
• E)globular

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Definitions:

Singlet

In spectroscopy, a singlet represents a state in which all the electron spins are paired, leading to no magnetic spin multiplicity in the atomic or molecular orbital.

Proton Spin Decoupled

A nuclear magnetic resonance technique where the interaction between hydrogen nuclei and neighboring nuclei is removed to simplify the spectrum.

Triplet

In chemistry, a molecular entity with three similar elements or functional groups in its structure or a magnetic quantum state distinguished by three levels.

Doublet

A pattern observed in NMR spectroscopy, indicating two adjacent hydrogen atoms influencing the resonance of another hydrogen or group.