Which of the Following Statements Is False Concerning the Xylem

question 52

Multiple Choice

Which of the following statements is false concerning the xylem?

• A) Xylem tracheids and vessels fulfill their vital function only after their death.
• B) The cell walls of the tracheids are greatly strengthened with cellulose fibrils forming thickened rings or spirals.
• C) Water molecules are transpired from the cells of the leaves, and replaced by water molecules in the xylem pulled up from the roots due to the cohesion of water molecules.
• D) Movement of materials is by mass flow; solutes in xylary sap move due to a positive turgor pressure gradient from source to sink.
• E) In the morning, sap in the xylem begins to move first in the twigs of the upper portion of the tree, and later in the lower trunk.

Learn about the factors influencing variations in growth rates among infants.

Understand the development and functions of the prefrontal cortex in infancy.

Acknowledge gender differences and their timing in growth rates.

Grasp the concept of infant growth restriction and its implications.

---

Definitions:

Freud's View

Refers to the theories and perspectives of Sigmund Freud, focusing on psychoanalysis, the unconscious mind, and the influence of childhood experiences on adult personality.

Wish Fulfillment

A psychoanalytic concept suggesting that dreams represent the unconscious fulfillment of repressed desires.

Role-Playing Theory

The concept that people learn and adapt behaviors based on the roles they are expected to play in society, which can influence their identity and social interactions.

Divided-Consciousness Theory

A hypothesis in psychology that suggests the mind can operate on more than one level of awareness simultaneously.