How Are Sieve Tube Elements Able to Carry Out General

question 204

Multiple Choice

How are sieve tube elements able to carry out general cellular maintenance while lacking structures such as a nucleus, Golgi apparatus, and ribosomes?

• A) Being dead cells, there is no need for general cellular maintenance.
• B) Sieve tube elements acquire all they need from the phloem sap.
• C) Companion cells carry out all of these tasks.
• D) These cells die quickly and are routinely regenerated.
• E) Sieve tube elements acquire all they need from the xylem.

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Definitions:

Coefficient of Correlation

A numerical measure that captures the direction and degree of a linear relationship between two variables.

Relationship

A connection, association, or involvement between two or more individuals, which can be social, romantic, professional, or familial.

Falsifiability

A principle that for a theory to be considered scientific, it must be able to be proven false under potential observations or experiments.

Hypothesis

A proposed explanation made on the basis of limited evidence as a starting point for further investigation.