A Student Encounters a Pondweed Which, Judging from Its Appearance

question 20

Multiple Choice

A student encounters a pondweed which, judging from its appearance, seems to be a charophyte. She brings a sample back to her biology lab. Using only a compound light microscope to study the sample, which of the following features should help her to determine whether the sample comes from a charophyte or from some other type of green alga?
1) molecular structure of enzymes inside peroxisomes
2) structure of sperm cells
3) presence of phragmoplasts
4) rings of cellulose-synthesizing complexes

• A) 1 and 3
• B) 1 and 4
• C) 2 and 3
• D) 1, 3, and 4
• E) 2, 3, and 4

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