A student encounters a pondweed that appears to be a charophyte. Which of the following features would help the student determine whether the sample comes from a charophyte or from some other type of green alga?
A) molecular structure of enzymes inside the chloroplasts and presence of phragmoplasts
B) molecular structure of enzymes inside the chloroplasts and rings of cellulose-synthesizing complexes
C) structure of sperm cells and presence of phragmoplasts
D) structure of sperm cells, presence of phragmoplasts, and rings of cellulose-synthesizing complexes

Question

02-11-2019
Biology

contestada

A student encounters a pondweed that appears to be a charophyte. Which of the following features would help the student determine whether the sample comes from a charophyte or from some other type of green alga?
A) molecular structure of enzymes inside the chloroplasts and presence of phragmoplasts
B) molecular structure of enzymes inside the chloroplasts and rings of cellulose-synthesizing complexes
C) structure of sperm cells and presence of phragmoplasts
D) structure of sperm cells, presence of phragmoplasts, and rings of cellulose-synthesizing complexes

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podgorica podgorica · Answer 1 · 2019-11-05T04:27:08+01:00

Answer:

Option D, structure of sperm cells, presence of phragmoplasts, and rings of cellulose-synthesizing complexes

Explanation:

The cells of Charophyte contain several chloroplast and nuclei and thus they are known as coenocytic.

The structure of their sperm is very similar to that of the plants on land which make it distinctive from other fresh water algae. The sperm has flagella that makes it motile.

Only one of the Charophyta species uses the phragmoplast method of cell division just like plants

Like land plants, charophytes' plasma membrane has distinctive rings of cellulose-synthesizing complexes which synthesizes cellulose microfibrils

Hence, option D is correct

akposevictor akposevictor · Answer 2 · 2022-03-25T13:32:57+01:00

The features that would help the student determine whether the sample comes from a charophytes of from other type of green algae are: D. structure of sperm cells, presence of phragmoplasts, and rings of cellulose-synthesizing complexes.

What are Charophytes?

Charophytes, such as Streptophyta and Virideplantae, are described as surviving group of the green algae that are closely relate to most modern plants.

Thus, the sperm structure of plants on land and charophytes are similar, which differentiates it from other fresh water plants. The charophytes possess flagella which makes it motile.

Therefore, the features that would help the student determine whether the sample comes from a charophytes of from other type of green algae are: D. structure of sperm cells, presence of phragmoplasts, and rings of cellulose-synthesizing complexes.

Learn more about charophytes on:

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