What is the difference between Chara and Nitella?

What is the difference between Chara and Nitella?

Description. Both Nitella and Chara look like rooted, aquatic plants, but both are actually a form of algae. Both have whorls of branches coming off the main stem and are common in Pennsylvania ponds and lakes. Chara prefers alkaline, hard water ponds, while Nitella prefers more acidic ponds with soft sediments.

What is a Nitella cell?

ABSTRACT. The Nitella internodal cell is formed by a division of the segment cell, the latter being a direct derivative of the shoot apical cell. The internodal cell is remarkable in that it elongates from an initial length of about 20 microns to a mature length of about 60 millimeters.

Are Nitella land plants?

You figured it out already: land plants evolved from Green Algae. Land plants have stems and branches. So does Nitella. Land plants have complex reproductive structures.

What eats the Chara plant?

As with other submerged aquatic plants, chara provides important food and habitat for aquatic animals large and small. The smallest animals, such as daphnia and tiny insects, are eaten by progressively larger ones, fish, amphibians, birds, and so on. Some waterfowl eat chara.

Do Nitella contain chloroplasts?

Bulk streaming in Nitella is brought about by movement of ER along tracks consisting of bundles of polarized actin filaments associated with chloroplasts (Fig. 37.9C).

What is the function of cytoplasmic streaming in Nitella?

Cytoplasmic streaming (CPS) is well known to assist the movement of nutrients, organelles and genetic material by transporting all of the cytoplasmic contents of a cell.

How do you remove Chara from a pond?

Chara can be removed by raking or seining, but is difficult to control because it re-establishes from spores and fragments. Fertilization to produce a phytoplankton or algal “bloom” prevents the establishment of most bottom rooted aquatic weeds and produces a strong food chain to the pond fish.

How do I get rid of Chara in my pond?

What is wrong about Chara?

Chara is a monoecious plant so it contains both male and female parts on a single plant. Hence, the right answer is option C. Note: Chara is distributed throughout Europe but is considered threatened due to declining numbers.

What is a Chara?

Definition of chara 1 capitalized : a genus (the type of the family Characeae) of plants common in freshwater lakes of limestone districts and usually having the central internodal cells of the stem, often encrusted with calcareous deposits, sheathed by smaller cells — see nitella.

Why is euglena placed in zoology?

Euglena is a claimed to be a plant by botanists because it contains chloroplats and obtains its food through photosynthesis. On the other hand, zoologists consider it to be an animal as its body is covered by pellicle, it bears myonemes and reproduces by binary fission.

What is the significance of cytoplasmic streaming?

Cytoplasmic streaming plays an important role in cell processes since it promotes solute exchange between the cytoplasm and organelles and enables lateral transport for extensive distances.

What is meant by cytoplasmic streaming?

Cytoplasmic streaming is characterized by the rapid movement of organelles and other cellular components throughout the cell. In plants, the process depends on actin filaments and myosin motor proteins and plays an important role in cell growth.

How are charophytes different to land plants?

Charophyte chloroplasts contain chlorophyll a and b. Charophyte plant cell walls contain plasmodesmata to allow transfer between cells within multicellular organisms. Charophytes do not exhibit growth throughout the entire plant body. Charophytes are multicellular organisms that lack vascular tissue.