Biology, 16.07.2019 08:30 antasiaturner7

Euglena, one of the most common flagellated protozoa, has a red despot which is important for a. detecting colors. b. being able to see food sources. c. detecting light for photosynthesis.

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Answer from: vanitycarraway2000

C. Detecting light for photosynthesis.

Explanation:

An Euglena is a protozoan. It has an single cell which makes it a unicellular organism. It is also has a well defined nucleus with membrane bound organelles which makes the Euglena eukaryotic in nature.

An Euglena possesses both human and plant like traits. Its human trait is that an Euglena moves with the aid of a flagella. Its plant like trait is that an Euglena has chloroplast present as one of its membrane bound organelles which its uses for photosynthesis.

Due to the presence of animal and plant like traits in an Euglena, and Euglena is both autotrophic and heterotrophic in nature.

One of the organelles present in the Euglena is its eyespot. This is a very important organelle because the Euglena uses the eyespot to detect sunlight for the process of photosynthesis. The chloroplast then traps this detected light for photosynthesis.

Answer from: Quest

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

Answer from: Quest

Proteins are the workhorses of the cell, controlling virtually every reaction within as well as providing structure and serving as signals to other cells. proteins are long chains of amino acids , and the exact sequence of the amino acids determines the final structure and function of the protein. instructions for that sequence are encoded in genes . to make a particular protein, a messenger ribonucleic acid (mrna) copy is made from the gene (in the process called transcription ), and the mrna is transported to the ribosome . protein synthesis, also called translation , begins when the two ribosomal subunits link onto the mrna. this step, called initiation, is followed by elongation, in which successive amino acids are added to the growing chain, brought in by transfer rnas (trnas). in this step, the ribosome reads the nucleotides of mrna three by three, in units called codons , and matches each to three nucleotides on the trna, called the anticodon. finally, during termination, the ribosome unbinds from the mrna, and the amino acid chain goes on to be processed and folded to make the final, functional protein

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Euglena, one of the most common flagellated protozoa, has a red despot which is important for a. de...

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