Chapter 2.4 "The Euglena"

Are euglena considered a heterotroph, autotroph, or decomposer?

• Autotrophic - meaning they can create their own food by using chloroplasts.
• Heterotrophic - meaning they have to go search for their food.
• Decomposer - meaning they eat off of dead, rotting matter.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

What special way do euglena eat?

• Euglena use a flagellum to sweep food into a gullet-like mouth called an oral groove.
• Euglena use the process of photosynthesis which allows a Euglena to convert light energy into sugars for the organism.
• Euglena engulf food with pseudopods which allows a euglena to be heterotrophic

A contractile vacuole is used by a Euglena to 

• make their own food by the process of photosynthesis.
• secrete enzymes for digestion within the food vacuole.
• excrete excess water out of the cell
• produce antibodies to defend the cell from predators.

How does a euglena move?

• Cilia - many tiny hair-like structures that allow the euglena to move around its watery environment.
• Flagella - a whip-like structure that allows the euglena to move around its watery environment.
• pseudopods - aka false foot, euglena use cytoplasmic streaming which creates pseudopods to move around.

Plantl-like protists are classified by

• their cell wall composition
• how many cells they have
• their method of reproduction
• their method of obtaining energy, aka how they eat.

The organelle called the _________ is found within a euglena that controls cell activities such as respiration, protein synthesis and digestion

• Nucleus
• contractile vacuole
• chloroplasts
• flagellum

Tags

NGSS.MS-LS1-2

What are the ways within which microbiologists classify protists?

• Microbiologists classify protists by the way they look. Some of them are green in color, while others are clear.
• Microbiologist classify protists by observing their method of obtaining energy.
• Microbiologists classify protists by observing how they move. Some protists use cilia to move, while some other use cytoplasmic streaming or flagellum.
• Microbiologists classify protists by observing how they move, and the protists method of obtaining energy.

Tags

NGSS.MS-LS4-2

As we already know, autotrophic euglena protists are plantl-like in extracting energy for food. What does it mean when a euglena protist is "autotrophic"?

• Autotrophic euglena protists are protists that have to move to find their food, and eat smaller organisms to survive. Sometimes, these types of protists eat each other, or other protists.
• Autotrophic euglena protists are protists that do not have to move to fin their own food, rather, these protists can perform photosynthesis which allows for these types of protists to create their own food.
• Autotrophic euglena protists are protists that feed off of dead, rotting decaying matter which allows for these types of protists to live in many environments.

The organelle that allows the euglena to produce its own food by photosynthesis processes by converting light energy into food is called the ___________?

• Chloroplast
• Flagellum
• cytoplasm
• Cell Membrane

The organelle that is a protective coat surrounding the euglena that holds its shape is called?

• Tricocysts
• cell membrane
• pellicle
• cytoplasm