Name the Structure with Arrow Points
Not what you're looking for?
Download the image (attached)
1. Name the structure to which the arrow points.
2. Give an example of a specific organism which has the structure.
3. Briefly describe at least one function the structure performs (what it helps the organism do).
Purchase this Solution
Solution Summary
The expert names the structures with arrow points. At least one function that structure performs that helps the organism is discussed.
Solution Preview
Please find the attached solution.
Solution:
1. Arrow indication denotes flagellum of that organism
Example:
Euglena is a genus of microscopic, one-celled organisms in the Protista kingdom. There are about 150 species of euglenas. They live in fresh water, and are especially common in warm seasons when they may form a green scum on the surfaces of small ponds or drainage ditches.
Euglenas use a flagellum (a whiplike appendage) that sticks out from the body, to move and are thus categorized as flagellates.
Characteristic features of flagella:
flagella move liquid past the surface of the cell
Swimming is the major form of movement exhibited by sperm and by many protozoans
Flagella consist of:
• a cylindrical array of 9 filaments consisting of:
o a complete microtubule extending into the tip of the cilium;
o a partial microtubule that doesn't extend as far into the tip.
o cross-bridges of the motor protein dynein that extend from the complete microtubule of one filament to the partial microtubule of the adjacent filament.
• a pair of single microtubules running up through the center of the bundle, producing the "9+2" arrangement.
• The entire assembly is sheathed in a membrane that is an extension of the plasma membrane.
2. Arrow indication denotes pseudopodium of that organism
Example:
Amebas use mobile extensions of the cytoplasm called pseudopodia for movement and food capture. Protozoans that form pseudopodia have two type of cytoplasm, an outer, more viscous portion called the ectoplasm and an inner, more fluid portion called the endoplasm. When a pseudopodium begins to form, a clear space at the leading edge of the pseudopodium called the hyaline cap appears. After ...
Purchase this Solution
Free BrainMass Quizzes
Hemophilia: Fact or Fiction
Do you know the truth about hemophilia? Test your knowledge here.
Breastfeeding Basics
How much do you know about breastfeeding? Find out with this quiz!
Vision and Oculomotor Control
This quiz will test the student's knowledge of the neural underpinnings of the visual system and its central pathways.
Parts of the Brain
This quiz will test your knowledge on different areas of the brain.
Feeding Babies
Do you know the science behind feeding babies? Test your knowledge with this quiz.