What is the structure and function of protists?
Protists: Structures and Functions
| A | B |
|---|---|
| nucleus | controls life functions |
| cytoplasm | gives the cell its shape |
| cell membrane | controls what enters and exits the cell |
| contractile vacuole | gets rid of excess water |
What cell structure does a protist have?
Protists are a diverse collection of organisms. While exceptions exist, they are primarily microscopic and unicellular, or made up of a single cell. The cells of protists are highly organized with a nucleus and specialized cellular machinery called organelles.
What are the 3 structures of a protist that allow it to move?
All protists can travel through water by one of three methods: cilia, flagella, or pseudo/axopodia. With that said, let’s explore the three main types of protists and their forms of locomotion.
What structures or features do all protists have in common?
Characteristics of Protists. Like all other eukaryotes, protists have a nucleus containing their DNA. They also have other membrane-bound organelles, such as mitochondria and the endoplasmic reticulum. Most protists are single-celled.
What are the functions of protist?
Protists function at several levels of the ecological food web: as primary producers, as direct food sources, and as decomposers. In addition, many protists are parasites of plants and animals and can cause deadly human diseases or destroy valuable crops.
What are the main characteristics of Kingdom Protista?
Characteristics of Protists
- They are eukaryotic, which means they have a nucleus.
- Most have mitochondria.
- They can be parasites.
- They all prefer aquatic or moist environments.
What structure and function are common to all plants and some protists?
The eukaryotic cells of animals, plants, fungi, and microscopic creatures called protists have many similarities in structure and function. They have the structures common to all cells: a plasma membrane, cytoplasm, and ribosomes.
What is the function of the pellicle in protists?
The pellicle functions like a flexible coat of armor, preventing the protist from being torn or pierced without compromising its range of motion.
What are the characteristics features of Kingdom Protista?
Outline the characteristics of Kingdom Protista.
- All protists are eukaryotic organisms.
- Most protists are aquatic, others are found in moist and damp environments.
- Most are unicellular, however, there are a few multicellular protists such as the giant kelp.
- They may be autotrophic or heterotrophic in nature.
What are the important characteristics of protists?
What are the features of the protist cell?
Characteristics of Protists They are eukaryotic, which means they have a nucleus. Most have mitochondria. They can be parasites. They all prefer aquatic or moist environments.
How do protists function as carbon sinks?
How does is relate to protists? The movement of carbon atoms from carbon dioxide molecules in the atmosphere to organisms in the soil or the ocean and then back to the atmosphere. Protists play a key role in the global carbon cycle and act as carbon sinks that could help reduce global warming.
