Which structure manufactures the components of ribosomes group of answer choices?
Which structure manufactures the components of ribosomes group of answer choices?
nucleolus
What is a structure that contains DNA and regulates genes?
The nucleus (plural, nuclei) houses the cell’s genetic material, or DNA, and is also the site of synthesis for ribosomes, the cellular machines that assemble proteins. Inside the nucleus, chromatin (DNA wrapped around proteins, described further below) is stored in a gel-like substance called nucleoplasm.
Which of the following structures contains DNA?
– (Nucleus [nuclei, pl]: a large membrane- enclosed structure that contains the cells’ genetic material in the form of DNA.)
Which two structures are found only in plant cells?
Plant cells have a cell wall, a large central vacuole, and plastids such as chloroplasts. The cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell, providing structural support and protection. The central vacuole maintains turgor pressure against the cell wall.
What are distinct threadlike structures that contain DNA?
Chapter 7: Cell Structure and Function
| A | B |
|---|---|
| chromatin | the granular material visible within the nucleus of a cell |
| chromosome | distinct threadlike structures containing the genetic information that is passed from one generation of cells to the next |
| nucleolus | a small dense region inside the nuclei |
Which structures contain the genetic material of the cell?
The nucleus, formed by a nuclear membrane around a fluid nucleoplasm, is the control center of the cell. Threads of chromatin in the nucleus contain deoxyribonucleic acid (DNA), the genetic material of the cell.
What threadlike structures contain the instructions for running a cell?
The nucleus contains nearly all the cell’s DNA and the coded instructions for making proteins and other important molecules. Proteins are assembled on ribosomes.
What does the term organelle mean literally?
Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive.
What is the best definition of an organelle?
: a specialized cellular part (such as a mitochondrion, chloroplast, or nucleus) that has a specific function and is considered analogous to an organ.
What is the root word of organelle?
The term organelle is derived from the word ‘organ’ and refers to compartments within the cell that perform a specific function.
What is another word for organelle?
Synonyms for Organelle:
- cell wall,
- chloroplast,
- culture medium,
- culture,
- cytology,
- cellular,
- cell membrane,
- cell.
What is two types of organelles?
Different Cell Organelles and their Functions
- Plasma Membrane.
- Nucleus/DNA.
- Ribosome.
- Mitochondria.
- Vacuoles.
- Cytoskeleton.
- Plastids.
- Endoplasmic Reticulum.
What is an organelle give three examples?
The nucleus, the mitochondrion, the chloroplast, the Golgi apparatus, the lysosome, and the endoplasmic reticulum are all examples of organelles. Some organelles, such as mitochondria and chloroplasts, have their own genome (genetic material) separate from that found in the nucleus of the cell.
What are organelles in the cell?
An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes, which assemble proteins.
What are 10 organelles and their function?
Major eukaryotic organelles
| Organelle | Main function | Notes |
|---|---|---|
| Golgi apparatus | sorting and modification of proteins | |
| mitochondrion | energy production | has some DNA; originated by endosymbiosis |
| nucleus | DNA maintenance, RNA transcription | has bulk of genome |
| vacuole | storage, homeostasis |
What are organelles examples?
Examples of organelles are lysosomes, nucleus , mitochondria , and the endoplasmic reticulum .
What is cell organelles and their functions?
- Transporting channels of the cell—— Endoplasmic Reticulum.
- Powerhouse of the cell—— Mitochondria.
- Packaging and dispatching unit of the cell—— Golgi Body.
- Digestive bag of the cell—— Lysosomes.
- Storage sacs of the cell—— Vacuole.
- Kitchen of the cell—— Chloroplast.
- Control room of the cell—— Nucleus.
What are the 13 organelles and their functions?
Terms in this set (13)
- nucleus. contains the cell’s DNA and is the control center of the cell.
- endoplasmic reticulum. transports materials within cell; process lipids.
- mitochondria. breaks down food to release energy for the cell.
- cell membrane. controls what goes in and out of the cell.
- ribosome.
- cytoplasm.
- golgi body.
- lysosome.
What is the role of each component of cell?
All the organisms are made up of cells. They form the structural basis of all the organisms. The cell wall and the cell membrane are the main components that function to provide support and structure to the organism.
What are the four main parts of a cell?
All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4) …
What are the 5 parts of a cell?
Nucleus, mitochondria, ribosome, cytoplasm, cell membrane.
What are the basic components of cell class 8?
CBSE NCERT Notes Class 8 Biology Cell. Cell is made up of basically 3 components: Cell Membrane, cytoplasm and nucleus. The outer boundary of cell enclosing nucleus and cytoplasm is called cell membrane or plasma membrane. The cell membrane separates cell and its components from the outside environment.
What is tissue class 8?
Tissue is a group of cells that are similar in structure and are organized together to perform a specific task.
What is chloroplast Class 8?
The definition the chloroplast is “containing plastid found within the cells of plants and other photosynthetic eukaryotes.” Chloroplast is a green original only found in plants. They are the food producers of the cell. They are only found in plant cells and some protists. Animal cells do not have chloroplasts.