Table of Contents
What organelle is a tube network in the cytoplasm where cell substances and proteins are made?
Endoplasmic reticulum is a network of membranes inside a cell through which proteins and other molecules move. Proteins are assembled at organelles called ribosomes.
What is the cytoplasm of a cell made up of?
Cytoplasm is a thick solution that fills each cell and is enclosed by the cell membrane. It is mainly composed of water, salts, and proteins. In eukaryotic cells, the cytoplasm includes all of the material inside the cell and outside of the nucleus.
What is the structure that distributes substances made in the cell?
The fluid inside the vacuole. The movement of a substance against a concentration gradient. The structure that distributes substances made in the cell….2.6 End of chapter exercises (ESG5F)
| Animal Cells | Plant Cells |
|---|---|
| Nucleus is generally found at the centre of the cytoplasm. | Nucleus is found near the edge of the cell. |
Where are cell materials produced?
How Are Cell Membranes Synthesized? Membranes and their constituent proteins are assembled in the ER. This organelle contains the enzymes involved in lipid synthesis, and as lipids are manufactured in the ER, they are inserted into the organelle’s own membranes.
Where is cytoplasm made?
In a eukaryotic cell, the cytoplasm is made up of the cytosol, the vesicles, the cytoskeleton, the inclusions, and the organelles except for the nucleus. The cytoplasm of a eukaryotic cell is that part of the cell between the cell membrane and the nuclear envelope.
What carries proteins and other substances through the cytoplasm?
The Endoplasmic Reticulum or ER is an extensive system of internal membranes that move proteins and other substances through the cell. The part of the ER with attached ribosomes is called the rough ER. The rough ER helps transport proteins that are made by the attached ribosomes.
Which cell structure synthesizes the substances used for building materials by the cell?
The endoplasmic reticulum
The endoplasmic reticulum (ER) is involved in the synthesis of lipids and synthesis and transport of proteins. The Golgi apparatus modifies, sorts, and packages different substances for secretion out of the cell, or for use within the cell.
Where proteins are made in the cells the dots?
Ribosomes
Ribosomes are the cellular structures responsible for protein synthesis. When viewed through an electron microscope, ribosomes appear either as clusters (polyribosomes) or single, tiny dots that float freely in the cytoplasm.