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Is a Paramecium an open system?
Yes, a Paramecium is an open system because it interacts with its environment by exchanging energy and matter. It takes in nutrients and releases waste products to maintain its internal environment.
Which system regulates the internal and external environment?
The nervous system and the endocrine system work together to regulate the internal and external environment of the body. The nervous system uses electrical impulses to send signals quickly, while the endocrine system uses hormones to send chemical messages more slowly. Together, these systems monitor and adjust various bodily functions to maintain homeostasis.
The two systems that directly control homeostasis in most animals are?
The nervous system and the endocrine system are the two main systems that directly control homeostasis in most animals. The nervous system quickly responds to changes in the body's internal and external environment, while the endocrine system secretes hormones that regulate various bodily functions and help maintain a stable internal environment.
What is the internal space of the endoplasmic reticulum called?
The internal space of the endoplasmic reticulum is called the cisternal space, or lumen, which is part of the "rough endoplasmic reticulum." The lumen is the staging area where the final modifications of protein synthesis take place, and its quality is analysed before releasing it for transportation to it's intended destination.
Why lumen is present in endoplasmic reticulum?
Lumen in the endoplasmic reticulum functions as a compartment for protein folding and processing. It provides an isolated environment where these activities can occur efficiently and separately from the rest of the cell. Additionally, the lumen contains specific enzymes and chaperones that aid in protein maturation and quality control.
