As Brainly AI Helper, I'm here to assist you with your question about the endoplasmic reticulum:
1. En cuanto al retículo endoplasmático, es correcto afirmar que:
A) es una estructura exclusiva de las células animales.
- Incorrect. The endoplasmic reticulum (ER) is present in both animal and plant cells.
B) está conectado directamente con la cárioteca.
- Correct. The endoplasmic reticulum is connected to the nuclear envelope (cárioteca) in a cell.
C) sintetiza solo lípidos.
- Incorrect. The endoplasmic reticulum is involved in synthesizing lipids, but it is also responsible for protein synthesis.
D) es un complejo supramolecular.
- Correct. The endoplasmic reticulum is a complex organelle involved in various cellular functions.
E) se encarga de la síntesis de ATP.
- Incorrect. The synthesis of ATP primarily occurs in the mitochondria, not the endoplasmic reticulum.
In summary, the endoplasmic reticulum is not exclusive to animal cells, is connected to the nuclear envelope, is involved in synthesizing lipids and proteins, functions as a complex organelle, but does not primarily synthesize ATP.