Because they are ultra microscopic! you can tract them if you have high resolution microscopes such as electron microscopes.
Define unit vector
nucleus, ribosomes, lysosomes, endoplasmic reticulum (ER), Golgi bodies, cell membrane, cytoplasm, mitochondria,
mitochondria peroxisomes lysosomes golgi apparatus/ complex nucleus nucleolus endoplasmic reticulum (ER) : smooth endoplasmic reticulum rough endoplasmic reticulum ribosomes
mitochondria, Golgi apparatus, endoplasmic reticulum, lysosome, ribosomes, vacuoles
Proteins are produced in the cytoplasm, in the rough endoplasmic reticulum, in mitochondria, and in chloroplasts.
The endoplasmic reticulum is an organelle that transports materials within a cell. It can be classified into two, namely: the rough endoplasmic reticulum which has ribosomes and the smooth endoplasmic reticulum which does not have ribosomes.
Smooth Endoplasmic Reticulum lacks ribosomes.
Go ask your teacher. Bye.
Ribosomes attach to the Endoplasmic Reticulum forming Rough Endoplasmic Reticulum.
Endoplasmic Reticulum: a series of highly folded membranes, "rough" endoplasmic reticulum has many ribosomes attached to it. "Smooth" endoplasmic reticulum has no ribosomes attached to it and is the structure where fats (lipids) are made but both types of endoplasmic reticulum carry materials through the cytoplasm.
On the rough endoplasmic reticulum, it is rough due to the ribosomes that are on it. The Ribosomes create protein and send them into the endoplasmic reticulum. Ribosomes are made inside the nucleolus.
They both have a nucleus, cytoplasm Golgi Body, vacuoles, mitochondria, cytoskeleton, ribosomes, cell membrane and endoplasmic reticulum.
They are the ribosomes. They synthesize proteins in cell