Yes, they have a nuclear membrane. Because they are very simple eukaryotic organisms, they are particularly attractive for genetic and cell biology research, as results can sometimes be generalized to more complex creatures (like humans). read more
Yeast is considered as eukaryotic organism due to its enclosed nuclear body inside a membrane (a nuclear membrane) and possession compartmentalised organelles such as golgi body, mitochondria, lysosomal vesicles etc. programmed for specific functions. read more
The cells of these yeast are surrounded by a rigid polysaccharide capsule, which helps to prevent them from being recognised and engulfed by white blood cells in the human body. Yeasts of the genus Candida, another group of opportunistic pathogens, cause oral and vaginal infections in humans, known as candidiasis. read more