no they are nnot invisible they are visiuble because the y just arel o
The term "nucleus" can refer to different contexts, but in biology, it is still visible in cells under a microscope, particularly in eukaryotic cells where it houses genetic material. In astronomy, the nucleus is visible in comets, representing the solid core that releases gas and dust to form a visible atmosphere or tail when near the Sun. In physics, the atomic nucleus remains a fundamental concept in understanding atomic structure and nuclear reactions.
Muscle cells have visible projections called myofibrils, red blood cells lack visible projections due to their biconcave disc shape, and sperm cells have a visible projection called a flagellum which helps in motility.
Chromosomes are visible in the cell nucleus during mitosis and meiosis.
In plant or animal cells, during interphase, the nucleus is not undergoing division. The nucleus will be visible and the nuclear membrane will also be visible.
The hypothesis of observing onion cells under a microscope could be that the onion cells will have a distinct rectangular shape and contain a visible nucleus.
The largest, and most easily visible organelle found in MOST cells is the nucleus. It is large and dark staining, and quickly seen in a microscope. However, only eukaryotic cells have a nucleus. Prokaryotic cells don't have organelles at all.
The term "nucleus" can refer to different contexts, but in biology, it is still visible in cells under a microscope, particularly in eukaryotic cells where it houses genetic material. In astronomy, the nucleus is visible in comets, representing the solid core that releases gas and dust to form a visible atmosphere or tail when near the Sun. In physics, the atomic nucleus remains a fundamental concept in understanding atomic structure and nuclear reactions.
Prokaryotes are the cells which do not have a definite nucleus. While Eukaryotes are the cell who have a definitive nucleus which is visible because of a definitive nuclear membrane.
Was the nucleus visible in Lactobacilli? Why?
Muscle cells have visible projections called myofibrils, red blood cells lack visible projections due to their biconcave disc shape, and sperm cells have a visible projection called a flagellum which helps in motility.
No visible cytoplasmic granules are found in red blood cells, which lack organelles such as granules or a nucleus.
Chromosomes are visible in the cell nucleus during mitosis and meiosis.
In plant or animal cells, during interphase, the nucleus is not undergoing division. The nucleus will be visible and the nuclear membrane will also be visible.
The cells of eukaryotes will contain a nucleus.
The hypothesis of observing onion cells under a microscope could be that the onion cells will have a distinct rectangular shape and contain a visible nucleus.
no nucleus is INSIDE cells
Certain bacteria and viruses carry their DNA in little rings rather than in chromosomes, so don't have a distinct nucleus like larger organisms.