Nucleus: The nucleus is not a particle like the others mentioned; rather, it is a composite structure made up of protons and neutrons. Therefore, its mass varies based on the number of each particle it contains but it will always be significantly more massive than a single electron.
[FREE] Which choice is the smallest in mass? A. neutron B. nucleus C ...
Platelets contain mitochondria, lysosomes, and granules, but they do not have a nucleus. These components are essential for their role in blood clotting and tissue repair. Understanding these components helps illustrate the functionality of platelets in the circulatory system.
When an unstable nucleus undergoes gamma decay, it releases energy in the form of gamma radiation, leading to a more stable nucleus without changing its mass or atomic number. This emission helps in alleviating the energy imbalance, promoting stability. Therefore, gamma decay significantly contributes to the nuclear stability of an atom.
Nucleus - Contains DNA and is where mRNA is transcribed, but protein assembly occurs at ribosomes. Cytoplasm - The medium where ribosomes function and where other components of protein synthesis are found.
The nucleus is the structure unique to eukaryotic cells, distinguishing them from prokaryotic cells, which do not have a membrane-bound nucleus. While DNA, cell membranes, and ribosomes are found in both cell types, the nucleus plays a crucial role in housing and managing genetic material. Understanding this difference is key to comprehending cellular biology.
The number of chromosomes in an endosperm nucleus of an onion (allium) would be 24. This is because the endosperm is a result of a process called double fertilization. Generally in angiosperms - or flowering plants like the onion - one sperm fertilizes the egg forming a 2n zygote, and the other sperm fertilizes the central cell to form a 3n endosperm. Since the onion's sporophyte cells have 16 ...