The capsid surrounds the virus and is composed of a finite number of protein subunits known as capsomeres, which usually associate with, or are found close to, the virion nucleic acid
Answer: c. proteasome
Explanation:
Proteasomes are extremely important multi-catalytic proteases and are involved in various cellular functions. The proteasome is an essential component of eukaryotic cells and is responsible for the ATP-dependent proteolytic degradation of most cellular proteins. They are present in the nucleus and cytosol and can represent up to 1% of total cell proteins. Proteasomes generally degrade proteins to small peptides, most of which are rapidly hydrolyzed by cytoplasmic exopeptidases. It catalyzes the rapid degradation of many enzymes, regulatory proteins, and eliminates abnormal proteins resulting from mutation or damaged proteins. The inability of this cellular organelle can lead to neurodegenerative diseases, such as Parkinson´s disease.
A Pseudopodia is a temporary protrusion of the surface of an amoeboid cell for movement and feeding.
Enzymes are considered catalysts, they help reactants and can be used over and over
Answer: C) The cell can produce energy for cellular functions.
Explanation: A cell is the functional unit of all living things. Cells are made up different parts with specialized functions. Cells take in nutrients from food and convert them to energy which is needed for other cellular functions. The specialized functions of the different parts of a cell can only be carried out if sufficient energy is provided by the cell. The functions of different parts of a cell include reproduction, absorption of nutrients and removal of substances from the cell, protein synthesis but none of these functions will be carried out if energy is not supplied.
