To provide energy from the cell through the mitochondria
Passive transport<span> is a movement of </span>biochemicals<span> and other </span>atomic<span> or </span>molecular<span> substances across </span>cell membranes through <span>concentration gradients</span><span> without need of </span>energy<span> input. Unlike </span>active transport<span>, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in </span>entropy<span>. The rate of passive transport depends on the </span>permeability<span> of the cell membrane, which, in turn, depends on the organization and characteristics of the membrane </span>lipids<span> and </span>proteins<span>. The four main kinds of passive transport are simple </span>diffusion<span>, </span>facilitated diffusion<span>, </span>filtration<span>, and </span>osmosis.
Answer:
In eukaryotic organisms, nuclear DNA is known as the molecule of life because it contains the hereditary information required for encoding proteins. This information is contained in the nucleotide sequence and is divided into a set of genes that are transcribed in RNA molecules (especially messenger RNAs) which are collectively referred to as transcriptome. Subsequently, these mRNAs are translated into proteins that play diverse biological functions including gene regulatory roles, cell cycle control, metabolism, etc.
