The basic unit of life is the cell
Answer:
The hydrophobic core of the membrane does not allow the charged particles to pass through it.
Explanation:
The inner core of the membrane is made up of hydrophobic fatty acid tails of phospholipids. Due to this, some substances such as large, charged and polar particles cannot cross the membrane. This is why Na+ with a positive charge cross the membrane with the help of transport proteins only. On the other hand, molecular oxygen (O2) has a small structure and does not carry any charge. Therefore, it can cross the membrane without any help of transport proteins.
Answer:
The human genome is a complete set of nucleic acid sequences for humans, encoded as DNA within the 23 chromosome pairs in cell nuclei and in a small DNA molecule found within individual mitochondria. These are usually treated separately as the nuclear genome and the mitochondrial genome.
The act of illegally killing an animal is poaching. The very prominent subject of the poaching is Rhino. Due to extensive illegal hunting, some species of which are now virtually extinct. However there is poaching of many other animals, like poaching of elephant which is poached for the ivory in their tusks.
1. prokaryote they have no nucleus unlike eukaryotes 3.bacteria
