Answer:
The reason why, in cold temperatures and depending on the type of fatty acids, the phospholipid bilayer is less or more fluid is due to the different molecular interactions that occur between the tails of both types of fatty acids. the unsaturated - which determines the fluidity of the cell membrane.
Explanation:
<em>Temperature and saturation of fatty acid tails</em><em> are two factors that affect the </em><em>fluidity of the phospholipid bilayer</em><em> in cell membranes.</em>
Under normal conditions, low temperatures decrease the fluidity of the phospholipid bilayer, since it decreases the kinetic energy and increases the molecular interactions, which increases the stiffness.
However, unsaturated fatty acids - those that contain double bonds in their molecules - have a configuration that allows their tails to be more separated in their arrangement in the bilayer, which avoids the increase in molecular interactions and maintains to a certain extent the membrane fluidity, despite low temperatures.
Answer:
mechanical weathering and chemical weathering
Explanation:
Weathering is the physical disintegration and chemical decomposition of rocks to form sediments and soils.
Both mechanical and chemical weathering are responsible for the process.
Mountain ranges are worn down with time due to the action of weathering.
- Rocks can be broken down over time with prolonged action of mechanical weathering via thermal expansion and contraction, alternate wetting and drying, pressure release etc.
- Chemical weathering usually by the action of water dissolves rocks.
Answer:
Transcription is the second step in central dogma of molecular biology. First step is replication, second is transcription, and third is translation.
In the transcription phase, DNA, which is already replicated, is transcribed to mRNA which is required to make proteins in the translation phase. The root words say it is a combination of "across" and "write". This means that DNA is going to be written in a new language "mRNA". So, this term has been used in biological process because it is the re-writing across the whole DNA to make a completely new strand of mRNA.
Hope it helps.
Answer:
chromosome
Explanation:
A chromosome consists of entire set of genes with in an organism’s total population.
DNA with is a chromosome is arranged in a discrete short and wide units. A chromosome consists of millions of DNA base pairs which consists of large number of genes. The chromosome structure comprises of double helix DNA wrapped around proteins. DNA with in chromosome provide basis for chromosome synthesis.
Answer:
I'm not 100% sure but I'm positive the answer was or is Methane, correct me if I'm wrong!
