The herbaceous stem is composed of vascular bundles (xylem and phloem) arranged in a circle around a central core of spongy tissue made up of parenchyma cells, called the pith. Surrounding the vascular bundles is a layer known as the cortex, which varies in thickness from species to species.
Answer:
. The NAD+ pool in the mitochondria and cytosol are separated by the mitochondrial membranece
Explanation:
The location of these 2 enzymes provided an insight to this:
.
Pyruvate dehydrogenase is located in the MATRIX of mitochondrial,
The Glyceride 3 phosphate is located in the CYSTOSOL.
These 2 locations are separated by the double intramembranes of the mitochondrial.Thus the separation cut the mitochondrial and cytosolic acess to the same Co enzyme NAD pool.
Therefore it ensured no competition between the same enzymes for the same NAD.pools.
It is important to note that: shuttle mechanisms allow the tranfer of reduced equivalents from one nicotanimide coenzymes to another.
Answer:
They are antiparallel
Explanation:
They are antiparallel because one strand of 3' faces the end of 5' of another strand and 5' end of one strand faces 3' end of another strand. Which indicate that 5 phosphate group faces the end of 3 hydroxyl group and they are of opposite directions to each other because it has opposite polarity with each other .
The correct answer is (b) Abyssal plains
The flat expanse of ocean floor at the bottom of the sea is called abyssal plain which accounts for about 79% of the sea floor worldwide. It is the smoothest surface on the planet with less than 5 feet of vertical variation, that is most common in Atlantic.
Example: Largest Abyssal plain is Canary Abyssal