The membrane of an organelle or cell is comprised of proteins circulating in a phospholipid bilayer.
The proteins in membranes are the ones which can facilitate chemical reactions.
Have a goed day
Bog soils are type of soils which are <span>poorly drained type that are found on top of peat ( topmost coal) and under a swamp environment. Although, these types are watery in nature, there is still a high percentage of organic matter in them like ordinary soils. Hence the answer is B. organic matter</span>
Answer:
D. Nucleic acids attach to the bases in the DNA.
Explanation:
Transcription begins when an enzyme called RNA polymerase is added to the DNA template and begins a new chain a new chain to produce complementary RNA.
During the RNA synthesis transcription takes place, then the cap and tail is added and then splicing occurs.
RNA polymerase moves from the 3' end to the template strand creating the RNA-DNA double helix or similar the base sequences. This makes a chain with each sugar by the set of bonds called phosphodiaster linkage. Then, the enzyme unwind the DNA and begins the synthesis of RNA.
Therefore, D. Nucleic acids attach to the bases in the DNA.
Answer
secondary consumers
Explanation
Secondary consumers are organisms which eat or depend on primary consumers. Primary consumers are those organisms that feed on plants, they are mainly herbivores and occupy second trophic level.-
Scavengers are organisms that mostly consume decaying organisms or matter, such as meat or rotting plant material. They are types of carnivores, which feed on meat, however, unlike carnivores which hunt and kill their prey, scavengers consume dead animals ad plants.
Secondary consumers occupy the third trophic level and include scavengers, other carnivores, and omnivores (consume both plants and animals).
Answer:
1) Hiatal hernia is the disorder of this 26 year old business executive. Hiatal hernia occurs when upper part of stomach pushes through an opening in the diaphragm, and up into the chest. THis opening is called a esophageal hiatus or diaphragmatic hiatus. It is basically a protrusion of the upper part of stomach into the chest through a tear on the chest through a tear or weakness in the diaphragm. The patient presents with :
- Chest pain
- Severe hurtburn
- Abdominal pain
- Frequent burping
- Difficulty in swallowing
- Throat soreness
2) Adequate lower esophageal pressure at the lower esophageal sphincter normally prevent gastric reflux into the esophagus when lying down or bending over.
3) As M3 receptors (parasympathetic) are distributed at the lower esophageal sphincter, cholinergic agonist activates these receptors and increases contraction thus rsulting in a decrease in contraction and preventing Gastroesophageal reflux. Similarly the anticholinergic are avoided because they will relax the LES and thus GERD will increase.
4) H2 antagonists are recommended because they decrease the acid secretion especially at night by blocking H2 receptors.
5) Elevation of the head of the bed recommended in order to encourage the gravitational flows of the contents in stomach toward the pyloric end.
6) Normal Stomach pH = 3-5
Normal esophageal pH = 6-7
pH at Lower esophagus in gastroesophageal patient = 3-5
pH of stomach in patient of GERD = 3-5 (same as that in normal)
