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
Answer: Energy is the ability to do work and allows living things to perform all the functions necessary to live.
Answer:
The correct answer is "There are several mechanisms that explain why a hormone have different effects in different cells. These mechanisms include: multiple receptors for the same hormone, a single receptor coupled to different pathways and hormones interacting with receptors for other molecules".
Explanation:
Hormones are among the most versatile molecules of the body, responsible for different biological processes such as human growth, sex development and metabolisms. Hormones are responsible of these complex biological processes because they have drastically different effects in different cells. There are several mechanisms that explain why a hormone have different effects in different cells. These mechanisms include:
- Multiple receptors for the same hormone. For instance, there are multiple receptor for dopamine, a hormone and neurotransmitter responsible for different functions such as movement, memory, sleep and motivation.
- A single receptor coupled to different pathways. Most hormone receptors act with a cascade of signaling. This in consequence results in a single receptor interacting with different molecules having multiple effects.
- Hormones interacting with receptors for other molecules. One example is the action of one metabolite of progesterone named allopregnanolone. This metabolite interacts with GABA-A receptor, which gives it anxiolitic properties.
Bacteria and birds both are organisms
It depends on the individual reaction to lactose. first, some individuals are considered lactose intolerant meaning they lack enzymes that break down lactose into glucose and galactose. hence, if they digest dairy products they can have severe symptoms that will affect their health. however individual who aren’t lactose intolerant benefit from digesting lactose containing products because it improves the individuals health by providing the body with sufficient amount of energy when lactose is broken down to glucose and galactose. Also, consuming Foods in the Dairy Group provide nutrients that are vital for health and maintenance of the body. over all, it all comes down to how an individual will react to such decisions when eliminating lactose. If this decision outweighs the disadvantages then I agree with it however if it doesn’t I completely disagree
