All categories

3 years ago

The link between a first messenger and a second messenger in a cell that responds to peptide hormones is usually

Biology

1 answer:

motikmotik3 years ago

4 0

Answer:

A G- protein

Explanation:

G proteins are molecules involved in signal transduction. They are often referred to as guanine nucleotide binding proteins. They bind to signal molecules at the exterior of the cell and are responsible for transmitting the signals from the exterior of a cell to the inside of the cell, which then results to a cellular response. G proteins are generally activated by a set of trans-membrane receptors called G protein coupled receptors and then deactivated by a set of proteins called the Regulator of G protein signaling (RGS proteins). In regulation, G proteins bind to GTP when they are active, but bind to GDP when they are inactive.

You might be interested in

In what ways are the features of a plant living in water different from a plant living on land ?

lesya692 [45]

Answer:

Earth, both on land and in water. Wherever they

live, plants provide food and oxygen to the

creatures that live nearby – including humans!

In this activity we will examine both a

terrestrial (land) plant and an aquatic (water)

plant. They have many things in common, but the

ways they get air, food and water change along

with the environments in which they live.

Explanation:

7 0

3 years ago

If humans change the function or equilibrium of one of Earth's systems, this will not change

joja [24]

Answer:

False.

Explanation:

All of the things found in the Earth system can be categorized into four (4) main categories and these includes;

I. Land: this subsystem forms a sphere which is generally referred to as litosphere.

II. Water: this subsystem forms a sphere which is generally referred to as hydrosphere. It comprises of landforms such as mountains, valleys, plateaus, ridge, rocks, etc.

III. Air: this subsystem forms a sphere which is generally referred to as atmosphere. This sphere comprises of gases such as oxygen, carbon dioxide, nitrogen, etc.

IV. Living organisms: this subsystem forms a sphere which is generally referred to as biosphere. It comprises of all living things such as humans, animals and plants.

If humans change the function or equilibrium of one of Earth's systems, this will significantly change the function or equilibrium of all of Earth's systems. Consequently, these changes result in environmental phenomenon such as volcanoes, earthquakes, tornadoes, wildfire, etc.

6 0

3 years ago

What type of epithelium has dome shaped on the apical surface?

Levart [38]

Answer:

Transitional epithelium has dome shaped cells on the apical surface.

4 0

3 years ago

Read 2 more answers

Mrs. F has a history of mild heart problems, but she has been admitted to the medical-surgical floor for management of her liver

Pachacha [2.7K]

Answer:

Option (B).

Explanation:

Liver is an important organ that regulates the metabolic pathway of the body and helps in the process of digestion. The improper functioning of liver can cause yellowish skin, edema and high blood pressure.

Mrs F medical condition clearly describes the improper functioning of liver. The liver helps in the formation of bile juice. Bile is a soapy compound that helps in the emulsification of lipids.

Thus, the correct answer is option (B).

4 0

3 years ago

Read 2 more answers

Transport proteins in the cell membrane play an important role in cell transport by

Kaylis [27]

Answer: Membrane transport proteins are specific and selective for the molecules they move, and they often use energy to catalyze passage. Also, these proteins transport some nutrients against the concentration gradient, which requires additional energy.

Explanation:

6 0

3 years ago