All categories

3 years ago

How does heat flowing through Earth's layers contribute to the formation of an ocean basin?

Biology

1 answer:

fredd [130]3 years ago

5 0

Answer:

Moreover, the way that this works is that convection currents in the mantle causes tectonic plates to move when material near the Earth's core rises, and colder mantle rock sinks. Hot magma wells up at the ridges, forming new ocean crust and shoving the plates apart.

Explanation:

You might be interested in

explain the role of the digestive system, the respiratory system and the urinary system in the removal of waste. how do these wa

Bezzdna [24]

The function of the digestive system is digestion and absorption.Digestion is the breakdown of food into small molecules, which are then absorbed into the body. The digestive system is divided into two major parts: The digestive tract (alimentary canal) is a continuous tube with two openings: the mouth and the anus.

7 0

3 years ago

Which of the following elements is a transition metal?

harina [27]

Answer:

Nickel, Ni, atomic number 28

Nickel, Ni, atomic number 28 Is a transition metal. It falls in the "d" region. 4 of Period, group 10.

Calcium and magnesium are alkaline earth metals, and antimony is a metal in the nitrogen group.

5 0

3 years ago

In the lab, metabolic poisons can be used to study ATP synthesis and oxygen consumption. Many of these poisons have – or have ha

ivanzaharov [21]

Answer:

Electron transport inhibitors: Cyanide, Rotenone

Uncoupling agents: trifluorocarbonylcyanide phenylhydrazone (FCCP)(FCCP)

ATP synthase inhibitors: Oligomycin

Transport inhibitors: Bongkrekic acid

Explanation:

Electron transport inhibitors: Cyanide, Rotenone

Cytochrome oxidase also known as complex IV in the electron transport chain, carries electrons from cytochrome c to oxygen. It is a large enzyme having 13 subunits. Subunit 1 contains two heme groups , a and a3. Electrons are tranferred from heme a to oxygen bound to heme a3. The reaction of cyanide with heme a3 blocks this process of eleron transport

.Rotenone blocks electron transfer at NADH dehydrogenase (NAD−Q(NAD−Q oxidoreductase) by preventing electron transfer from Fe-S center to ubiquinone.

Uncoupling agents: trifluorocarbonylcyanide phenylhydrazone (FCCP)(FCCP)

The transfer of electrons from NADH through the respiratory chain to molecularoxygen is coupled to proton pumping from the inner mitochondrial matrix to the intermembrane space. This generates a proton motive force which is utilized in ATP synthesis. Trifluorocarbonylcyanide phenylhydrazone (FCCP)(FCCP) increases membrane proton permeability, causing protons to leak back into the mitochondrial matrix, thereby uncoupling the processs of ATP synthesis and proton flux.

ATP synthase inhibitors: Oligomycin

ATP synthase is the enzyme rensponsible for ATP synthesis. It has two functional domains,: F₁ and F₀. Oligomycin binds to F₀ and blocks the proton channel preventing rotation of the F₁ subuni, thus, preventing ATP synthesis from ADP.

Transport inhibitors: Bongkrekic acid

Adenine nucleotide translocase is a transport protein that transports free ADP from the cytoplasm into the mitochondrial matrix, while ATP produced from oxidative phosphorylation is transported from the mitochondrial matrix to the cytoplasm o the cell.

Bongkrekic acid inhibits Adenine nucleotide translocase, thus preventing ATP from leaving the mitochondria and starving cells of needed energy.

5 0

3 years ago

Global climate change is the result of increasing levels of carbon dioxide, methane, and other greenhouse gases in Earth's atmos

jok3333 [9.3K]

Answer:

Explanation:

Ocean acidification is occurring because excess carbon dioxide (CO2) in the atmosphere is being absorbed at the surface of the ocean at an increasing rate. This excess CO2 results in more hydrogen ions, which increases the acidity of the ocean.

8 0

3 years ago

A diagram shows two models for the tempo of speciation. Model a shows a punctuated model. The species changes the most as it bra

Sloan [31]

Answer:

Species accumulate their unique features rapidly, then change little for the duration of the species.

Explanation:

8 0

3 years ago

Read 2 more answers