These sunflower seeds have sprouted and are growing tall The seeds need energy to grow. The seeds can make their own food

Using the bar graph, determine which planet is four times (4X) as far from the Sun as Earth is.

Serjik [45]

it would be B Neptune since it 2.793 billion mi from the sun and 150 million km from earth

8 0

3 years ago

What are three techniques that can be used to show that the electron transport chain is found on the matrix side of the inner mi

bonufazy [111]

Answer:

Explanation:

Step 1: Generating a Proton Motive Force

The hydrogen carriers (NADH and FADH2) are oxidised and release high energy electrons and protons

The electrons are transferred to the electron transport chain, which consists of several transmembrane carrier proteins

As electrons pass through the chain, they lose energy – which is used by the chain to pump protons (H+ ions) from the matrix

The accumulation of H+ ions within the intermembrane space creates an electrochemical gradient (or a proton motive force)

Step Two: ATP Synthesis via Chemiosmosis

The proton motive force will cause H+ ions to move down their electrochemical gradient and diffuse back into matrix

This diffusion of protons is called chemiosmosis and is facilitated by the transmembrane enzyme ATP synthase

As the H+ ions move through ATP synthase they trigger the molecular rotation of the enzyme, synthesising ATP

Step Three: Reduction of Oxygen

In order for the electron transport chain to continue functioning, the de-energised electrons must be removed

Oxygen acts as the final electron acceptor, removing the de-energised electrons to prevent the chain from becoming blocked

Oxygen also binds with free protons in the matrix to form water – removing matrix protons maintains the hydrogen gradient

In the absence of oxygen, hydrogen carriers cannot transfer energised electrons to the chain and ATP production is halted

4 0

3 years ago

ASAP

loris [4]

I believe that the answer would be heat.
In reactions that are exothermic, heat energy is released from the energy stored in the chemical bonds of the reactants.

I do not think that electrochemical reactions necessarily "release" electricity they merely transform chemical energy into electric energy.

Answer: heat

Any questions or concerns?

8 0

4 years ago

. Which graph best shows the general relationship

Andre45 [30]

The graph that best shows the general relationship between the temperature of a gas and the speed of the molecules in that gas is B.

<h3>What is kinetic energy?</h3>

Kinetic energy is the energy that an object or particle has as a result of its motion. When work transferring energy, is done on an object by applying a net force, the object accelerates and goes under kinetic energy.

The missing graphs are attached as image.

The average kinetic energy of gas molecules is

$K=\frac{3}{2} k_{B}T$