Question 6 of 10How do plant cells maintain their shape?
A. The nucleus secretes cell wall parts that cannot move.
B. The cell membrane determines the shape.
C. The endoplasmic reticulum is rigid.
D. Vacuoles create internal pressure that prevents the cell from
collapsing.

Answers

Answer 1

Answer: B. the cell membrane determines the shape

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Why do most organisms that die not leave a record of their existence

Answers

They leave no record of their existence because it's rare that fossils form. You need the right conditions in which the animal's remains are covered in silt, dirt, and rock layers in order for a fossil to form and therefore preserve the animal's remains in rocks. Otherwise, the animal's remains will be eaten by other animals or eventually rot away.

What does it mean to partition something?

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In neuronal communication, ________ involves moving a neurotransmitter from the synapse back into the axon terminal from which it was released.

Answers

Answer:

In neuronal communication, _reuptake_ involves moving a neurotransmitter from the synapse back into the axon terminal from which it was released

Reuptake is the reabsorption of a neurotransmitter by a neurotransmitter located along an axon terminal's plasma membrane (i.e., the pre-synaptic neuron at a synapse) or glial cell after performing its role of transmitting a neural impulse.

Decreasing the use of pesticides and herbicides can help agricultural sustainability. Please select the best answer from the choices provideda. True
b. False

Answers

Answer: A. True

Limiting or decreasing the use of harmful pesticides and herbicides would likely to help in agricultural sustainability. Though pesticides and herbicides kills pests that can destroy crops, this will also permanently harm the soil and even the crop itself. This may lead to a lesser harvest for the coming harvest season to come.

During the electron transport chain which process leads to the production of large amounts of ATP

Answers

Answer;

High-energy electrons pump hydrogen ions against the concentration gradient.

Explanation;

-The electron transport chain sets up a proton concentration gradient across the inner mitochondrial membrane, with more protons outside the membrane.

-As a result of this gradient, the protons are waiting to get across the membrane. This happens through the transmembrane protein ATP synthase, which uses the energy moving protons through its pore to add a phosphate to ADP, thus producing ATP.

During the electron transport chain, ATP synthase leads to the production of large amounts of ATP.

Further Explanation:

Electron transport chain mainly occurs in mitochondria. The electron transport chain sets up a proton concentration gradient across the mitochondrial inner membrane, with more protons outside the membrane. Due to this concentration gradient, the protons are going outside the membrane. This movement is possible due to transmembrane protein, ATP synthase.

The ATP is produced by the use of proton motive force this reaction is catalyzed by ATP synthase. This multiprotein synthase is also well-known as F0 F1 complex .The ATP molecule is synthesized when proton flow back from the inner membrane down the electrochemical proton gradient. ATP synthase mainly has two components F1 ATPase and F0 which is fixed in the inner membrane and contain alpha, beta and C unit.

As the electrons travel along the electron transport chain, energy is released which helps in the pumping of protons (ions) into the lumen from the stroma through the thylakoid membrane. A proton gradient is allows the movement of protons back to the stroma which in turn results in the formation of ATP through membrane-bound ATP synthase

Learn more:

Learn more about cell organelle brainly.com/question/5923583
Learn more about the diffusion brainly.com/question/1386629
Learn more about the plant brainly.com/question/862697

Answer Details:

Grade: High School

Subject: Biology

Chapter: Plant Cell

Keywords:

ATP synthase, membrane, alpha, beta, proton motive force, Electron transport chain, mitochondria, thylakoid membrane, stroma, energy, proton.

Which phase of a cell's life cycle is occurring when the chromatids are pulled apart and move to the opposite ends of the cell? A anaphase B interphase C metaphase D prophase