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Temka [501]
3 years ago
14

Why do we describe the information contained in the nucleus as hereditary

Biology
1 answer:
sp2606 [1]3 years ago
7 0
The nucleus<span> is an organelle </span>found in<span> the center of a cell that serves to control the ... The </span>hereditary information<span> stored in the </span>nucleus<span> controls the cell's growth, reproduction, intermediary metabolism and protein synthesis.</span>
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B) A popular lab that can be performed by students
antoniya [11.8K]

Answer:

Enzyme catalase is affected by high temperatures

Explanation:

Enzymes are organic catalysts which are protein in nature therefore they are sensitive to changes in temperature. Most enzymes have an optimum range of temperature between 35-40°c.

As temperature is increased, the optimum temperature is reached where the rate of reaction is maximum. When beef liver is boiled, hydrogen peroxide is not broken down because higher temperatures denature enzymes making them non effective.

6 0
3 years ago
An action potential involves potassium ions moving ________ the cell and sodium ions moving ________ the cell.
Alecsey [184]

An action potential involves potassium ions moving <u>outside </u>the cell and sodium ions moving <u>inside </u>the cell.

<h3>how does it action potential work?</h3>

Neurons have a negative concentration gradient most of the time, meaning there are more positively charged ions outside than inside the cell. This regular state of a negative concentration gradient is called resting membrane potential. During the resting membrane potential there are:

  • more sodium ions (Na^+ ) outside than inside the neuron
  • more potassium ions (K^+ ) inside than outside the neuron

The concentration of ions isn’t static though! Ions are flowing in and out of the neuron constantly as the ions try to equalize their concentrations. The cell however maintains a fairly consistent negative concentration gradient (between -40 to -90 millivolts). How?

  • The neuron cell membrane is super permeable to potassium ions, and so lots of potassium leaks out of the neuron through potassium leakage channels (holes in the cell wall).
  • The neuron cell membrane is partially permeable to sodium ions, so sodium atoms slowly leak into the neuron through sodium leakage channels.
  • The cell wants to maintain a negative resting membrane potential, so it has a pump that pumps potassium back into the cell and pumps sodium out of the cell at the same time.

Learn more about action potential

brainly.com/question/6705448

#SPJ4

5 0
1 year ago
Which of the following is not true of integrin? Question 4 options: Integrin molecules serve as stable, permanent anchors that a
Misha Larkins [42]

Answer:

Integrin molecules serve as stable, permanent anchors that anchor a cell to the extracellular matrix.

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Integrins are transmembrane protein receptors that attach the cell cytoskeleton to the extracellular matrix (ECM) in animal cells. These glycoproteins (integrins) are highly dynamic heterodimeric molecules that anchor cells in their position and transduce signals into and out of cells. Integrin-ligand binding activates signaling pathways that are involved in fundamental cellular functions including, among others, organization of the cell cytoskeleton, cell migration, regulation of the cell cycle, etc.

5 0
3 years ago
Which is not a compound?
Allushta [10]
Hi! What are the possible answers?
6 0
3 years ago
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Identify the molecule that is produced during cellular respiration to power chemical reactions
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Answer:During the process of glycolysis in cellular respiration, glucose is oxidized to carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate).

Explanation:

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