Answer:
When hydrogen peroxide is added to a chicken liver sample exposed to lemon juice the chemical reaction will be slower and appear some bubbles within the first minute (option B).
Explanation:
The liver contains an enzyme called catalase, whose function is the degradation of hydrogen peroxide (H₂O₂), an intense reaction that produces gas and heat. <u>The activity of this enzyme must occur at an appropriate pH, so changes in pH can affect the activity of catalase</u>.
- Under normal conditions, when a liver sample is exposed to H₂O₂, bubbles and foam appear in the sample as a result of the catalase reaction.
- When the chicken liver sample is subjected to the acidic lemon juice, the reaction will occur, but more slowly.
This is because the activity of the catalase enzyme, present in the liver, continues to occur —although it decreases— and will form few bubbles over a longer period of time.
The other options are not correct because:
<em> A. At a lower pH, the reaction will not form many bubbles.
</em>
<em> C. Even if the reaction is minor, and produces very few enzymes, it will always occur.
</em>
<em> D. Although the catalase/H2O2 reaction produces heat, it is impossible for the liver to catch fire and cause evacuation from the school, even less so with a reaction whose speed has been slowed down.</em>
Answer:
to determine that electric beams in cathode ray tubes were actually made of particles
Explanation:
just did it;)
Cell differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression. Gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a cell functions.
This would be called a D. Sinkhole. Sinkholes occur because groundwater washes and deteriorates at limestone under the surface. This leads to underground gaps. Once the pressure becomes high enough, the sinkhole collapse from gravity leaving a dent similar to potholes in the road.
Answer:
Yes!
Explanation:
It is stated in the Unified Cell Theory by a Botanist named Schleiden and a Zoologist named Schwann that all Living Things (organisms) are composed of 1 or more cells. The cell is the basic unit of life.
