The organelle described in this problem is the MITOCHONDRIA.
The Mitochondria is found in almost all eukaryotes. It is a double-membrane bound organelle whose outer layer is smooth while the inner layer is highly folded.
Its main function is to produce energy from the oxidation of glucose substances and release ATP.
Answer:
NO!!
Explanation:
During fertilisation, 1 gamete from each parent combines to form a zygote. Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA
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:
Some major functions of animals are obtaining food and oxygen, keeping internal conditions stable, moving, and reproducing.
Explanation: