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Genrish500 [490]
3 years ago
8

You are observing diseased cells in a medical laboratory. Upon close inspection, you notice that the cells contain many food vac

uoles, yet the cells are dying of starvation. Which organelle is most likely to be the one malfunctioning within these cells?
Biology
2 answers:
ankoles [38]3 years ago
8 0
The organelle that could b malfunctioning is the mitochondria, which packages proteins and without protein for cells, the outcome is cell lysis, or destruction.
melamori03 [73]3 years ago
7 0

Answer:

The correct answer is "Lysosomes".

Explanation:

Lysosomes are organelles found in many cells that degradate biomolecules by the function of hydrolytic enzymes. Lysosomes are spherical vesicles, that work in numerous cellular processes such as energy metabolism and cell's repair. A cell that has a malfunction in its lysosomes will look for other options to replace they functions. The diseased cell observed in the laboratory synthesized vacuoles as an effort to survive from the malfunction of the lysosomes.

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In cells, __________ are proteins that are needed to lower the amount of energy required to start chemical reactions.
asambeis [7]
<span>In cells, enzymes are proteins that are needed to lower the amount of energy required to start chemical.</span>  

 Enzymes are biological catalysts which accelerate chemical reactions (reactions are millions of times faster than without them). Every enzyme has an active site which binds substrates and converts them into products. 
6 0
3 years ago
An example of negative feed back mechanism is when an increased blood levels of estrogen and testosterone will decrease the leve
ElenaW [278]

Answer:

The correct answer is - True.

Explanation:

The negative feedback loop of the endocrine system is that when a hormone is inhibited by its own mechanism or its products. The negative feedback mechanism in the blood is when the level of testosterone and inhibin inhibit the release of the GnRH, LH, and FSH. The low level of GnRH, LH, and FSH affects spermatogenesis and ovulation in males.

In females, the high levels of estrogen and the progesterone exhibit the negative feedback hormone prevents LH and GnRH production by acting on the hypothalamus and inhibit ovulation.

Thus, the correct answer is - True.

6 0
3 years ago
Which of the following is not a natural cause of extinction?
dedylja [7]

Answer:

Introduction of Non-native species would be the answer. ( B )

Explanation:

Now let's break it down.

A. Competition due to overpopulation

Competition due to overpopulation, as competition of resources rises, species will fight among each other, and slowly, population will go down. But I don't see the reason of why it would cause an extinction... perhaps a decrease of population. See, once populations starts decreasing, resources will increase. And ONCE resources increase, populations starts increasing, and there goes competition. Resources decreases, populations decreases, and the whole process repeats. So I'm not quite sure whether it will cause extinction of a species.

B. Introduction of Non- native species.

So what does it mean by Non-native species?

It means that species that have no effect and doesn't exist in the ecosystem. So that will definitely not affect the population whatsoever.

C. Catastrophic Events

Well, common sense. Many people died of tsunamis, tornado and other natural disasters every year. Too many disasters can cause the population to cease.

D. Disease

This we can relate, especially the Coronavirus. Many humans died of the deadly virus. Same goes to animals. If a disease gets too deadly, population will decrease and drive the species to extinction.

So, the Answer would be B.

<h2>HOPE THIS ANSWER HELPED :)</h2>
3 0
3 years ago
Spherocytosis is a human blood disorder associated with a defective cytoskeletal protein in the red blood cells (rbcs). what do
Alex17521 [72]
In spherocytosis, there is a defect in the membrane proteins of the red blood cells, specifically ankyrin and spectrin. These membrane proteins contribute to the biconcave shape of red blood cells therefore the loss of these proteins will lead the red blood cells to lose its biconcave shape--leading to abnormally shaped red blood cells (spheres) hence the name. This can lead to premature destruction of red blood cells and jaundice due to hyperbilirubinemia. Spherocytes do not hold oxygen and carbon dioxide well as spherocytes have a decreased surface area.
4 0
3 years ago
Which type of movement is characteristic of the articulation between the tibia and fibula with the talus?
jonny [76]

Solution:

The function and mobility of each joint depends on its anatomical design. Joints that permit no movement or slight movement are common in the axial skeleton where basic structural support and protection  is expected. Joints that are freely moveable are common in the appendicular skeleton where mobility is required. Is known as articulation.

The tibial collateral ligament reinforces the medial side of the knee joint and the fibular collateral ligament reinforces the lateral side of the knee joint. Two popliteal ligaments reinforce the posterior side of the knee joint.


7 0
3 years ago
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