What form a spindle shaped structure of protein fibres on which the chromosomes move during nuclear division?

1 answer:

5 0

Function of centrioles

An organelle that forms a spindle-shaped structure of protein fibers on which the chromosomes move during nuclear division are called the centrioles. Centrioles are part of the animal cell organelles. Hence, they are a small part of the microtubules organized and set in a particular course. Microtubules include 9 sets. Centrioles contain a cylindrical structure, packed with protein which is described as tubulin. Found mostly in eukaryotic cells beside the nucleus.

You might be interested in

A parent is concerned that the parent's child might suffer from attention deficit hyperactivity disorder (ADHD). The parent brin

slava [35]

Answer:

The child may exhibit the following behavior during the evaluation: When the evaluators assign a task, it is difficult for the child to organize or finish the task, pay attention to details and follow instructions or conversations. because the child is easily distracted.

Other symptoms is that the child may not be sitting for a long time, and the child start running, jumping or climbing around the room.

6 0

3 years ago

In the Cori cycle, when glucose is degraded by glycolysis to lactate in muscle, the lactate is excreted into the blood and retur

Flauer [41]

Answer:

The correct answer is A. The statement is true.

Explanation:

Muscle obtains ATP from glycolysis. When exercise conditions are anaerobic, glucose is degraded to lactate. Lactate is exported into the circulation and is taken up by the liver. The liver synthesizes glucose again from lactate via the gluconeogenic pathway. These two metabolic pathways that allow the coupling of the function of two tissues is what is known as the Cori cycle. The energy cost is 4 P bonds / each glucose that travels both glycolytic-gluconeogenic pathways.

6 0

3 years ago

When a red blood cell is placed in a hypertonic solution, which will occur?

Sergeu [11.5K]

If a red blood cell is placed in a hypertonic solution, the cell would shrink.

Hypertonic solution means that the solution has a lower water potential than the other side (which is the cell's cytoplasm in this case), and by that, water molecules would have a tendency to flow from a region of higher water potential to a region of lower water potential. This movement of water molecules is called osmosis. But note that a semi-permeable membrane (a membrane which can decide what substances can go in and out, the cell membrane is an example) has to be present in osmosis, or else the movement may be regarded as diffusion.

As the water molecules flowed away from the red blood cell cytoplasm, the cell loss so much water that the membrane has nothing much to hold and thus the cell shrinks.

5 0

3 years ago

How can we know whether a tree is alive or not?

solong [7]

$\huge\red{\underline{\overline{\tt\:Añswér}}\mid}$

One of the best ways to determine if a tree or any plant is dead is the tree scratch test. Just beneath the dry, outer layer of bark in a tree's trunk lies the cambium layer of bark. In a living tree, this is green; in a dead tree, it is brown and dry

Follow me!!

5 0

3 years ago

Read 2 more answers

When a firearm is in close proximity to the body—fired from 18 inches away or less—the resulting marks on the body or clothing a

nignag [31]

When a gun is fired at a distance not more than 18 inches away a powder tattoo is created on the skin or on the fabric of the victim. The burning powder is incorporated into the material. Oftentimes, investigators located powder tattoos to find the entry wound.

7 0

3 years ago