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Debora [2.8K]
1 year ago
9

Name each numbered stage in the plant cell cycle diagram:

Biology
1 answer:
zheka24 [161]1 year ago
4 0

Answer:

1. Metaphase

2. Prophase

3. Telophase

4. Interphase

5. Interphase

6. Interphase

7. Anaphase

8. Interphase

9. Telophase

10. Metaphase

11. Interphase

12. Interphase

13. Interphase

14. Interphase

15. Prophase

16. Interphase

17. Metaphase

18. Anaphase

19. Interphase

20. Interphase

21. Prophase

22. Interphase

Explanation:

The cell cycle is divided into two main divisions. The Interphase ad the M phase or the Mitotic phase.

Throughout Interphase, the cell is not dividing yet, but it is preparing to divide. It synthesizes the nutrients it will need, and grows in preparation to become two cells. This is actually the phase the cell spends the longest time.

Mitotic phase is when the cell starts to divide. It is separated into:

Prophase:

In this phase the chromosomes are condensed and mitotic spindles start to form. These spindles are made up of microtubules that will help later on to split the chromosomes. The nuclear membrane disappears so that the chromosomes will be free to move.

Metaphase

This phase is marked by the alignment of the chromosomes in the middle of the cell. They line up and you will find the asters at the opposite ends of the cell, where the microtubules stem from, attaching themselves to the center of the chromosomes, which we call the kinetochore.

Anaphase

In this phase you will see that the chromosomes are separated by the spindle fibers and are pulled at opposite ends of the cell. The cell then becomes longer by the other spindle fibers that are not attached to a chromosome.

Telophase

This phase is the end phase. The two sets of chromosomes are then enclosed by new nuclear membranes forming two nuclei and other cellular structures just as the cells are about to separate completely. As the two new cells move further apart, in plant cells a cell plate forms, dividing the two cells. The movement of the two cells splitting apart is called cytokinesis and it happens just as mitosis is about to end.

Attached is a picture of the cell cycle of a plant cell.

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Inflammation of the foreskin and the head of the penis<span />
8 0
1 year ago
Cell bodies of sensory neurons may be located in ganglia lying outside the central nervous system. Cell bodies of sensory neuron
AlekseyPX

Answer:

True

Explanation:

Sensory neurons are the neurons present in the nerves which can convert the external stimuli into an electrical signal and can transmit the signals from the organs to the central nervous system.

The structure of sensory neuron in pseudounipolar that is at one end it has dendrites and another end transmits the signals to the CNS. The cell bodies  (nucleus) of these sensory neurons are located in the structures called ganglia located outside the CNS.

Thus, True is the correct answer.

7 0
2 years ago
The biomes known for supporting herds of grazing animals are: temperate grassland and temperate deciduous forest. temperate gras
harina [27]
<h2>Savanna & tropical rainforest</h2>

Explanation:

  • Savanna is a grassland biome which is found South America .it is a type of natural biome which is changes during seasonal pattern for examples- elephants,cheetahs, wildebeest
  • It is here and there found in mild atmospheres, for the most part in zones that are transitional zones among grassland and forests.
  • Tropical rainforests are forests in the tropics that get more than 100 crawls of precipitation every year.
  • This unbelievable species extravagance is expected to a great extent to the blend of a tropical atmosphere and high, all year precipitation, which gives ideal developing conditions to the biggest number of plant species.
  • The warm, wet conditions in the tropical rainforest cause quick disintegration of any waste, and on the grounds that daylight and water are abundant, any supplements discharged into the dirt are quickly utilized by the quickly developing vegetation, leaving the dirt incredibly poor thinking about the high efficiency of the biome as long as the backwoods stays flawless, supplements will rapidly burn through the environment.

4 0
2 years ago
Normally, when food is placed in the mouth of any animal, the salivary glands start releasing saliva to help with chewing and di
frosja888 [35]

Answer:

An unconditioned response.

Explanation:

Pavlov was the process of studying salivation in dogs as a part of a research program on chewing and digestion. This is known as a normal reflex that is under personal choice or control and also called an unlearned evolutionary response.

In terms of Pavlov's analysis of learning, Pavlov built a device that would help to accurately measure the amount of saliva produced by dogs. In the case of Pavlov dogs, the food is called as the stimulus and salivation is called as a response.

3 0
2 years ago
Why do some cells divide faster than others and some cells do not divide after they are formed? Into which group does cancer fit
Nuetrik [128]

Skin cells, divide in a continuous manner that makes new skin cells to replace the skin cells we lost. Cells regulate their division by cyclins. Some cells divide faster when it supposed to stop dividing and this will lead to cancer disease.

<u>Explanation:</u>

The process of cell division occurs for many reasons. A single cell is divided into two which in turn they will be divided into four and so on. This corresponds to the process of cell division and cell reproduction. Cell division is  an unique characteristics in human beings. Interactions between signaling proteins produces checkpoints in the cell cycle to ensure that cells do not divide at improper times.

A protein named Cyclins plays a major role in the determination and the regulation of the cell division process. The division that occurs in the cell can be regulated by the this protein type. They acts as a switch for controlling the cell division process. They will signal the cells when to divide and when to stop. When any cell continues to divided even after it is signaled to stop they may lead to a disease called cancer.   These are different form the normal cells because they will be having their own growth factors that controls their growth and they will lose the normal controls on the cell cycle.

4 0
1 year ago
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