Question

Срочно!Помогите пожалуйста! Дам 35 баллов.Биология.Решите задачу!Сколько бактерий образуется из одной за два часа при благоприятных условиях, если клетки делятся каждые 20 минут.Заранее благодарю)

Answer 1

Первые 20 мин 2 40 мин 4 1час8 80 мин 16 100мин 32 120 мин 64

Answer 2

Через 20 мин-2 шт
через 40 мин-4 шт
через час-8 шт
через 1.20 мин-16 шт
через 1.40-32 шт
через 2 ч-64 шт

Answer 3

Problem Analysis

To solve this problem, we need to determine the number of bacteria that will be formed from one bacterium in two hours, given that the cells divide every 20 minutes.

Solution

Since the cells divide every 20 minutes, we can calculate the number of divisions that will occur in two hours.

First, we need to convert two hours into minutes. There are 60 minutes in an hour, so two hours is equal to 2 * 60 = 120 minutes.

Next, we divide the total number of minutes (120) by the time it takes for one division (20 minutes) to find the number of divisions that will occur in two hours.

120 minutes / 20 minutes = 6 divisions

Therefore, one bacterium will undergo 6 divisions in two hours.

To calculate the total number of bacteria formed, we need to consider that each division results in two new bacteria. So, for each division, the number of bacteria doubles.

Starting with one bacterium, after the first division, we have 2 bacteria. After the second division, we have 4 bacteria. After the third division, we have 8 bacteria, and so on.

To find the total number of bacteria formed after 6 divisions, we can use the formula:

Total number of bacteria = 2^number of divisions

Substituting the value of 6 for the number of divisions:

Total number of bacteria = 2^6 = 64

Therefore, from one bacterium, 64 bacteria will be formed in two hours under favorable conditions.

Answer

From one bacterium, 64 bacteria will be formed in two hours under favorable conditions.

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