Question

1. Рассмотрите внимательно предложенные формулы цветков. Исходя из формул, опишите строение цветков. Укажите, к какому классу относятся растения с такими цветками. 1.1. Растение 1 *Ca(5)Co(5)A5G1 1.2. Растение 2 *P3+3A3+3G1

Answer 1

Ответ:

Растение 1 - семейство паслёновые, класс двудольные

Цветок правильный, 5 сросшихся чашелистиков, 5 сросшихся лепестков, 5 тычинок, 1 пестик

Растение 2- семейство лилейные, класс двудольные

Цветок правильный, простой околоцветник 3+3 сегмента, тычинок 3+3, пестик 1

Answer 2

Structure of Flowers and Classification of Plants

Flowers are the reproductive structures of angiosperms, which are a group of plants that produce seeds enclosed within a fruit. The structure of flowers can vary among different plant species and is often classified based on the arrangement and number of floral organs, such as sepals, petals, stamens, and pistils.

Let's analyze the given formulas and describe the structure of the flowers, as well as the class of plants to which they belong.

# 1.1. Plant 1: *Ca(5)Co(5)A5G1

The formula *Ca(5)Co(5)A5G1 represents the structure of the flower in plant 1. Let's break down the formula:

- C: This indicates the number of sepals in the flower. In this case, there are 5 sepals. - a: This represents the arrangement of sepals. However, the given formula does not specify the arrangement. - Co: This indicates the number of petals in the flower. In this case, there are 5 petals. - A: This represents the number of stamens (male reproductive organs) in the flower. In this case, there are 5 stamens. - G: This indicates the number of carpels (female reproductive organs) in the flower. In this case, there is 1 carpel.

Based on this formula, the flower of plant 1 has 5 sepals, 5 petals, 5 stamens, and 1 carpel. The arrangement of sepals is not specified.

To determine the class of plants to which this flower belongs, we would need additional information, such as the overall characteristics of the plant, leaf structure, and other reproductive features. Without this information, it is not possible to accurately classify the plant based solely on the flower formula.

# 1.2. Plant 2: *P3+3A3+3G1

The formula *P3+3A3+3G1 represents the structure of the flower in plant 2. Let's break down the formula:

- P: This indicates the number of sepals and petals combined. In this case, there are 3 sepals and 3 petals. - A: This represents the number of stamens (male reproductive organs) in the flower. In this case, there are 3 stamens. - G: This indicates the number of carpels (female reproductive organs) in the flower. In this case, there is 1 carpel.

Based on this formula, the flower of plant 2 has 3 sepals, 3 petals, 3 stamens, and 1 carpel.

Similar to the previous case, without additional information about the overall characteristics of the plant, it is not possible to accurately classify the plant based solely on the flower formula.

In conclusion, the given formulas provide information about the structure of the flowers in the respective plants. However, to classify the plants accurately, additional information about their overall characteristics and reproductive features is required.