Chapter 8: Problem 3
The anther contains (a) sepals. (b) ovules. (c) pistil. (d) pollen grains.
Short Answer
Expert verified
The anther contains pollen grains.
Step by step solution
01
Identify the structure of the plant
In this step, identify the different parts of the plant mentioned in the options: sepals, ovules, pistil, and pollen grains. Understand that the anther is a part of the stamen, which is the male reproductive part of a flower.
02
Determine the function of the anther
The primary function of the anther is to produce and release pollen grains, which contain the male gametes needed for fertilization.
03
Compare with given options
Compare each option to see which one matches the function and structure of the anther: (a) sepals (part of the flower used to protect the bud), (b) ovules (part of the female reproductive organ that develops into seeds), (c) pistil (female reproductive part that includes the ovary, style, and stigma), (d) pollen grains (produced by the anther).
04
Select the correct answer
From the comparison in the previous step, determine that pollen grains are produced by the anther, making (d) the correct answer.
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.
anther function
The anther is a key component of a flower's reproductive system. It plays a central role in plant reproduction by producing and releasing pollen grains. Pollen grains contain the male gametes (sperm cells) necessary for fertilization. The anther is typically located at the top of the stamen, the male part of the flower. Understanding how the anther functions helps to comprehend the broader process of plant reproduction. By producing pollen, the anther enables the transfer of male genetic material to female structures, allowing seeds to develop and grow into new plants.
reproductive parts of plants
Plants have distinct reproductive parts that are essential for their life cycle. The main reproductive organs are divided into male and female structures. Male parts include the stamen, which consists of the anther and filament. The anther is responsible for producing pollen, while the filament supports the anther.
The female parts constitute the pistil, composed of the ovary, style, and stigma. The ovary houses ovules, which develop into seeds following fertilization. The style acts as a tube that allows pollen to travel to the ovary, and the stigma is the sticky surface that catches and holds pollen.
Together, these parts work harmoniously to enable the reproduction process in plants. Pollination, often aided by wind, insects, or animals, ensures the transfer of pollen from anthers to stigmas, initiating the fertilization process and leading to the development of fruit and seeds.
The female parts constitute the pistil, composed of the ovary, style, and stigma. The ovary houses ovules, which develop into seeds following fertilization. The style acts as a tube that allows pollen to travel to the ovary, and the stigma is the sticky surface that catches and holds pollen.
Together, these parts work harmoniously to enable the reproduction process in plants. Pollination, often aided by wind, insects, or animals, ensures the transfer of pollen from anthers to stigmas, initiating the fertilization process and leading to the development of fruit and seeds.
pollen production
Pollen production is a critical step in the reproductive cycle of flowering plants. The process begins in the anther, where pollen grains are developed in specialized structures called pollen sacs.
Inside each pollen sac, cells undergo meiosis to form haploid pollen grains. These grains, encased in a tough outer layer, protect the male genetic material during its transfer. Once mature, the anther releases the pollen grains, making them available for pollination.
Pollination can occur through various means, including wind, insects, birds, and other animals. When a pollen grain lands on a compatible stigma, it germinates and grows a pollen tube down the style toward the ovary, enabling fertilization. This fascinating process ensures the diversity and propagation of plant species across the environment.
Inside each pollen sac, cells undergo meiosis to form haploid pollen grains. These grains, encased in a tough outer layer, protect the male genetic material during its transfer. Once mature, the anther releases the pollen grains, making them available for pollination.
Pollination can occur through various means, including wind, insects, birds, and other animals. When a pollen grain lands on a compatible stigma, it germinates and grows a pollen tube down the style toward the ovary, enabling fertilization. This fascinating process ensures the diversity and propagation of plant species across the environment.