Plant Quiz December 4

The three main parts of a plant are the root, stem, and leaf. The root anchors the plant in the ground and absorbs water and nutrients from the soil. The stem provides support to the plant and transports water, nutrients, and sugars between the roots and leaves. The leaf is the main site of photosynthesis, where sunlight is converted into energy for the plant.

The statement "The flower hold the plant into the ground" is incorrect. Flowers do not hold plants into the ground. The main function of flowers is to produce seeds for reproduction. The roots of a plant are responsible for anchoring it into the ground and absorbing water and nutrients. Flowers are typically found above ground and serve as the reproductive organs of the plant, attracting pollinators and enabling the production of seeds. Therefore, the correct answer is False.

Fibrous roots are a type of root system where multiple roots branch out from the base of the plant and spread out in different directions. These roots work together to efficiently absorb water and minerals from the soil. This allows the plant to have a larger surface area for nutrient absorption and provides stability to the plant. Therefore, the statement "Fibrous roots are a bundle of roots that work together to absorb water and minerals from the soil" is true.

Chloroplast is the correct answer because it is the green substance found in a leaf. Chloroplasts are specialized organelles found in plant cells that contain chlorophyll, a pigment that gives plants their green color and is essential for photosynthesis. Photosynthesis is the process by which plants convert sunlight into energy, and it takes place in the chloroplasts. Therefore, the green substance in a leaf is chloroplast.

A taproot is a type of root system that consists of a main root that grows vertically downwards, with smaller lateral roots branching off from it. Carrots are an example of taproots that are edible. They have a thick, elongated main root that is typically orange in color and is the part of the plant that is consumed. Carrots are commonly used in cooking and are known for their sweet flavor and crunchy texture.

The job of the leaf is to make food through the process of photosynthesis. Leaves contain chlorophyll, which captures sunlight and converts it into energy. This energy is used to combine carbon dioxide and water to produce glucose, which serves as food for the plant. Therefore, the correct answer is "make food."

The stem holds the leaves up. The stem of a plant is responsible for providing support and structure to the plant, allowing it to stand upright. It also transports water, nutrients, and sugars between the roots and leaves. Without a strong and sturdy stem, the leaves would not be able to receive the necessary sunlight for photosynthesis and would droop or fall off.

The statement that "The stomata only lets materials out" is incorrect. Stomata are small openings on the surface of leaves that allow for the exchange of gases, including both the release of oxygen and the intake of carbon dioxide during photosynthesis. Therefore, stomata not only let materials out but also allow materials to enter the plant. Thus, the correct answer is False.

The epidermis is the outer covering of the leaf. It is a single layer of cells that provides protection to the leaf and helps in reducing water loss through its waxy cuticle. The epidermis also contains stomata, which are small openings that allow for gas exchange and transpiration. The veins and flowers are not the outer covering of the leaf, making them incorrect options.

The term "viens" refers to the veins in a leaf, which are responsible for transporting water and nutrients throughout the leaf.

A tap root is a single main root that stores food. It is the primary root that grows vertically into the soil and provides stability to the plant. The tap root system is common in dicotyledonous plants, where the main root grows deep into the ground and gives rise to lateral roots. This main root also acts as a storage organ, storing nutrients and carbohydrates that the plant can use during periods of drought or when nutrients are scarce. The tap root system allows plants to access deeper water and nutrients, making them more resilient and adaptable to different environmental conditions.

The given question is asking for the other type of stem, apart from the woody stem. The correct answer is "soft." This implies that the two types of stems are woody and soft. The word "soft" describes a type of stem that is not woody, indicating that there are different classifications based on the hardness or texture of stems.