1.
What conducts water and nutrients in a plant?
Correct Answer
C. Vascular tissue
Explanation
Vascular tissue conducts water and nutrients in a plant. It consists of two types of tissues: xylem and phloem. Xylem transports water and minerals from the roots to the rest of the plant, while phloem transports sugars and other organic compounds from the leaves to other parts of the plant. This transportation system allows for the distribution of essential substances throughout the plant, ensuring its growth and survival.
2.
What transports water and minerals from roots to leaves?
Correct Answer
B. Xylem
Explanation
Xylem is a type of vascular tissue that transports water and minerals from the roots to the leaves of a plant. It is responsible for upward movement of water, providing hydration and nutrients to the entire plant. The xylem tissue consists of specialized cells called tracheids and vessel elements that form long tubes, allowing for efficient water transport. This process is known as transpiration, where water is pulled up through the xylem by the process of evaporation from the leaves. Therefore, xylem is the correct answer for the question.
3.
What is hollow and nonliving at maturity, also water flows through pits?
Correct Answer
A. Tracheids
Explanation
Tracheids are a type of cells found in the xylem tissue of plants. They are hollow and nonliving at maturity, meaning they lack cytoplasm and other organelles. Tracheids have pits, which are small openings in their cell walls, allowing water to flow through them. Therefore, tracheids fit the description given in the question. Vascular tissue, xylem, and phloem are all related to the transport of water and nutrients in plants, but only tracheids possess the specific characteristics mentioned.
4.
What has no end walls so water flows more freely?
Correct Answer
C. Vessel elements
Explanation
Vessel elements are a type of cells found in plants that are responsible for transporting water and nutrients. Unlike stems, shoots, and roots, vessel elements do not have end walls, which allows water to flow more freely through them. This unobstructed flow is important for efficient transportation of water throughout the plant.
5.
What transports organic nutrients usually from the leaves to the rest of the plant?
Correct Answer
D. pHolem
Explanation
Phloem is the correct answer because it is the vascular tissue responsible for transporting organic nutrients, such as sugars and amino acids, from the leaves to the rest of the plant. It forms a network of tubes that allow for the movement of these nutrients in a process called translocation. The phloem is essential for distributing the products of photosynthesis to other parts of the plant, including the roots, flowers, and fruits.
6.
What is part of the phloem and transports organic nutrients and companion cells?
Correct Answer
A. Seive tube elements
Explanation
The correct answer is sieve tube elements. Sieve tube elements are part of the phloem, which is responsible for transporting organic nutrients throughout the plant. They are specialized cells that form a continuous tube, allowing for the efficient movement of sugars and other nutrients. Companion cells are also closely associated with sieve tube elements and provide metabolic support to ensure the proper functioning of the phloem. Plasmodesmata are small channels that connect plant cells and allow for communication and transport between them. Internodes are the segments of a stem between nodes. Eudicot is a type of flowering plant that is characterized by having two seed leaves.
7.
Strands of cytoplasm extending from one cell to another through the sieve tube.
Correct Answer
C. Plasmodesmata
Explanation
Plasmodesmata are small channels that connect adjacent plant cells, allowing for the exchange of nutrients, water, and other molecules. These strands of cytoplasm extend from one cell to another through the sieve tube, facilitating communication and transport between cells. Plasmodesmata play a crucial role in plant growth, development, and defense mechanisms. They allow for the coordination of activities and the movement of substances throughout the plant. Therefore, plasmodesmata is the most appropriate answer to the given question.
8.
What gives rise to the epidermis?
Correct Answer
A. Protoderm
Explanation
The protoderm gives rise to the epidermis. The protoderm is one of the three primary meristems in plants, responsible for the development of the outermost layer of cells in the plant body, which forms the epidermis. The epidermis is a protective layer that covers the surface of leaves, stems, and roots, preventing water loss, regulating gas exchange, and providing protection against external factors such as pathogens and UV radiation.
9.
What produces ground tissue?
Correct Answer
C. Ground meristem
Explanation
Ground tissue is produced by the ground meristem. The ground meristem is a type of meristematic tissue found in plants that is responsible for producing the ground tissue system. The ground tissue system is made up of various cell types that perform functions such as storage, support, and photosynthesis. Therefore, ground meristem is the correct answer as it is the specific tissue responsible for producing the ground tissue system in plants.
10.
What produces vascular tissue?
Correct Answer
A. Procambium
Explanation
Procambium is the correct answer because it is the primary meristematic tissue responsible for producing vascular tissue in plants. Vascular tissue includes xylem and phloem, which are responsible for transporting water, nutrients, and sugars throughout the plant. Procambium differentiates into these specialized tissues during plant development, allowing for the efficient transport of resources. The other options, protoderm and vascular tissue, are incorrect because protoderm is responsible for producing the epidermis and vascular tissue is the result of procambium differentiation.
11.
What forms the outer protective covering of the plant?
Correct Answer
D. Epidermal tissue
Explanation
The epidermal tissue forms the outer protective covering of the plant. It is a single layer of cells that covers the entire plant body, including the leaves, stems, and roots. The epidermis helps to prevent water loss, protect against pathogens, and regulate gas exchange. It also produces a waxy substance called cuticle, which further aids in reducing water loss. The epidermal tissue is essential for the survival and functioning of the plant, making it the correct answer.
12.
What fills the interior of a plant?
Correct Answer
A. Ground tissue
Explanation
Ground tissue fills the interior of a plant. Ground tissue is a type of plant tissue that is found between the vascular tissue and the epidermis. It is responsible for various functions including storage, photosynthesis, and support. Ground tissue consists of three types of cells: parenchyma, collenchyma, and sclerenchyma. Parenchyma cells are involved in photosynthesis and storage, while collenchyma and sclerenchyma cells provide support to the plant. Overall, ground tissue plays a crucial role in the structure and function of a plant.
13.
What transports water and nutrients in a plant and provides support?
Correct Answer
B. Vascular tissue
Explanation
Vascular tissue is responsible for transporting water and nutrients in a plant and also provides support. It consists of two types of tissues - xylem and phloem. Xylem transports water and minerals from the roots to the rest of the plant, while phloem transports sugars and other organic compounds from the leaves to other parts of the plant. Additionally, the vascular tissue also provides structural support to the plant, allowing it to stand upright.
14.
What contains two types of conducting cells called tracheids and vessel elements which are modified sclerenchyma cells?
Correct Answer
A. Xylem
Explanation
Xylem is the correct answer because it is a plant tissue that contains two types of conducting cells called tracheids and vessel elements, which are modified sclerenchyma cells. Tracheids and vessel elements are responsible for transporting water and minerals from the roots to the rest of the plant. Xylem is part of the vascular system in plants and plays a crucial role in providing support and conducting fluids throughout the plant.
15.
What transports sucrose, other organic compounds, and hormones from the leaves to the roots?
Correct Answer
A. pHloem
Explanation
Phloem is responsible for transporting sucrose, other organic compounds, and hormones from the leaves to the roots. It is a specialized tissue in plants that forms a network of tubes, allowing for the movement of nutrients and other molecules throughout the plant. Unlike xylem, which transports water and minerals from the roots to the leaves, the phloem is responsible for the movement of sugars and other organic molecules in both directions. The vascular cylinder and parenchyma cells are not directly involved in the transport of these substances.