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What type of tissue surrounds the chloroplasts and the xylem and phloem in the leaves?
The chloroplasts in leaves are surrounded by a double membrane called the chloroplast envelope. Xylem and phloem in leaves are surrounded by a layer of parenchyma cells, which provide support and protection to these vascular tissues.
How are mature phloem cells controlled if they lack a nucleus?
Mature phloem cells are regulated by surrounding companion cells, which supply them with necessary proteins and nutrients. These companion cells are connected to the phloem cells by plasmodesmata, allowing for communication and control despite the phloem cells lacking a nucleus.
What are the constituents of phloem?
The phloem consists mainly of sieve tubes, companion cells, phloem fibers, and parenchyma cells. Sieve tubes are responsible for transporting sugars and other organic compounds, while companion cells support sieve tube function. Phloem fibers provide structural support, and parenchyma cells store nutrients.
Where is sclerenchyma most abundant in the stem?
Ground Tissue This region is composed of small, thick-walled sclerenchyma on the inside of the epidermis. These layers of cells are followed by larger thin-walled parenchyma cells.
What are the xylem and phloem are separated by?
The xylem and phloem are separated by vascular cambium in woody plants. This layer of meristematic tissue is responsible for producing new xylem and phloem cells, allowing the plant to grow in diameter.
Conducting tissue of vascular plants made up of soft-walled cells that conduct carbohydrates away from the areas where they are made?
phloem
What type of tissue surrounds the chloroplasts and the xylem and phloem in the leaves?
The chloroplasts in leaves are surrounded by a double membrane called the chloroplast envelope. Xylem and phloem in leaves are surrounded by a layer of parenchyma cells, which provide support and protection to these vascular tissues.
Are phloem cells alive?
Yes, Phloem cells are alive.
Herbaceous and young woody stems carry on photosynthesis in the cells of the a.xylem b. cortex c.phloem d.vascular cambium?
Herbaceous and young woody stems conduct photosynthesis in the cells of the cortex, a tissue located just beneath the epidermis. The xylem is responsible for transporting water and minerals, while the phloem is involved in the transport of sugars produced during photosynthesis. The vascular cambium is a region of meristematic tissue that gives rise to secondary xylem and phloem in woody plants.
How are mature phloem cells controlled if they lack a nucleus?
Mature phloem cells are regulated by surrounding companion cells, which supply them with necessary proteins and nutrients. These companion cells are connected to the phloem cells by plasmodesmata, allowing for communication and control despite the phloem cells lacking a nucleus.
What is the difference between the cells that compose xylem and phloem tissue?
the cells of phloem are the only ones with cytoplasm
What are the constituents of phloem?
The phloem consists mainly of sieve tubes, companion cells, phloem fibers, and parenchyma cells. Sieve tubes are responsible for transporting sugars and other organic compounds, while companion cells support sieve tube function. Phloem fibers provide structural support, and parenchyma cells store nutrients.
Do phloem cells contain chloroplasts?
No, phloem cells do not contain chloroplasts. Chloroplasts are typically found in plant cells that are involved in photosynthesis, such as leaf cells, while phloem cells are specialized for transporting nutrients, such as sugars, throughout the plant.
Which structures make up phloem?
Phloem tissue consists of: conducting cells, generally called sieve elements; parenchyma cells, including both specialized companion cells or albuminous cells and unspecialized cells; and supportive cells, such as fibres and sclereids.(attribution: wikipedia, Phloem)
What are constituents of phloem?
i) Sieve tubes (ii) Companion cells (iii) Phloem parenchyma (iv) Phloem fibres
Where is sclerenchyma most abundant in the stem?
Ground Tissue This region is composed of small, thick-walled sclerenchyma on the inside of the epidermis. These layers of cells are followed by larger thin-walled parenchyma cells.
Phloem is made up of living cells. Phloem takes sugar in the To the roots?
leaves
