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Chapter 23 Practice test
Terms in this set (30)
In angiosperms, xylem consists of tracheids and ____
What is the waxy, thin layer on leaves?
What is the waxy layer on roots by the endodermis?
Cork (made by cork cambium)
What is the waterproof layer in bark of a tree?
What vascular tissue is alive?
xylem and phloem
Vascular tissue in plants consist of
The tip of shoot (the top of plant; apical meristem)
To observe mitosis, which of the following should a student examine under a compound microscope?
the layer of cells that encloses the vascular tissue in the central region of a root is..
Xylem (inside; brings water ) and Phloem (after xylem)
What tissue(s) make up the vascular cylinder?
is produced in the vascular cylinder by active transport
Root pressure ...
carry water and nutrients between roots and leaves.
On of the three main functions of stems is to..?
They absorb water and nutrients from the soil
Many cacti, such as saguaros and barrel cacti, have large stems and no leaves. What function of leaves is taken on by the stems of such cacti?
increases in length
During primary growth, a stem....?
Oxygen and carbon dioxide move in and of a leaf through ..?
If the guard cells are open they are _____ in water pressure
Water loss would be less on the shaded lower surface than in direct sun
In many plants, stomata are found only on the lower surface of the leaf. The most likely explanation for this fact is that...?
The attraction of water molecules to other kinds of like molecules
Water moves from the xylem to the phloem of a plant, Phloem is able to move sugars in either direction to meet the nutritional needs of the plant, the movement of water into a nutrient-rich region of the phloem decreases the pressure in that region
According to the pressure-flow hypothesis, which of the following statements are true?
attraction between unlike molecules
roots, stems, and leaves
Ground tissue is found in the plant's ...?
In plants, the main organs in which photosynthesis takes place are ______
Root hairs are made up of _____ tissue
In plants, the opening and closing of stomata balance water loss with the need for _________
________ at the tips of stems and roots produce rapid growth in plants.
Endodermis includes a waterproof zone called the ______
In xylem and phloem, the cells that keep their nuclei and organelles are the ________
Water and nutrients move up the plant through XYLEM tissue while water and sugar move down the plant through PHLOEM
Contrast the flow of materials in xylem and phloem.
Closed, When temperatures are too hot, plant stomata close to prevent too much water to evaporate from the plant.
During a very hot, sunny day, are stomata likely to be open or closed? Explain.
The roots and stems take away water and sugar from the leaves but also display and support the leaves to absorb light for photosynthesis and also transports water and nutrients to the leaves.
In what ways do the leaves of a plant depend on the plant's roots and stem?
Active transport (low concentration to a higher concentration) is given light and energy from the sun in order to move nutrients to the epidermis then to cortex cells to the endodermis and then finally get to xylem. into the sieve tube from surrounding tissue. Then water is followed by osmosis (high to low concentration of water)
Explain the role of active transport in the movement of water and dissolved nutrients from the soil to the root of a plant.
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