Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 30, Problem 3VCQ
Figure 30.34 Which of the following statements is false?
- Negative water potential draws water into the root hairs. Cohesion and adhesion draw water up the xylem. Transpiration draws water from the leaf.
- Negative water potential draws water into the root hairs. Cohesion and adhesion draw water up the phloem. Transpiration draws water from the leaf.
- Water potential decreases from the roots to the top of the plant.
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Chapter 30 Solutions
Biology 2e
Ch. 30 - Figure 30.7 Which layers of the stem are made of...Ch. 30 - Figure 30.32 Positive water potential is placed on...Ch. 30 - Figure 30.34 Which of the following statements is...Ch. 30 - Plant regions of continuous growth are made up of...Ch. 30 - Which of the following is the major site of...Ch. 30 - Stem regions at which leaves are attached are...Ch. 30 - Which of the following cell types forms most of...Ch. 30 - Tracheids, vessel elements, sieve-tube cells, and...Ch. 30 - The primary growth of a plant is due to the action...Ch. 30 - Which of the following is an example of secondary...
Ch. 30 - Secondary growth in stems is usually seen in...Ch. 30 - Roots that enable a plant to grow on another plant...Ch. 30 - The forces selective uptake of_____ minerals in...Ch. 30 - Newly-formed root cells begin to form different...Ch. 30 - The stalk of a leaf is known as the petiole lamina...Ch. 30 - Leaflets are a characteristic of leaves ______ ....Ch. 30 - Cells of Thecontain chloroplasts epidermis...Ch. 30 - Which of the following is most likely to be found...Ch. 30 - When stomata open, what occurs?______ Water vapor...Ch. 30 - Which cells are responsible for the movement of...Ch. 30 - The main photoreceptor that triggers phototropism...Ch. 30 - Phytochrome is a plant pigment protein that...Ch. 30 - A mutant plant has roots that grow in all...Ch. 30 - After buying green bananas or unripe avocadoes,...Ch. 30 - A decrease in the level of which hormone releases...Ch. 30 - A seedling germinating under a stone grows at an...Ch. 30 - What type of meristem is found only in monocots,...Ch. 30 - Which plant part is responsible for transporting...Ch. 30 - Describe the roles played by stomata and guard...Ch. 30 - Compare the structure and function of xylem to...Ch. 30 - Explain the role of the cork cambium in woody...Ch. 30 - What is the function of lenticels?Ch. 30 - Besides the age of a tree, what additional...Ch. 30 - Give two examples of modified stems and explain...Ch. 30 - Compare a tap root system with a fibrous root...Ch. 30 - What might happen to a root if the pericycle...Ch. 30 - How do dicots differ from monocots in terms of...Ch. 30 - Describe an example of a plant with leaves that...Ch. 30 - The process of bulk flow transports fluids in a...Ch. 30 - Owners and managers of plant nurseries have to...Ch. 30 - What are the major benefits of gravitropism for a...Ch. 30 - Fruit and vegetable storage facilities are usually...Ch. 30 - Stomata close in response to bacterial infection....
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- Ground tissue in monocot stems performs the same functions as _______________ and _______________ in herbaceous eudicot stems. (a) phloem; xylem (b) cork cambium; vascular cambium (c) epidermis; periderm (d) primary xylem; secondary xylem (e) cortex; pitharrow_forwardWhich of the following is true for the function of xylem and phloem? * A. Xylem transports water from leaves to roots; phloem transports sugar from roots to leaves B. Xylem transports sugar from roots to leaves; phloem transports water from leaves to roots C. Xylem transports water from roots to leaves; phloem transports sugar from leaves to roots D. Xylem transports sugar from leaves to roots; phloem transports water from roots to leavesarrow_forwardA complex polysaccharide that provides flexibility to plant cell walls is: Glucose Pectin Starch Sucrose Roots branching from existing roots are called: Adventitious roots Taproots Meristem roots Parenchyma roots Plant stomata are regulated by: Humidity Hormonal signals Guard cells All of the above Xylem tissue conducts: Water Minerals Sugars Both a. and b. The element nitrogen is important in producing the plant nutrient: Carbon dioxide Glucose Ammonia Phosphorus The female plant reproductive organ is called: Anther Carpel Style Stamen A fertilized flowering plant is represented by what genetic chromosome number: 4n n 2n 3n Vernalization is a plant response to: Light Gravity Physical contact None of the above Plant epidermis secretes a waterproof substance called: Cuticle Wax Periderm covering Pectin Plant transpiration accounts for what % of atmospheric water vapor? 50% 90% 5% 75%arrow_forward
- Which of the following slides should be focused on the microscope if you want to observe primary xylem and primary phloem tissues? a cross-section of an old acacia stemb epidermal section of a leafc cross-section of a monocot stemd L-section of the onion root tiparrow_forwardWhich of the following forces make the movement of water through the xylem possible? * A. Cohesion and adhesion B. Transpiration C. Root pressure D. A and B E. A, B, and Carrow_forwardWhich of the following statements about age gradients within the plant body is FALSE? Select one: a. Age gradients within the plant body include an apical-basal gradient where the youngest cells are near the apices (tips of shoots and roots). b. Age gradients within the plant body reflect the plant cells’ lack of mobility due to their shared walls. c. Phloem is oldest toward the outermost cell layers of the tree trunk and xylem is oldest toward the innermost cell layers of a tree trunk. d. All of the statements are true. e. Age gradients within the plant cells include walls that are youngest immediately adjacent to the plasma membrane and progressively older toward the middle lamella.arrow_forward
- Vernalization is a plant response to: Light Gravity Physical contact None of the above Plant epidermis secretes a waterproof substance called: Cuticle Wax Periderm covering Pectin Plant transpiration accounts for what % of atmospheric water vapor? 50% 90% 5% 75%arrow_forwardWhich of the following statements is inaccurate?a. Water that evaporates from leaves is ultimately replaced by water diffusing from the xylem.b. Xylem transports water up the plant while phloem transports carbohydrates throughout the plant.c. Water movement in the xylem is largely due to the pressure-flow hypothesis.d. Water movement across membranes is often due to differences in solute concentrations.arrow_forwardQ. which of the following stores organic nutrients in a dicot stem? ● Casparian strip ● Stomata ● Pith ● Root hairs ● Xylemarrow_forward
- Which of the following is not a function or characteristic of roots in plants? Question 8 options: Absorb minerals. Exhibit a negative gravitropism. Anchor the plant. Exhibit a positive gravitropism.arrow_forwardWhat are the flaws ? Meristematic tissue is the site of mitosis and therefore growth for a plant. Apical meristem is found at the tips of roots and shoots and allows them to produce flowers. Lateral meristem is found along the length of the plant and allows it to increase in width. Intercalary meristem is found in nodes along grasses and allows them to grow from the “base”, which is why grass continues to grow after it is cut. Plants have three organs: leaves, stems, and roots. While the functions of the organs are the same between plants, the structure is different between two large groups of plants: monocots and dicots. Leaves are the site of photosynthesis. In monocots, the vascular tissue is in parallel veins like in grass. In dicots, the veins form a web or net pattern like in a maple leaf. A bulb is a modified leaf that allows the plant to store food. Stems make up the “body” of the plant and support the leaves. In monocots, vascular bundles are found randomly throughout the…arrow_forwardWhich of these plant structures is considered a source tissue? (Choose All That Apply) tubers (like potatoes) non-photosynthetic stems roots engaged in water uptake apical meristems mature leavesarrow_forward
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