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 19RQ
When stomata open, what occurs?______
- Water vapor is lost to the external environment, increasing the rate of transpiration
- Water vapor is lost to the external environment, decreasing the rate of transpiration
- Water vapor enters the spaces in the mesophyll increasing the rate of transpiration
- Water vapor enters the spaces in the mesophyll decreasing the rate of transpiration.
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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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- Closed stomata ________. a. limit gas exchange b. permit water loss c. prevent photosynthesis d. absorb lightarrow_forwardStomata open in response to light when _______ a. ions flow into guard cell cytoplasm b. ions flow out of guard cell cytoplasm c. water evaporates out of guard cellsarrow_forwardFigure 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. Water enters the plants through root hairs and exits through stoma.arrow_forward
- Tree rings occur because_____ a. there are droughts during the time the rings form b. environmental conditions influence xylem cell size c. heartwood alternates with sapwood d. periderm replaces epidermisarrow_forwardGround 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_forwardTree rings occur _______. a. when there are droughts during the time the rings form b. where environmental conditions influence xylem cell size c. if heartwood alternates with sapwood d. as epidermis replaces peridermarrow_forward
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