CHAPTER 13 KEY TERMS Stomata Guard Cell Transpiration
- Slides: 13
CHAPTER 13 KEY TERMS Stomata Guard Cell Transpiration Palisade Layer Spongy Layer Hormone Tropism Gravitropism Root Hairs Respiration Phototropism Photoperiodism Aerobic Cellular
CHAPTER 13 PLANT KINGDOM: PROCESSES
FUNCTIONS OF PLANTS • Plants are living organisms • Need water, air, energy • React, breathe, eat • Water movement 1. Entrance through roots • Enters through the epidermis • Root hairs: extension of the epidermis • Water moves toward middle of root by osmosis • Xylem located in middle of root 3
FUNCTIONS OF PLANTS • Water Movement 2. Transport via xylem • Water is pulled up the stem by capillary action • Ability of a liquid to flow in narrow spaces without the assistance of and in opposition to external forces 3. Exit through leaves • Transpiration: exiting of water through the stomata of plants • Stomata: openings on the underside of leaves • Guard Cells: surround stomata; open and close stomata 4
FUNCTIONS OF PLANTS • Aerobic Cellular Respiration • Use oxygen to make energy the cell can use • Produces carbon dioxide • Gas exchange in plants • Stomata in the leaves • Lenticels in the woody parts • Epidermis of roots • Burrowing insects irrigate the ground for plants 5
FUNCTIONS OF PLANTS • Photosynthesis • Process by which plants make food (occurs in chloroplasts) Chlorophyll • Palisade Layer • Densely packed, rectangular cells • Spongy Layer • Loosely arranged cells 6
FUNCTIONS OF PLANTS • Photosynthesis • Requires CO 2 and H 2 O Light • 6 CO 2 + 6 H 2 Oenergy C 6 H 12 O 6 + 6 O 2 7
FUNCTIONS OF PLANTS • Transport and store sugar • Sugar contains stored form of energy • Some of this sugar gets stored as starch or lipids • Plant is a source of energy for other organisms • This is known as a producer 8
FUNCTIONS OF PLANTS • Growth • Plant surroundings affect growth • Grow by mitosis • Regions of growth: • Root tips • Vascular cambium: growth region between xylem and phloem • Cork cambium: produces cork cells to protect outside of stem 9
FUNCTIONS OF PLANTS • Hormones • Chemical substances made by plants that affect how plant tissues grow • Determine the type of cell, tell them to divide, grow, stop growing… • Ex. Auxin – produces elongation of the plant 10
PLANT RESPONSES • Tropisms • Growth response of a plant to something in its environment • Positive tropism: plant grows toward factor • Negative tropism: plant grows away from factor • Phototropism • Plant responds to presence of light • Usually grows toward light • Auxin: growth hormone 11
PLANT RESPONSES • Gravitropism • Plant responds to gravity • Positive – roots • Negative – stems 12
PLANT RESPONSES • Photoperiodism • Plant’s response to length of time exposed to light • Determines flower production • Short-day Plants: apples, violets, poinsettias, soybeans • Long-day Plants: Lettuce, Clover, Grains • Day-neutral Plants: Hybrid roses, Dandelions, Tomatoes, Cotton 13
- Stomata lab answers
- Snapshot standby
- Difference between data guard and active data guard
- Upper hood guard and full diameter saw guard
- Power tools must be fitted with guards and
- Diffusion shells transpiration
- Stomata process
- Stomata process
- Autotrophic nutrition equation
- Bloody chlorophyll
- Dictyledon
- Tipe stomata
- An organized way of gathering and analyzing evidence
- Sel penutup pada stomata