ch. 22- 25 : the plants
... -vein: xylem/phloem bundles (venation: monocots= parallel / dicots = network) -stomata (stoma): openings in epidermis (more on underside) to allow for gas exchange -guard cells: open /close stoma (90% water lost through here) ...
... -vein: xylem/phloem bundles (venation: monocots= parallel / dicots = network) -stomata (stoma): openings in epidermis (more on underside) to allow for gas exchange -guard cells: open /close stoma (90% water lost through here) ...
Chapter 35
... • There are two main types of root system: taproot and fibrous root. • Taproot (many eudicots): a single, large, deep-growing primary root with smaller lateral roots. • Fibrous root system (monocots and some eudicots): composed of numerous thin roots roughly equal in diameter – holds soil in place v ...
... • There are two main types of root system: taproot and fibrous root. • Taproot (many eudicots): a single, large, deep-growing primary root with smaller lateral roots. • Fibrous root system (monocots and some eudicots): composed of numerous thin roots roughly equal in diameter – holds soil in place v ...
MT1-Review-plants
... o It contains stomata (pores), each consisting of a pair of guard cells, which exchange gas for photosynthesis. Stomata are usually on leaf’s lower surface. o Leaf hairs, root hairs, and cotton fibers are special types of epidermal cells. - Vascular tissue (transport) forms from procambium and becom ...
... o It contains stomata (pores), each consisting of a pair of guard cells, which exchange gas for photosynthesis. Stomata are usually on leaf’s lower surface. o Leaf hairs, root hairs, and cotton fibers are special types of epidermal cells. - Vascular tissue (transport) forms from procambium and becom ...
Tropism - Cloudfront.net
... grow down with the gravitational pull. 2. Negative gravitropism – stem growth up and away from the gravitational pull. ...
... grow down with the gravitational pull. 2. Negative gravitropism – stem growth up and away from the gravitational pull. ...
lecture presentations
... • The two vascular tissues are xylem and phloem • Xylem conveys water and dissolved minerals upward from roots into the shoots • Phloem transports organic nutrients from where they are made to where they are needed ...
... • The two vascular tissues are xylem and phloem • Xylem conveys water and dissolved minerals upward from roots into the shoots • Phloem transports organic nutrients from where they are made to where they are needed ...
Slide 1 - CFleshner
... other natural pollinators Collectively the flower petals are called the corolla The Sepals together function as a protective device for the developing flower Together the sepals are called the calyx ...
... other natural pollinators Collectively the flower petals are called the corolla The Sepals together function as a protective device for the developing flower Together the sepals are called the calyx ...
Plant Science Unit 4 Review – Plant Anatomy and Physiology 4.1
... _____4. A plant that completes its life cycle in one growing season. _____5. A plant whose stem has little or no woody tissue. _____6. A plant that completes its life cycle in two growing seasons. _____7. A plant that completes its life cycle in more than two years. _____8. A class of flowering plan ...
... _____4. A plant that completes its life cycle in one growing season. _____5. A plant whose stem has little or no woody tissue. _____6. A plant that completes its life cycle in two growing seasons. _____7. A plant that completes its life cycle in more than two years. _____8. A class of flowering plan ...
Lab 4: Unicellular Algae, and Multicellular Algae
... genus of algae. Plants are less than a meter in length. Each branch has a thickened midrib and thinner tissue on either side. Some species form gas bladders that provide buoyancy when the plant is submerged in calm water. Fucus forms specialized reproductive structures at the end of its branches cal ...
... genus of algae. Plants are less than a meter in length. Each branch has a thickened midrib and thinner tissue on either side. Some species form gas bladders that provide buoyancy when the plant is submerged in calm water. Fucus forms specialized reproductive structures at the end of its branches cal ...
Vascular Plants notes
... - first structure that comes out of the seed is the primary root = main root system - from it you have secondary roots. -These roots are arranged in 2 main types 1. taproot system here primary root remains the main root and is the largest. -grows deep and is very hard to pull out -plants with a tap ...
... - first structure that comes out of the seed is the primary root = main root system - from it you have secondary roots. -These roots are arranged in 2 main types 1. taproot system here primary root remains the main root and is the largest. -grows deep and is very hard to pull out -plants with a tap ...
WILDLIFE
... minerals from the soil through the root hairs. The root hairs are single cells near the tip of each root. The other main function of the root is to hold the plant in position in the soil. Plants such as sugar beet and carrots are able to store (keep) food in their roots. In this way they can grow fo ...
... minerals from the soil through the root hairs. The root hairs are single cells near the tip of each root. The other main function of the root is to hold the plant in position in the soil. Plants such as sugar beet and carrots are able to store (keep) food in their roots. In this way they can grow fo ...
BioD Exam Plants Structure and Function
... 12. Which answer choice describes the direction in which sugars are most commonly transported by the vascular system? a. A to B to C. b. C to B to A. c. C to B to A. 13. What substances most commonly move in the direction from C to A? a. Mineral nutrients and sugars b. Water and sugars c. Water and ...
... 12. Which answer choice describes the direction in which sugars are most commonly transported by the vascular system? a. A to B to C. b. C to B to A. c. C to B to A. 13. What substances most commonly move in the direction from C to A? a. Mineral nutrients and sugars b. Water and sugars c. Water and ...
Plants
... (2) short-distance transport of substances from cell to cell at the level of tissues or organs (3) long-distance transport of sap within xylem and phloem at the level of the whole plant. ...
... (2) short-distance transport of substances from cell to cell at the level of tissues or organs (3) long-distance transport of sap within xylem and phloem at the level of the whole plant. ...
Biology 3B Plant Structure Lab Page 1 of 11 Biology 3B Laboratory
... Observe and sketch an apical meristem shown on the Coleus stem tip. All of the cells in the meristem are relatively small, with small vacuoles and large nuclei. Identify the primordial leaves. Beneath the apical meristem are three meristematic tissues. Protoderm, the outermost layer, develops from i ...
... Observe and sketch an apical meristem shown on the Coleus stem tip. All of the cells in the meristem are relatively small, with small vacuoles and large nuclei. Identify the primordial leaves. Beneath the apical meristem are three meristematic tissues. Protoderm, the outermost layer, develops from i ...
Plant Structure and Function
... – Fibrous roots - a dense network of many thin string-like roots. • These roots spread out to absorb water and nutrients that are close to the surface. ...
... – Fibrous roots - a dense network of many thin string-like roots. • These roots spread out to absorb water and nutrients that are close to the surface. ...
3.3 Plants flashcards
... mistaken for petals but are actually modified leaves called what? 28) What do bracts attract? 29) Those leaves which produce tiny plantlets, which fall off the leaf and take root in the soil are modified for what? 30) The dermal tissue in non woody plants, which usually consists of a single layer of ...
... mistaken for petals but are actually modified leaves called what? 28) What do bracts attract? 29) Those leaves which produce tiny plantlets, which fall off the leaf and take root in the soil are modified for what? 30) The dermal tissue in non woody plants, which usually consists of a single layer of ...
plant_tropism
... auxin concentration on the lower side of the root suppresses cell elongation. The upper side of the root continues to grow, causing the roots to ...
... auxin concentration on the lower side of the root suppresses cell elongation. The upper side of the root continues to grow, causing the roots to ...
sexual reproduction in flowering plants
... Name and explain the methods of a plant of dispersing seeds. Be able to recognise this in pictures of fruits. Name and explain the methods by which a plant can be pollinated. Name the characteristics of flowers that use each method. Explain how a plant fills the fruits and the seeds leaves with nutr ...
... Name and explain the methods of a plant of dispersing seeds. Be able to recognise this in pictures of fruits. Name and explain the methods by which a plant can be pollinated. Name the characteristics of flowers that use each method. Explain how a plant fills the fruits and the seeds leaves with nutr ...
Plant Regulation
... not grow if their tips were removed. IAA is responsible for apical dominance. Apical dominance exists when lateral buds on the stem close to the apex of a plant do not develop while the growing tip at the apex of a plant grows and develops. Development of the lateral buds is inhibited as a result of ...
... not grow if their tips were removed. IAA is responsible for apical dominance. Apical dominance exists when lateral buds on the stem close to the apex of a plant do not develop while the growing tip at the apex of a plant grows and develops. Development of the lateral buds is inhibited as a result of ...
Homeostasis in Plants
... not grow if their tips were removed. IAA is responsible for apical dominance. Apical dominance exists when lateral buds on the stem close to the apex of a plant do not develop while the growing tip at the apex of a plant grows and develops. Development of the lateral buds is inhibited as a result of ...
... not grow if their tips were removed. IAA is responsible for apical dominance. Apical dominance exists when lateral buds on the stem close to the apex of a plant do not develop while the growing tip at the apex of a plant grows and develops. Development of the lateral buds is inhibited as a result of ...
owen BOTANY - Kowenscience.com
... zones of cells: Meristematic zone: produces new cells by mitosis Zone of elongation: cells elongate and push meristematic zone into soil…why the roots grow in size Zone of maturation: No cell growth ...
... zones of cells: Meristematic zone: produces new cells by mitosis Zone of elongation: cells elongate and push meristematic zone into soil…why the roots grow in size Zone of maturation: No cell growth ...
cloning plants and animals
... Asexual reproduction in plants is known as vegetative propagation Examples ▪ Strawberry plants produce runners ▪ Potatoes form underground tubers ▪ Daffodils produce bulbs ▪ English Elm produces root suckers (basal sprouts) ...
... Asexual reproduction in plants is known as vegetative propagation Examples ▪ Strawberry plants produce runners ▪ Potatoes form underground tubers ▪ Daffodils produce bulbs ▪ English Elm produces root suckers (basal sprouts) ...
Leaves
... called a peg) will grow from the flower and head into the soil. • At the end of each stem, the seed pods (peanuts in the shell) will develop. ...
... called a peg) will grow from the flower and head into the soil. • At the end of each stem, the seed pods (peanuts in the shell) will develop. ...
Plants-5th Grade Chapter 1 Lesson 3
... Vascular- do not have the same size limits. Ex.: Trees can grow more than 200 ft. Divided into seed and seedless plants Seed plants- Ex: pine trees/flowering plants A seed contains an undeveloped plant, stored food and a protective covering (PC) PC prevents seed from drying out or damage Undeveloped ...
... Vascular- do not have the same size limits. Ex.: Trees can grow more than 200 ft. Divided into seed and seedless plants Seed plants- Ex: pine trees/flowering plants A seed contains an undeveloped plant, stored food and a protective covering (PC) PC prevents seed from drying out or damage Undeveloped ...
Biology (Sample Paper1)
... If you cross-pollinate homozygous white (recessive) flowers and homozygous purple (dominance) flowers of pea plants, which of the following type(s) of offspring you will obtain? B C D ...
... If you cross-pollinate homozygous white (recessive) flowers and homozygous purple (dominance) flowers of pea plants, which of the following type(s) of offspring you will obtain? B C D ...
Meristem
A meristem is the tissue in most plants containing undifferentiated cells (meristematic cells), found in zones of the plant where growth can take place.Meristematic cells give rise to various organs of the plant and keep the plant growing. The shoot apical meristem (SAM) gives rise to organs like the leaves and flowers, while the root apical meristem (RAM) provides the meristematic cells for the future root growth. SAM and RAM cells divide rapidly and are considered indeterminate, in that they do not possess any defined end status. In that sense, the meristematic cells are frequently compared to the stem cells in animals, which have an analogous behavior and function.The term meristem was first used in 1858 by Karl Wilhelm von Nägeli (1817–1891) in his book Beiträge zur Wissenschaftlichen Botanik. It is derived from the Greek word merizein (μερίζειν), meaning to divide, in recognition of its inherent function.In general, differentiated plant cells cannot divide or produce cells of a different type. Therefore, cell division in the meristem is required to provide new cells for expansion and differentiation of tissues and initiation of new organs, providing the basic structure of the plant body.Meristematic cells are incompletely or not at all differentiated, and are capable of continued cellular division (youthful). Furthermore, the cells are small and protoplasm fills the cell completely. The vacuoles are extremely small. The cytoplasm does not contain differentiated plastids (chloroplasts or chromoplasts), although they are present in rudimentary form (proplastids). Meristematic cells are packed closely together without intercellular cavities. The cell wall is a very thin primary cell wall.Maintenance of the cells requires a balance between two antagonistic processes: organ initiation and stem cell population renewal.Apical meristems are the completely undifferentiated (indeterminate) meristems in a plant. These differentiate into three kinds of primary meristems. The primary meristems in turn produce the two secondary meristem types. These secondary meristems are also known as lateral meristems because they are involved in lateral growth.At the meristem summit, there is a small group of slowly dividing cells, which is commonly called the central zone. Cells of this zone have a stem cell function and are essential for meristem maintenance. The proliferation and growth rates at the meristem summit usually differ considerably from those at the periphery.Meristems also are induced in the roots of legumes such as soybean, Lotus japonicus, pea, and Medicago truncatula after infection with soil bacteria commonly called Rhizobium. Cells of the inner or outer cortex in the so-called ""window of nodulation"" just behind the developing root tip are induced to divide. The critical signal substance is the lipo-oligosaccharide Nod-factor, decorated with side groups to allow specificity of interaction. The Nod factor receptor proteins NFR1 and NFR5 were cloned from several legumes including Lotus japonicus, Medicago truncatula and soybean (Glycine max). Regulation of nodule meristems utilizes long distance regulation commonly called ""Autoregulation of Nodulation"" (AON). This process involves a leaf-vascular tissue located LRR receptor kinases (LjHAR1, GmNARK and MtSUNN), CLE peptide signalling, and KAPP interaction, similar to that seen in the CLV1,2,3 system. LjKLAVIER also exhibits a nodule regulation phenotype though it is not yet known how this relates to the other AON receptor kinases.