Exam Review – January 2013 Diversity Unit - List taxonomic ranks in order. What is the significance of this order? Domain‚ Kingdom‚ Phylum‚ Class‚ Order‚ Family‚ Genus‚ Species. Classification of species: kingdoms contain many different types of organisms‚ each taxon contains progressively fewer types of organisms‚ taxon “species” is narrowest category‚ containing only one type of organism. As you go from kingdom to species‚ organisms share more and more in common. - Explain and give an example
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diagram of a flower and label it (full page). Write a 2 page essay‚ (front and back for each page) on plants and how a flower aids in its reproduction. Include the words below and highlight them. (15 pts max) Fruits Cones Seeds Stigma Guard Cells Phloem Xylem Root Hairs Root Cap Stomata Stamen Pistil Ovary Petals Sperm (pollen) Egg Sepal Filament Anther Style Vascular Guard Cells Flowers Leaves Stems Glucose Sunlight Roots Angiosperms Gymnosperms Oxygen Respiration Transpiration Reproduction Growth Water
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MULTICELLULAR ORGANISMS The complex multicellular animals and plants perform many different activities in order to exist. More energy is invested in all organisms for their accumulation and distribution of food‚ release of waste matters‚ movement‚ reproduction‚ and coordination of these activities. The different organisms have specialized tissues‚ organs and organ systems that work together for the good of the organisms. Thus the well-being of the whole organism depends on the integration
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Grade 10 Biology Revision Guide Characteristics of Living Organisms Nutrition: Respiration: Excretion: Sensitivity: Movement: Homeostasis: Reproduction: Growth: Taking in food for growth and releasing energy. Burning glucose to release energy. Removing waste material like urea formed during chemical reactions. Responding to changes in the environment. Transport inside cells and moving the body. Control their internal conditions. Increasing the number of organisms. Increasing the number of cells
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increases reproductive fitness. Unlike angiosperms‚ mosses (bryophytes) have not achieved the widespread terrestrial success. They are not as successful as angiosperms due to the fact that they are non vascular. Non-vascular means that they have no xylem or phloem tissue. This lack of vascular tissue is the cause of the small size of bryophytes. Bryophytes gametophytes are the dominant stage of the life cycle. They need water for the sperm to swim to the egg during fertilization. Since their sporophytes
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temperatures. It has a carbon backbone of C15 and is formed after carotenoids‚ pigments produced by the chloroplast which have 40 carbons in MEP during biosynthesis. Zeaxanthin is the first ABA precursor. The transport of ABA can occur in both xylem and phloem tissues. It can also be translocated through paranchyma cells. The movement of abscisic acid in plants does not exhibit polarity like auxins. ABA is capable of moving both up and down the stem What is Abscisic Acid (ABA)? Absiscic Acid
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Fixed 1. A thin cuticle. Cuticles primarily discourage water loss; thus most hydrophytes have no need for cuticles. 2. Stomata that are open most of time because water is abundant and therefore there is no need for it to be retained in the plant. This means that guard cells on the stomata are generally inactive. 3. An increased number of stomata‚ that can be on either side of leaves. 4. A less rigid structure: water pressure supports them. 5. Flat leaves on surface plants for
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9.2 - Maintaining a Balance: 1. Most organisms are active within a limited temperature range: * Identify the role of enzymes in metabolism‚ describe their chemical composition and use a simple model to describe their specificity in substrates: * Role of enzymes in metabolism: * Metabolism refers to all the chemical reactions occurring in organisms * Enzymes are biological catalysts which increase the rate of chemical reactions * Without enzymes‚ metabolism
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root growth‚ and barely grew at all over the week period. The orange plant in Figure 1 shows darker lines along the middle of the leaves‚ with dark lines branching out. The edges of the leaves are very pale green. This matches the coverage of xylem vessels in leaves‚ following the centre and branching out towards the edge of the leaves. This is also known as a vascular bundle. The green pigment present in plant leaves is called Chlorophyll‚ and the mineral required in production of this is Magnesium
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plant? Excretions by a plant are substances left over from respiratory processes that cannot be used by the plant. They are also chemicals or toxins that are taken in by the root system up into the body of the plant and are stored in old and unused xylem or phloem passages. These excretions were first brought up somewhere around the mid eighties and have discrepancy to whether or not they exist still today. Some people that don’t believe in this theory are most likely nonbelievers partially due
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