turbzdon

Questions and answers by turbzdon

Questions (132)

Which of the following is not an element?Water Oxygen Carbon Chlorine Hydrogen
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Which of the following does the phospholipid bilayer prevent from diffusing out of the plasma membrane?Ions Amino acids
1. 2 answers
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The continuous cytoplasm in a set of cells connected by plasmodesmata is called a _______.Symplast Apoplast Plasmalemma Protein
1. 1 answer
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Which of the following adds rigidity to the secondary cell walls?Suberin Lignin Glucose Cutin Cellulose
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Cell walls tend to limit cell expansion when a cell is placed in a hypotonic solution. The pressure created by the passive
1. 1 answer
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Which of the following sequences illustrates the composition of a cell wall building from its smallest unit to its largest unit?
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Which of the following statement best describes the golgi apparatus?Acts to complex protein with DNA Controls transcription of
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Which of the following organelles is likely to be involved in controlling cell functions?Golgi apparatus Ribosome Mitochondria
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Which of the following is not associated with a chloroplast?Cisternae Ribosome DNA Double membrane system Chlorophyll
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Which is not true of both mitochondria and chloroplasts?Both can synthesize proteins Both are involved in energy transfer Both
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In which of the following would you not find compartmentalization of enzymatic reactions in a plant cell?Mitochondria
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Which cytoskeleton element forms the basis of cilia and flagella?Myosin Cytoplasmic streaming Microfibrils Microtubules Actin
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Which of the following is part of the asexual cell cycle?G1, S, G2, mitosis and cytokinesis Interphase, mitosis, and cytokinesis
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G1 and G2 arrest can occur if ________ is missing:Glucose Sucrose Starch Chlorophyll Ribosome
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During metaphase in a cell with 28 chromosome, how many chromatids could you count?28 14 42 56 112
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What role do microtubules play in cell division?Cell plate location Regulation of chromosome movement Preprophase band
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Which choice contains chromosomes with a single strand of DNA ?Anaphase Metaphase G2 Prophase All of the above
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Which of the following word associations is incorrect?Chloro-yellow/green Chromo- colour Amyo-starch Leuko-dark Cyto-cell
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A protein destined to be shipped out of a cell would most likely find be found _______In a plastid In the lumen of the smooth ER
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Around each plant cell there is a _____Middle lamella Cell junction Secondary cell wall Cortex Primary cell wall
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Around each plant cell there is a _____Middle lamella Cell junction Secondary cell wall Cortex Primary cell wall
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The dermal tissue system _______.Includes the pith and cortex Covers and protects the plant surface Distributes water Contains
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The following description best fits which simple tissue: walls of alternating pectin and cellulose, may contain chloroplasts at
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Which of the following is not a complex tissue?Sclerenchyma Phloem Epidermis Xylem Periderm
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Which of the following word pairs is mismatched?Phloem: sugar transport Xylem: water and mineral conduction Companion cell:
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Which cell type is only in secondary tissue?Cuticle Collenchyma Periderm cork cells Epidermis Sclerids
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If sieve tube member becomes blocked which process is impaired?Transport of lipids Transport of gases Transport of water
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Which of the following would you not find in the complex tissue called epidermis?Trichomes Guard cell Cuticle Subsidiary cell
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Which of the following is mismatched?All of the below Secondary meristem-tip of branches Root meristem-tip of roots Primary
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Which plays a significant role in determining what a cell will become?Diameter Size Position Shape Age
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Stems are composed of repeating units called _______.Nodes Cotyledons Internodes Modules Procambium
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Flowering plants may be divided into ______ , reflecting embryo characteristics.Dicots and monocots SAMs and RAMs Annuals and
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Seed leaves are also known as _____.Meristems Nodes Modules Internodes Cotyledons
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Protoderm, ground meristem, and procambium are the _________.Meristem cells of the cork cambium Same as nodes Secondary
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How is alternate phylllotaxis defined?Three or more leaves per node, the angle of divergence varying One leaf per node, 137.5
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Which is not a difference between monocot and dicot stems?Ground tissue surrounds the vascular bundles Scattered vascular
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2. 156 views
The cell types found in secondary phloem include ____.Everything between the vascular Cambium and the outside of the woody stem
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Which is the correct order of the tissues from the outside to the center of a stem?Xylem, cambium, phloem, pith Cambium, phloem,
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2. 178 views
Which is not an economic value of woody stems?Wood Natural rubber Pulp Coffee Chewing gum
1. 53 answers
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What are the vascular bundles of stems that network into the attached leaves called?Branch traces Leaf traces Periderm traces
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It is only during ______ that the chloroplasts within plant cells trap light energy and convert it into chemical energy.Respirat
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A single ______ has its leaflets diverging from a single point.Monocot leaf Palmately compound leaf Pinnately compound leaf
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A _____ has is leaflets arranged along an axisMonocot leaf Pinnately compound leaf Palmately compound leaf Simple leaf Simple
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Leaf veins are actually ________.Photosynthetic structures Vascular bundles Intercalary meristems Lateral meristems Petioles
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The most abundant cell type found in leaves is ______.Collenchyma Sclerenchyma Epidermal Subsidiary Parenchyma
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Trichomes are associated with _______.Xylem Epidermis Periderm Phloem Parenchyma
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The principal photosynthesis cells of a leaf are found in the ________.Upper epidermis and palisade mesophyll Upper and lower
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In the early stages of development, leaves are called_____.
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In the early stages of development, leaves are called_____.Cell lineages SAMs RAMs Lateral meristems Primordia
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The first leaves to form as part of the plant embryo are the ____.
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The first leaves to form as part of the plant embryo are the ____.radicle Water leaves Sun leaves Cotyledons Shade leaves
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_______ are modified branches with storage leaves. These leaves store food and water.
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_______ are modified branches with storage leaves. These leaves store food and water.Plantlets Spines Stipules Tendrils Bulbs
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Which of the following is not a characteristic of hydrophyte plants?An abundance of fibers in leaves Leaves often deeply lobed
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Roots are involved in all the following except _______.Food storage Food production Support Anchorage Absorption and conduction
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Grasses have a(n) type of root system.Fibrous Adventitious Taproot Seminal Embryonic
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The embryonic root is the ______.
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The ________ is a group of small, regularly shaped cells, most of which are dividing.
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The ________ is a group of small, regularly shaped cells, most of which are dividing.Root cap Root apical meristem Quiescent
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The ________ is the site of root hair formation and the maturation of other cell types.
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The ________ is the site of root hair formation and the maturation of other cell types.Root cap Root apical meristem Quiescent
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Casparian strips are located on the radial and transverse walls ______.
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Casparian strips are located on the radial and transverse walls ______.of all cortex cells of the pericycle endodermal cells of
1. 1 answer
2. 86 views
During the secondary growth of roots, which of the following is true?Continued growth expands the root and finally causes the
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The ultimate source for food is _________.
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The ultimate source for food is _________.The farm The soil Certain green plants The sun Various metabolic pathways
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Most carbon enters the web of life through _______.
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Most carbon enters the web of life through _______.Respiration Chemosynthesis Aerobic respiration Photosynthesis Both band c
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Which of the following colors of light has the greatest energy?
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The products of the light reactions of photosynthesis ________.
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The products of the light reactions of photosynthesis ________.Are used in the light-independent reactions Are complex
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The process in which oxygen , not carbon dioxide becomes RuBP is _____.
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Most of the water moving into a leaf is lost through _______.
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Most of the water moving into a leaf is lost through _______.Osmotic gradients Transpiration Pressure flow forces Translocation
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Which of the following causes transpiration?Hydrogen bonding The drying power of air Cohesion and adhesion of water molecules
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Usually, during the daytime _______.Carbon dioxide accumulates in leaf cells Turgor pressure in the guard cell decreases Water
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Mineral uptake depends on ______Abscisic acid Adhesion The concentration gradient Active transport Both c and d
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The most common form of sugar transported to the roots is _____.
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Movement of soluble organic material through plants is known as ______.Translocation Active transport Passive transport
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The movement of materials already in the phloem is described as _______.Source-to-sink Pressure flow Cohesion-tension Active
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A stamen is ___________.The site where microspores are produced Part of the vegetative phase of an angiosperm The mature male
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The female gametophyte plant in a flowering plant life cycle is represented by the ______.Gynoecium Androecium Pollen grain with
1. 3 answers
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Which of the following choices represents the correct sequence?Microspores- meiosis- gametophyte-sperm
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The place where pollination occurs is the ________.Stigma Microphyle Anther Receptacle Style
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A plant bearing both staminate and pistillate flowers is ________.Dioecious Imperfect Superior Monoecious Regular
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Bees will not visit flowers of what colour?Red Blue Yellow Purple White
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Dormancy in a seed may be broken by _______.Fire Cold treatment Scarring Light All of the above
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The first indicator of germination is ________.A bursting seed coat Imbibition A downward-growing radicle Enzyme activation
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A fruit formed from several ovaries in one flower could be a(n)_______.Multiple fruit Simple fruit Aggregate fruit Accessory
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Which of the following is not a common animal dispersal vectors?Birds Bats Fish Lizards Rodents
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Auxin is normally produced by ______.Flowers Young leaf primordia Young stems Young roots Older leaves
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What would you never find in a virus?Ribosome A protein coat DNA RNA Genes for enzymes
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During binary fission which choice does not occur?Cells split in two DNA replicates Chromosomes is attached to the plasma
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Select the mismatched pair:Chemolithotroph- chemical rock Heterotroph- derives energy from photosynthesis Heterotroph- other
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Which genus of bacteria is symbiont with legumes?Halobacterium Clostridium Rhizobium Bacilllus Pseudomonas
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Plant viruses are transmitted primarily by ______.Wind Water Bacteria insects Bats
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Which of the following is not a problem created by fungi?Cause diseases of humans Attack food and increase spoilage Cause Dutch
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A general feature of the kingdom Fungi is that they ______Are prokaryotic Lack swimming reproductive cells Are predominate cell
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When zygosporangium wall gets thick and is in a resting stage, it is called a _____.Zygohypae Zygogametangium Zygospore Zygomote
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Which of the following characterizes the life cycle of diatoms?Predominantly haploid Predominantly diploid Alternation of
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2. 132 views