turbzdon

Which of the following is not an element? Water Oxygen Carbon Chlorine Hydrogen

2 years ago

Which of the following does the phospholipid bilayer prevent from diffusing out of the plasma membrane? Ions Amino acids Carbohydrates Nucleic acids All of the above

2 years ago

The continuous cytoplasm in a set of cells connected by plasmodesmata is called a _______. Symplast Apoplast Plasmalemma Protein channel Rough endoplasmic reticulum

2 years ago

Which of the following adds rigidity to the secondary cell walls? Suberin Lignin Glucose Cutin Cellulose

2 years ago

Cell walls tend to limit cell expansion when a cell is placed in a hypotonic solution. The pressure created by the passive movement of water molecules into the cell is called ________. Turgor pressure Osmotic pressure Primary wall pressure Osmotic pressur...

2 years ago

Which of the following sequences illustrates the composition of a cell wall building from its smallest unit to its largest unit? Glucose, microfibril, cellulose, cell wall Microfibril, cellulose, glucose, cell wall Cellulose, glucose, microfibril, cell wa...

2 years ago

Which of the following statement best describes the golgi apparatus? Acts to complex protein with DNA Controls transcription of RNA Site of protein synthesis Site of polyribosome attachment Directs the flow of proteins from the ER to their destinations in...

2 years ago

Which of the following organelles is likely to be involved in controlling cell functions? Golgi apparatus Ribosome Mitochondria Nucleus Chloroplast

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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 are single-membraned organelles Both have unique DNA Both contain ribosomes

2 years ago

In which of the following would you not find compartmentalization of enzymatic reactions in a plant cell? Mitochondria Glyoxysomes Peroxisomes Lysomes Nucleus

2 years ago

Which cytoskeleton element forms the basis of cilia and flagella? Myosin Cytoplasmic streaming Microfibrils Microtubules Actin

2 years ago

Which of the following is part of the asexual cell cycle? G1, S, G2, mitosis and cytokinesis Interphase, mitosis, and cytokinesis The interval of time between the formation of a cell and its division to form two new cells Pro-, meta-, ana-, and telophase...

2 years ago

G1 and G2 arrest can occur if ________ is missing: Glucose Sucrose Starch Chlorophyll Ribosome

2 years ago

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 Positioning of chromosomes All of the above

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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 In some part of the endomembrane system As part of the nucleus In a mitochondrion

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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 conducting tissue Distributes solutes such as sugar

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The following description best fits which simple tissue: walls of alternating pectin and cellulose, may contain chloroplasts at maturity walss thickened in the corners? Parenchyma Aerenchyma Sclerenchyma Collenchyma Periderm

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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: tracheid Secondary xylem: cylinder pattern Slime: P-protein

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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 Transport of sugar Transport of minerals

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Which of the following would you not find in the complex tissue called epidermis? Trichomes Guard cell Cuticle Subsidiary cell Albuminous 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 meristem-primary tissue Secondary meristem- apical meristem

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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 perennials Plans with primary meristems and plants with secondary meristems Herbaceous plants and woody plants

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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 meristems Primary meristems Layers of periderm

2 years ago

How is alternate phylllotaxis defined? Three or more leaves per node, the angle of divergence varying One leaf per node, 137.5 degree angle of divergence between leaves One leaf per node, and the leaves positioned 180 degrees from each other Two leaves pe...

2 years ago

Which is not a difference between monocot and dicot stems? Ground tissue surrounds the vascular bundles Scattered vascular bundles Stems are narrower at the apex than at the base Primary xylem Primary phloem

2 years ago

The cell types found in secondary phloem include ____. Everything between the vascular Cambium and the outside of the woody stem Only the secondary phloem Xylem and phloem Xylem, phloem and periderm

2 years ago

Which is the correct order of the tissues from the outside to the center of a stem? Xylem, cambium, phloem, pith Cambium, phloem, xylem, pith Phloem, xylem, cambium, pith Phloem, cambium, xylem, pith Xylem, phloem, cambium, pith

2 years ago

Which is not an economic value of woody stems? Wood Natural rubber Pulp Coffee Chewing gum

2 years ago

What are the vascular bundles of stems that network into the attached leaves called? Branch traces Leaf traces Periderm traces Bud scales Node extensions

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It is only during ______ that the chloroplasts within plant cells trap light energy and convert it into chemical energy. Respiration Transpiration Photosynthesis Leaf formation Plant growth

2 years ago

A single ______ has its leaflets diverging from a single point. Monocot leaf Palmately compound leaf Pinnately compound leaf Simple leaf Simple compound leaf

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A _____ has is leaflets arranged along an axis Monocot leaf Pinnately compound leaf Palmately compound leaf Simple leaf Simple compound leaf

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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

2 years ago

Trichomes are associated with _______. Xylem Epidermis Periderm Phloem Parenchyma

2 years ago

The principal photosynthesis cells of a leaf are found in the ________. Upper epidermis and palisade mesophyll Upper and lower epidermis Palisade mesophyll and spongy mesophyll Spongy mesophyll and lower epidermis Upper epidermis and spongy mesophyll

2 years ago

In the early stages of development, leaves are called_____.

2 years ago

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

2 years ago

Which of the following is not a characteristic of hydrophyte plants? An abundance of fibers in leaves Leaves often deeply lobed Thin cuticle Thin leaves None of the above

2 years ago

Roots are involved in all the following except _______. Food storage Food production Support Anchorage Absorption and conduction

2 years ago

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 center Region of elongation Region of maturation

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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 center Region of elongation Region of maturation

2 years ago

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 the phloem cells On the radial and transverse walls

2 years ago

During the secondary growth of roots, which of the following is true? Continued growth expands the root and finally causes the splitting, sloughing off, and destruction of the cortex and epidermis A pith forms in the middle of the root Primary xylem occup...

2 years ago

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

2 years ago

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

2 years ago

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 carbohydrates and proteins Are stored in the vacuoles of the cell Are oxygen and glucose Both a and c are correct

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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 All of the above

2 years ago

Which of the following causes transpiration? Hydrogen bonding The drying power of air Cohesion and adhesion of water molecules Water potential All of the above

2 years ago

Usually, during the daytime _______. Carbon dioxide accumulates in leaf cells Turgor pressure in the guard cell decreases Water and potassium move into the guard cell The guard cells close Water is conserved

2 years ago

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 Transpiration None of the above

2 years ago

The movement of materials already in the phloem is described as _______. Source-to-sink Pressure flow Cohesion-tension Active transport Both a and b

2 years ago

A stamen is ___________. The site where microspores are produced Part of the vegetative phase of an angiosperm The mature male gametophyte Composed of a stigma, style, and an ovary All of the above

2 years ago

The female gametophyte plant in a flowering plant life cycle is represented by the ______. Gynoecium Androecium Pollen grain with pollen tube Zygote Embryo sac with its included nuclei

2 years ago

Which of the following choices represents the correct sequence? Microspores- meiosis- gametophyte-sperm Meiosis-microspores-gametophtye-sperm Gametophyte-meiosis-megaspores-eggs Meiosis-gametophtye-megaspores-eggs None of the above

2 years ago

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

2 years ago

Bees will not visit flowers of what colour? Red Blue Yellow Purple White

2 years ago

Dormancy in a seed may be broken by _______. Fire Cold treatment Scarring Light All of the above

2 years ago

The first indicator of germination is ________. A bursting seed coat Imbibition A downward-growing radicle Enzyme activation Radicle swelling and growth

2 years ago

A fruit formed from several ovaries in one flower could be a(n)_______. Multiple fruit Simple fruit Aggregate fruit Accessory fruit Berry

2 years ago

Which of the following is not a common animal dispersal vectors? Birds Bats Fish Lizards Rodents

2 years ago

Auxin is normally produced by ______. Flowers Young leaf primordia Young stems Young roots Older leaves

2 years ago

What would you never find in a virus? Ribosome A protein coat DNA RNA Genes for enzymes

2 years ago

During binary fission which choice does not occur? Cells split in two DNA replicates Chromosomes is attached to the plasma membrane New cross wall forms between new chromosomes. Chromosomes are pulled apart by spindle apparatus

2 years ago

Select the mismatched pair: Chemolithotroph- chemical rock Heterotroph- derives energy from photosynthesis Heterotroph- other feeder Phototroph- derives energy absorbing light Phototroph-light

2 years ago

Which genus of bacteria is symbiont with legumes? Halobacterium Clostridium Rhizobium Bacilllus Pseudomonas

2 years ago

Plant viruses are transmitted primarily by ______. Wind Water Bacteria insects Bats

2 years ago

Which of the following is not a problem created by fungi? Cause diseases of humans Attack food and increase spoilage Cause Dutch Elm disease Produce greenhouse gases Cause wheat rust

2 years ago

A general feature of the kingdom Fungi is that they ______ Are prokaryotic Lack swimming reproductive cells Are predominate cell wall component of cellulose Are probably more closely related to plants than animals None of the above

2 years ago

When zygosporangium wall gets thick and is in a resting stage, it is called a _____. Zygohypae Zygogametangium Zygospore Zygomote Zygophore

2 years ago

Which of the following characterizes the life cycle of diatoms? Predominantly haploid Predominantly diploid Alternation of generations Isomorphic generations Heteromorphic generations

2 years ago