Biology Questions
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Questions and Answers

Which of the following is an example of a Chrysophyte?

  • Penicillium
  • Diatoms (correct)
  • Trypanosoma
  • Euglena

What is the cell wall of diatoms made of?

  • Pellicle
  • Cellulose
  • Protein
  • Silica (correct)

Which organism possesses a stiff cellulose cell wall?

  • Euglenoids
  • Diatoms
  • Phycomycetes
  • Dinoflagellates (correct)

Which of these is a flagellated protozoan?

<p>Trypanosoma (C)</p> Signup and view all the answers

Which of the following is an example of asexual spores in fungi?

<p>Conidia (A)</p> Signup and view all the answers

Which of the following is considered the first successful land plant?

<p>Pteridophytes (A)</p> Signup and view all the answers

Which plant has microphylls?

<p>Selaginella (D)</p> Signup and view all the answers

Which of these plants has mycorrhiza?

<p>Pinus (D)</p> Signup and view all the answers

Which of the following exhibits cellular grade organization?

<p>Porifera (D)</p> Signup and view all the answers

Which of the following animals are acoelomates:

<p>Platyhelminthes (C)</p> Signup and view all the answers

Which of the following is a disease caused by prions?

<p>Bovine spongiform encephalopathy (BSE) (B)</p> Signup and view all the answers

Which of these plants is an example of an insectivorous plant?

<p>Venus fly Trap (A)</p> Signup and view all the answers

Which algae demonstrates isogamous non-motile reproduction?

<p>Spirogyra (B)</p> Signup and view all the answers

Which of the following is classified under Deuteromycetes?

<p>Trichoderma (B)</p> Signup and view all the answers

Which of the following is a liverwort?

<p>Marchantia (B)</p> Signup and view all the answers

Which of the following organisms reproduces through budding?

<p>Yeast (B)</p> Signup and view all the answers

In the five-kingdom classification system, what is NOT a basis for classification?

<p>Size of organism (B)</p> Signup and view all the answers

Which kingdom do bacteria belong to?

<p>Monera (C)</p> Signup and view all the answers

What is the primary component of the cell wall in fungi?

<p>Chitin (D)</p> Signup and view all the answers

Which of the following is an example of a bacterial disease?

<p>Cholera (B)</p> Signup and view all the answers

Which of these seeds is non-endospermic?

<p>Bean (D)</p> Signup and view all the answers

What type of fruit is a mango?

<p>Drupe (B)</p> Signup and view all the answers

What is the ground tissue system?

<p>All tissues between the epidermis and vascular tissue. (C)</p> Signup and view all the answers

Which type of vascular bundle arrangement is typically found in monocot stems?

<p>Scattered (D)</p> Signup and view all the answers

Where can ciliated epithelium be found?

<p>Fallopian tube (D)</p> Signup and view all the answers

Which of these animals is classified under class Aves?

<p>Pigeon (A)</p> Signup and view all the answers

Which of the following mammals is viviparous?

<p>Macropus (B)</p> Signup and view all the answers

What type of root system does wheat have?

<p>Fibrous root (A)</p> Signup and view all the answers

What is the primary function of pneumatophores in Rhizophora?

<p>Gas exchange (B)</p> Signup and view all the answers

Which plant exhibits alternate phyllotaxy?

<p>China Rose (A)</p> Signup and view all the answers

Which type of flower symmetry is exhibited by mustard plants?

<p>Actinomorphic (B)</p> Signup and view all the answers

Which of the following plants has asymmetrical flowers?

<p>Canna (C)</p> Signup and view all the answers

What type of ovary does a hypogynous flower possess?

<p>Superior Ovary (C)</p> Signup and view all the answers

In valvate aestivation, as seen in Calotropis, what is the arrangement of sepals or petals?

<p>Touching at margins without overlapping (D)</p> Signup and view all the answers

What is the term for stamens attached to petals?

<p>Epipetalous (C)</p> Signup and view all the answers

Which term describes a sterile stamen?

<p>Staminode (A)</p> Signup and view all the answers

What type of gynoecium is found in a mustard plant?

<p>Syncarpous (C)</p> Signup and view all the answers

Which family does wheat (Triticum aestivum) belong to?

<p>Gramineae (A)</p> Signup and view all the answers

Which phylum includes organisms with a pseudocoelom?

<p>Aschelminthes (B)</p> Signup and view all the answers

Which of the following organisms belongs to the phylum Porifera?

<p>Bath Sponge (C)</p> Signup and view all the answers

To which phylum does the organism Physalia belong?

<p>Coelenterata (B)</p> Signup and view all the answers

Which of the following is a common name for organisms in the phylum Annelida?

<p>Segmented Worms (B)</p> Signup and view all the answers

Which of the following animals is a Platyhelminthes?

<p>Taenia (A)</p> Signup and view all the answers

Which of these animals is an example of an Arthropoda?

<p>Honey bee (D)</p> Signup and view all the answers

Which of the following organisms belongs to the phylum Mollusca?

<p>Sea hare (B)</p> Signup and view all the answers

Which of the following is an example of a reptile?

<p>Turtle (D)</p> Signup and view all the answers

Which of the following is a freshwater fish?

<p>Rohu (A)</p> Signup and view all the answers

Which of these animals has a diploblastic organization?

<p>Sycon (A)</p> Signup and view all the answers

Where is smooth muscle found in the body?

<p>Visceral organs (D)</p> Signup and view all the answers

What type of junction is present in cardiac muscle?

<p>Intercalated disc (A)</p> Signup and view all the answers

What is considered the smallest cell?

<p>Mycoplasma (C)</p> Signup and view all the answers

Which of these structures stores carbohydrates?

<p>Amyloplast (D)</p> Signup and view all the answers

Which of these cell organelles is surrounded by a single membrane?

<p>Lysosome (C)</p> Signup and view all the answers

Flashcards

Pteridophytes

Plants that successfully adapted to land, known for their vascular system.

Strobili (Cones)

A structure in some pteridophytes like Selaginella and Equisetum that contains spores.

Gymnosperm Characteristics

Gymnosperms have exposed seeds, are typically woody plants, and include both branched and unbranched species.

Tissue Grade of Organization

Animals where cells are arranged as functional tissues.

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Acoelomates

Animals lacking a body cavity between the body wall and the digestive tract.

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Plankton

Passively floating organisms, like diatoms.

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Gonyaulax

Red dinoflagellates that can cause red tides.

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Pellicle

A protein-rich layer found in euglenoids instead of a cell wall.

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Fungi Classification

Classification based on mycelium structure, spore formation, and fruiting bodies.

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Rhizopus

Common bread mold and a type of phycomycete.

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Taxon

A category used to classify organisms.

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Five Kingdom Classification

Classification system with five kingdoms.

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Basis of Five Kingdom Classification

Cell structure, Body organization, Mode of Nutrition, Reproduction, Phylogenetic relationship.

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Halophiles

Live in extreme salty conditions.

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Heterocyst

Use heterocysts to fix nitrogen.

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Basidiomycetes

A class of fungi including mushrooms, smuts, rusts, puffballs, and bracket fungi.

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Deuteromycetes

Fungi where sexual reproduction is not observed. Examples: Alternaria, Colletotrichum, Trichoderma.

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Insectivorous Plants

Plants that trap and digest insects for nutrients. Examples: Bladderwort, Venus flytrap.

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Prions

Having similar size to virus.

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Isogamous (Motile)

Ulothrix exhibits this type of sexual reproduction, where gametes are motile and similar in size.

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Primary Root

Direct elongation of the radicle forming the primary root.

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Adventitious Root

Roots that develop from places other than the radicle.

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Stem Tendril

Modified stems that help plants climb, developing from axillary buds.

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Reticulate Venation

Venation where veins are arranged in a net-like pattern.

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Alternate Phyllotaxy

Leaf arrangement where there is one leaf per node.

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Endospermic Seeds

Seeds with a stored food supply (endosperm).

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Non-Endospermic Seeds

Seeds lacking a distinct endosperm at maturity; nutrients are stored in the cotyledons.

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Drupe Fruit

A fruit in which an outer fleshy part surrounds a single hard shell (pit) with a seed inside.

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Sclereids

Short, irregular sclerenchyma cells found in various plant tissues, providing rigidity.

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Guard Cell (Dumbbell Shaped)

Specialized epidermal plantroot cells that regulate the opening and closing of stomata in grasses.

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Smallest Cell

Mycoplasma are the smallest known cells.

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Largest Single Cell

The egg of an ostrich.

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Inclusion Bodies

Phosphates, cyanophycean granules, and glycogen granules.

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Amyloplast Function

Carbohydrate storage (e.g., in potatoes).

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Active Transport

Against a concentration gradient, powered by ATP.

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Actinomorphic

Having floral organs arranged in a radial pattern, like a star.

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Zygomorphic

Flowers with bilateral symmetry, divisible into only two similar halves.

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Hypogynous Flower

Flower with a superior ovary; other floral parts attach below the ovary.

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Perigynous

Flower with an ovary that is half-inferior; floral parts are attached around the middle of the ovary.

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Epigynous

Flower with an inferior ovary; floral parts appear to arise from the top of the ovary.

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Valvate Aestivation

Petals or sepals meet at edges without overlapping.

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Twisted Aestivation

One margin of the petal or sepal overlaps the next one.

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Imbricate Aestivation

Aestivation where margins of petals or sepals overlap but not in any specific direction.

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Diploblastic

Animals with two embryonic germ layers: ectoderm and endoderm. Examples include Porifera, Coelenterata, and Ctenophora.

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Triploblastic

Animals with three germ layers: ectoderm, mesoderm, and endoderm. Includes Platyhelminthes to Chordata.

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Pseudocoelomate

Animals that have a false coelom between the mesoderm and endoderm. Includes Aschelminthes (e.g., Ascaris).

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Phylum Porifera

Sponges; characterized by pores and a lack of true tissues. Examples: Sycon, Spongilla, Euspongia.

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Phylum Coelenterata

Cnidarians characterized by stinging cells (cnidocytes). Examples: Physalia, Adamsia, Pennatula.

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Phylum Platyhelminthes

Flatworms; characterized by a flat body and lack of a coelom. Examples: Taenia, Fasciola.

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Phylum Aschelminthes

Roundworms; characterized by a pseudocoelom. Example: Ascaris, Wuchereria, Ancylostoma.

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Phylum Annelida

Segmented worms; characterized by metameric segmentation. Examples: Nereis, Pheretima, Hirudinaria.

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Study Notes

Pteridophytes

  • Pteridophytes were the first successful land plants.
  • Equisetum (horsetail) are Pteridophytes with cone and rhizome.
  • Selaginella and Equisetum are Pteridophytes that have Strobiti (or cones).
  • Ferns feature microphylls.
  • Selaginella and Salvinia are heterosporous.
  • Dryopteris and Pteris are homosporous.

Gymnosperm

  • Wolffia and Eucalyptus are the smallest and tallest trees, respectively.
  • Pinus cedrus is a branched gymnosperm.
  • The unbranched version is Cycas.
  • Mycorrhiza is present in Pinus.
  • Coralloid roots are present in Cycas.
  • Sequoia are the largest gymnosperm.
  • Pinus is monoecious.
  • Cycas is dioecious.
  • Male and female cones are in Pinus.
  • Only male cone is present in Cycas.

Angiosperm

  • Wolffia is the smallest plant.
  • Eucalyptus is the tallest plant.

Animal Kingdom

  • Protozoan exhibit the Protoplasmic level of organization.
  • Porifera exhibit the cellular grade of organization.
  • Coelenterata and Ctenophora exhibit tissue grade organization.
  • Platyhelminthes show an organ level of organization.
  • Aschelminthes to chordata exhibit the organ system level of organization.
  • Porifera are mostly asymmetrical.
  • Coelenterata, Ctenophora, and adult Echinodermata have radial symmetry.
  • Platyhelminthes to Chordata, and larva of Echinoderms display bilateral symmetry.
  • Platyhelminthes are acoelomates.

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Description

A collection of biology questions covering topics such as Chrysophytes, diatoms, cell walls, protozoans, fungi spores, land plants, microphylls, mycorrhiza, cellular organization, acoelomates, prion diseases, insectivorous plants, algae reproduction, Deuteromycetes, liverworts, budding organisms, five-kingdom classification, and bacterial kingdoms. These questions test knowledge across various biological classifications and characteristics.

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