Recognize the two types of spores that occur in the seedplant life cycle, and describe where they develop and whatrole they play in the life cycle.

Q: How Long Can Seeds Remain Viable in Dormancy?

A: The phase of an organism's lifespan in which processes, such as physical activities, development,…

Q: Sketch a seed of a gymnosperm and of a monocot. Label the embryo, seed coat, and nutritive tissue…

A: The living world is categorized into five major kingdoms. Kingdom Plantae is a diverse group…

Q: Differentiate the following treatments based on the effect of light on monggo (Vigna radiata) seed…

A: Monggo (Vigna radiata) is also called as Mung bean. For its edible seeds and sprouts, the mung bean…

Q: Draw a simple diagram illustrating a heterosporous life cycle. Include the sporophyte generation,…

A: Ferns are mostly homosporous plants that form only a single type of spores.

Q: Explain the role of pollen grain ?

A: Pollen grains are the minute structures present in the anther of the plant. The main role of the…

Q: Identify different types of fruits

A: BASIC INFORMATION FRUITS  It is a structure which is responsible for carrying seeds in the…

Q: Explain the arrangement of nuclei in the mature angiosperm embryo sac (megagametophyte) and list…

A: The process of maturation of the female gametophyte or mega gametophyte in angiosperms is known as…

Q: What prevents seeds dispersed in autumn from germinating immediately, only to die in the winter?

A: Plants are autotrophs. They are called so because they are not dependent on other organisms and can…

Q: The mature sporophyte starts to form sporangium that houses sporocyte (precursor cells in the…

A: The seedless vascular plants are those plants that will not produce seeds. They reproduce through…

Q: Detail the causes and mechanisms of sporogenesis and germination.

A: Causes of sporogenesis are scarcity of food and water, continuous exposure to UV light, mutation and…

Q: Explain the germination process of a typical seed (monocot or eudicot) by addressing hormonal…

A: Germination is the process of seeds developing into new plants. All seeds need water, oxygen and the…

Q: Growth of pollen tube towards embryo sac is (a) chemotropic (b) thigmotaxis (c) geotropic (d) none…

A: Answer is a.) chemotropic.

Q: In which type of germination do cotyledons remain below the soil and surfaces?

A: Hypogeal germination Hypogeal germination means the below-ground germination, where the cotyledons…

Q: V [ Select ] dormancy germination both dormancy and germination

A: Plant signalling molecules a hormones and control many important aspects of plant root such as…

Q: Explain the changes that occur when a seed germinates, and state the environmental conditions…

A: Seed germination is the process of development of whole plant through the seed, during this process…

Q: Explain what phytochrome is and how it functions

A: Photoperiodism is the effect or requirement of relative length of day and night on flowering.  The…

Q: Mature sporophytes Look up the terms frond, rhizome, and roots, and define them. These three…

A: * Fronds means they are the leaves of ferns composed of a leafy blade and petiole. *Rhizomes are…

Q: Illustrate the Eudicot seed structure and germination ?

A: The plants are formed of roots, stem, leaves, fruits and flowers. The conduction system in plants is…

Q: Explain the role of tapetum in the formation of pollen-grain wall

A: Megasporangium and microsporangium are reproductive structures in higher plants that take part in…

Q: What is dispersal of seeds by explosive mechanism?

A: Seed dispersal is the spread or transport of seeds distant from the parent plant. Plants have…

Q: Draw a well labeled diagram of longitudinal section of pistil showing pollen germination?

A: In a plant flower act as a reproductive part. Carpel is a female reproductive organ of flowering…

Q: Detail the causes and mechanisms of sporulation and germination.

A: Several bacteria are capable of forming dormant structures known as spores. The process by which…

Q: Explain how seeds differ from spores and provide the evolutionary significance of the seed coat

A: A seed can be defined as the specialized structure which consists of embryo and stored food enclosed…

Q: Observe a portion of the longitudinal section of Equisetum strobilus. Draw and Label the following…

A: The hosetails are living member of the group sphenopsida, are found in damp and shady regions of…

Q: Explain why some seeds undergo dormancy, and give someexamples of triggers for germination.

A: The embryonic stage of a plant's life is represented by the seed. The embryo (immature seed),…

Q: Identify the structure of the monocot stem (labeled 1-5).

A: Explanation: Epidermis is the outermost layer of stem, root and leaves that protect the plant…

Q: Define Pollen grain.

A: Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae. The…

Q: Is meosis produce pollen grain?

A: Meiosis is a type of cell division in which a parent cell divides into four daughter cells. The…

Q: Draw DENDROBIUM FLOWER according to its sexuality

A: Dendrobium genus is the kind of orchids. It is an epiphyte. It is able to absorb the nutrients with…

Q: Identify the response of pollen tube movement towards ovule. A. autotropism B. phototropism C.…

A: As per our guidelines we are supposed to answer only ? One question ( if there are multiple…

Q: Explain the structure of the pollen.

A: Pollen grains are microscopic structures that are responsible for transporting the male reproductive…

Q: Describe the internal morphology of different kinds of seed.

A: Seed Morphologically, ripened ovule is known as seed. In other words, seed is a mature,…

Q: ) aggregate fruit

A: A fruit is developed from a seed after pollination. It is a dry or fleshy ripened ovary. Fruit is a…

Q: Describe the gymnosperm life cycle.

A: Gymnosperms can be defined as seed-producing plants. These seeds are not enclosed in the seed coat.…

Q: Define ovule in gymnosperm?

A: A group of seed producing plants is called Gymnosperms. The word 'Gymnos' refers to 'naked' and…

Q: . Label the following structures of a Cross-section of a Monocot Stem in Primary Growth  2. Briefly…

A: Structures found in a cross-section of a Monocot stem are: 1. Pericycle or parenchymal cells.2.…

Q: Describe the difference between an aggregate and multiple fruit.

A: A flower is reproductive part of flowering plants. Angiosperms produce these multiple and aggregate…

Q: Differentiate between(a) Racemose and cymose inflorescence(b) Fibrous root and adventitious root(c)…

A: A flower is the reproductive structure of plants. It biological function is to aid the fertilization…

Q: Name three advantages of seeds over spores interms of the probability that the next sporophyte…

A: Probability is the term used to portray the probability that some occasion will happen.…

Q: Compare and contrast the germination of a typical monocot and eudicot seed by addressing the…

A: Germination It is defined as the process through which an organism grows from a spore or seed.…

Q: Of the four parts of alteration of generations cycle (embryo/sporophyte, spore, gametophyte,…

A: ALTERATION OF GENERATION:- It is also known as heterogenesis, in which an organism will have…

Q: how seeds develop

A: Seed is a protective outer covering of a plant, and is formed after reproduction takes place in the…

Q: Define leaf abscission, and explain why it occurs and what physiological and anatomical changes…

A: Plants are non-motile living beings, which are autotrophic due to the presence of chlorophyll…

Q: State the structures/features observed in early and late stages of eudicot seed development.

A: EARLY STAGE:- ZYGOTE:- male gamete and female gamete are fused and form single celled zygote.…

Embryology