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NEET - Grade 12 - Biology - Microbes in Human Welfare - Introduction and Snapshot of Microbes in Human Welfare - Study ref# 965

Introduction: Besides macroscopic plants and animals, microbes are the major components of biological systems in this earth. You have studied about the diversity of living organisms in Class XI. Do you remember which Kingdoms among the... read more

NEET - Grade 11 - Biology - Biological Classification - Importance and Snapshot of Biological Classification - Study ref# 740

Introduction: Since the dawn of civilization, there have been many attempts to classify living organisms. It was done instinctively not using criteria that were scientific but borne out of a need to use organisms for our own use – for ... read more

NEET - Grade 11 - Biology - Biological Classification - Importance and Snapshot of Biological Classification - Study ref# 741

Following sections must be covered to understand the Biological Classification: 1. Kingdom Monera 2. Kingdom Protista 3. Kingdom Fungi 4. Kingdom Plantae 5. Kingdom Animalia 6. Viruses, Viroids and Lichens... read more

NEET - Grade 11 - Biology - Plant Kingdom - Importance and Snapshot of Plant Kingdom - Study ref# 743

Introduction: In this chapter, we will deal in detail with further classification within Kingdom Plantae popularly known as the ‘plant kingdom’. Let us look at classification within angiosperms to understand some of the concerns that i... read more

NEET - Grade 11 - Biology - Plant Kingdom - Importance and Snapshot of Plant Kingdom - Study ref# 744

Following sections must be covered to understand Plant Kingdom: 1. Algae 2. Bryophytes 3. Pteridophytes 4. Gymnosperms 5. Angiosperms 6. Plant Life Cycles and Alternation of Generations... read more

NEET - Grade 11 - Biology - Plant Kingdom - Target Setup for Plant Kingdom - Study ref# 745

Student requires to achieve the following milestones to get better grip over Plant Kingdom. The milestones / targets are as follows:Starting Point: Days 0Test TypeAppear on TestTarget TestsScorePractice Test000%Chapter Test000%Subject... read more

NEET - Grade 11 - Biology - Biological Classification - Study ref# 3474

What was the criteria of five Kingdom classifications? Name the Kingdoms and write down three important features of each Kingdom with examples. Answer: The main criteria for classification used by R.H. Whittaker in his five Kingdom classification sys... read more

NEET - Grade 11 - Biology - Biological Classification - Study ref# 3492

Write two key features of kingdom protista? Answer: They lack tissue organization which is mainly observe in eukaryotic organisms viz. fungi, plants and animals. They mainly contain well defined nucleus and some membrane bound organelles. Some may co... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3508

What is meant thallus? Answer: A plant body undifferentiated into stem, root, or leaf. This is called a thallus. It is an undifferentiated vegetative tissue of some non-mobile organisms. Characteristic of the thallophytes. ... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3509

Name one unicellular green algae? Answer: Blue-Green Algae/Cyanobacteria is a unicellular green algae.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3510

What is the reserve form of food in green algae? Answer: Food is stored as starch in pyrenoids (pertinacious cores within the plastids).... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3511

What name is given to the male and female sex organs of the green algae? Answer: The male sex organ is known as antheridia and the female sex organ is known as oogonia. ... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3512

What type of sexual reproduction is in Volvox? Answer: Individual cells of Volvox look very much like Chlamydomonas, but they form into colonies. Reproduction can be either sexual or asexual. Sperm masses, eggs, zygotes, or daughter colonies may form... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3513

Name the gelatinous substance that cover the cell wall in Phaeophyceae? Answer: The cell wall is made of cellulose and often covered by phcocolloids like algnic acid and fucinic acid.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3514

Name the reserve form of food in Phaeophyceae? Answer: The reserve form of food in Phaeophyceae is laminarin and manitol.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3515

Name one red algae that is used as human food? Answer: Porphyra is one red algae used for human consumption.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3516

In which form the food material is stored in red algae? Answer: The reserve food material is floridan starch which resembles glycogen.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3517

What is the name of the male and female sex organs in red algae? Answer: Male sex organ is called spermatogonium and female sex organ is called carpogonium.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3518

What are pigments present in the red algae? Answer: r-phycoerythrin, r-phycocyanin, chlorophyll-a and beta carotene are the pigments that are usually found in red algae.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3519

What is the name given to the sex organs of bryophytes? Answer: The male sex organs are antheridia and the female sex organ are archaegonium.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3520

Name the dominant life cycle of bryophytes? Answer: The dominant phase of bryophytes are gametophyte and the sporophyte is borne on the gametophyte.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3521

Name a dioceous and a monoceous liverwort? Answer: A dioceous liverwort is Marchantia and a monoceous liverwort is Riccia.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3522

Write the scientific name of the moss that provides peat or used as fuel? Answer: Sphagnum sp is commonly used as peat or fuel.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3523

What are the two phases of gametophytic life cycle of Funaria sp? Answer: The two phases of life CYCLE of Funaria sp are haploid phase and a diploid phase.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3524

What is the ecological significance of mosses? Answer: There is a substantial market in mosses gathered from the wild. The uses for intact moss are principally in the florist trade and for home decoration. Decaying moss in the genus Sphagnum is also ... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3525

What are sporophylls? Answer: Leaf in ferns and mosses that bears the sporangia. A sporophyll is a leaf that produces spores. Sporophylls are part of the diploid sporophyte generation, and the spores are produced by meiosis and will germinate to prod... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3526

What is strobilus in plants like Selaginella? Answer: A strobilus (plural strobili) is an organ of many plants that contains the reproductive structures. Strobili are ordinarily called cones in many of these groups. Strobili are characterized by a ce... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3527

What is siphonogamy? Answer: Delivery of gametes to the egg cells by the pollen tube.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3528

What are gymnosperms? Answer: A plant, such as a cycad or conifer, whose seeds are not enclosed within an ovary. Gymnosperms (Gymnospermae) are a group of seed-bearing plants with ovules on the edge or blade of an open sporophyll, the sporophylls usu... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3529

Write the scientific name of giant rose wood tree? Answer: The giant sequoia or big tree (Sequoia gigantea) is the other name of giant red wood tree.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3530

What is an ovule? Answer: An ovule is a structure found in seed plants that develops into a seed after fertilization.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3531

What are angiosperms? Answer: Angiosperm, term denoting seed plants in which the ovules, or young seeds, are enclosed within the ovary (that part of the pistil specialized for seed production), in contrast to the gymnosperms, in which the seeds are n... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3532

What is a flower? Answer: The reproductive structure of some seed-bearing plants, characteristically having either specialized male or female organs or both male and female organs, such as stamens and a pistil, enclosed in an outer envelope of petals... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3533

Name the male and female sex organs of a flower? Answer: The male gametes in flowers are the pollen, while ovules are the female gametes. Pollen from one plant fertilizes the ovules of another plant through flowers, in the cross-fertilization method ... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3534

What are microsporangia? Answer: Microsporangium is a sporangium in ferns and clubmosses that produces numerous minute spores that germinate into male gametophytes.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3535

Define pollination? Answer: The transfer of pollen from a stamen to a pistil; fertilization in flowering plants.... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3536

What is algae? Where are they found? What are the various forms and sizes of algae? Answer: Algae are chlorophyll containing autophytic members of the division thallophytic comprising large assemblage of comparatively simple plants of different forms... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3537

How do algae multiply? What are the three types of fusion? Define each. How are algae beneficial? Answer: The algae reproduction by:–Vegetative method, asexual method and sexual method.Vegetative reproduction - In this method new plants are produc... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3538

Classify algae and compare their features. Give examples of each. What are the shapes of chloroplasts found in chlorophyceae? Answer: Algae can be classified into three main classes: a) Chlorophyceae b) Phaeophyceae c) RhodophyceaeTheir main featu... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3539

What are pyrenoids? Briefly discuss the structure of plane body in Phaeophyceae. What is the sexual reproduction process in Rhodophyceae? Answer: Pyrenoids are storage bodies located in the chloroplasts one or more in number in most of the chlorophyc... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3540

What are pyrenoids? Briefly discuss the structure of plane body in Phaeophyceae. What is the sexual reproduction process in Rhodophyceae? Answer: Pyrenoids are storage bodies located in the chloroplasts one or more in number in most of the chlorophyc... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3541

Mosses help prevent soil erosion how? What are the two types of bryophytes? Describe reproduction in bryophytes with appropriate description of sex organs. Answer: Mosses have a great ecological importance as they help to prevent soil erosion. The p... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3542

1. Who is considered as the first terrestrial plants to possess vascular tissues? 2. Define: a) Microspores b) Megaspores c) Sporophylls d) Strobili e) Prothallus f) Microphylls g) Macrophylls. Answer: 1. Evolutionarily pteridophytes are cons... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3543

What are the four classes of pteridophytes? What are gymnosperms? Give a brief account on its characteristic features. Answer: The four classes of pteridophytes are: a) Psilopsida (Psilotum) b) Lycopsida (Selaginella, lycopodium) c) Sphenopsida (E... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3544

What is a precursor to seed habit? What is double fertilization? Where can it be observed? Explain the process. Answer: In Pteridophytes, the development of the zygotes into young embryos takes place within the female gametophytes. This is considered... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3545

What is alternation of generations? Write a brief account on – a) Haplontic life cycle b) Diplentic life cycle c) Haplo – Diplentic life cycle. Answer: The life cycle of some plants show a distinct alternation of two generations. The plant body is th... read more

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