No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question

    • Posted by Acharya Singhpur 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 4 answers

    Pawni Chaudhary 6 years, 3 months ago

    Stomata are tiny pores present in the epidermis of leaves and helps in exchange of gases

    0Thank You

    Mehabub Hassan 6 years, 3 months ago

    Strometa::-there are some pores present in the epidermirs of leaves which helps in gaseous exchange that is transpiration occurs through this pores .stomata consists of a pair of specialised cell called guard cell

    0Thank You

    Nisha Butar 6 years, 3 months ago

    Stomata help leaves in exchange of gase and also help in remove extra water and extra metarial

    1Thank You

    Varghese Enjikkal 6 years, 3 months ago

    Helps in the respiration

    0Thank You

    ANSWER

    • Posted by आदर्श त्रिपाठी 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Mehabub Hassan 6 years, 3 months ago

    1) virus can causes diseases in animals and plants. But viroids can causes disease only plants 2)Virus have protein coat but viroids do not have protein coat 3)Virus has genetic materials DNA orRNA.But Viroids have only RNA 3)Virus is larger than viroids but viroids is smaller than virus

    1Thank You

    ANSWER

    • Posted by Chhotan Manish 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 4 answers

    Tanashri Wagh 6 years, 2 months ago

    International code for zoological nomenclature

    0Thank You

    Nisha Butar 6 years, 3 months ago

    International Code for Zoological Nomenclatur.

    0Thank You

    Neha Gupta 6 years, 3 months ago

    Yha plants ka nomenclature kiya jata hai

    0Thank You

    Lakshya Aggarwal 6 years, 3 months ago

    International code of zoological nomenclature

    1Thank You

    ANSWER

    • Posted by Nikhil Gautam 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 2 answers

    Pawni Chaudhary 6 years, 3 months ago

    Seeds persue single cotyledon are monocot seeds and seeds which having 2 cotyledons are dicot seeds

    1Thank You

    Nisha Butar 6 years, 3 months ago

    Those seeds which having the one/single coteledon are called monocot/monocoteledon.ex-wheat,rice,maize,etc Those seeds which having two coteledon are called dicoteledon.ex-gram,pea,etc.

    1Thank You

    ANSWER

    • Posted by Anjali Singh 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 4 answers

    Pawni Chaudhary 6 years, 3 months ago

    Archaebacteria are primitive type of bacteria which can live on extreme of environmental condition

    0Thank You

    Mehabub Hassan 6 years, 3 months ago

    Archaebacteria are called primative bacteria.They can be present in extreme condition. There are three types of archaebacteria a) Methanogen:This bacteria is present in cowdung.They produces methane gas b)Thermoacidophilic:-This Bacteria can present in high temperature found in hot springs C) Halophilic:This bacteria is present in salty area

    0Thank You

    Nisha Butar 6 years, 3 months ago

    Archebacteria is an example of monera which is found in salty water,swamps,gut of cattle,termites.These are microscopic and prokaryotic

    0Thank You

    Kuki Reddi 6 years, 3 months ago

    type of monera

    3Thank You

    ANSWER

    • Posted by Kushagra Singh 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Pawni Chaudhary 6 years, 3 months ago

    Cyanobacteria Archaebacteria Actinomyto Mycoplasma Ricketsia

    2Thank You

    ANSWER

    • Posted by Shivam Ambrose 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 2 answers

    Pawni Chaudhary 6 years, 3 months ago

    Coz algae is microscopic and lived in colony

    0Thank You

    Nisha Butar 6 years, 3 months ago

    Because algae is microscopic and lived in colony .

    0Thank You

    ANSWER

    • Posted by Rinku Chauhan 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    The Hammer 6 years, 3 months ago

    Class 11 means for class 11 And class 12 means for class 12

    0Thank You

    ANSWER

    • Posted by Praveen Roy 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 2 answers

    Pawni Chaudhary 6 years, 3 months ago

    Taxonomic studies consider a grp of individual organisms with fundamental similarities as a species

    1Thank You

    Ritik Kumar Singh 6 years, 3 months ago

    Group of similar type of organism which can interbread together and produce fertile ofspring

    0Thank You

    ANSWER

    • Posted by Krishan Kumar 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 2 answers

    Pawni Chaudhary 6 years, 3 months ago

    Cell which have developed nucleus ,cytoplasm and membrane bounded well develop cell organelles

    0Thank You

    Ritik Kumar Singh 6 years, 3 months ago

    Cell having well developed nucleus cytoplasm and membrane bounded well develop cell organells

    0Thank You

    ANSWER

    • Posted by Deepu Sharma 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 2 answers

    Pawni Chaudhary 6 years, 3 months ago

    Dorsiventral leaves are found in dicots . The vertical section of a dorsiventral leaf contains three distinct parts 1 epidermis 2 mesophyll 3 vascular system

    0Thank You

    Yogita Ingle 6 years, 3 months ago

    Dorsiventral leaves are found in dicots. The vertical section of a dorsiventral leaf contains three distinct parts.

    [1] Epidermis: Epidermis is present on both the upper surface (adaxial epidermis) and the lower surface (abaxial epidermis). The epidermis on the outside is covered with a thick cuticle. Abaxial epidermis bears more stomata than the adaxial epidermis.
    [2] Mesophyll: Mesophyll is a tissue of the leaf present between the adaxial and abaxial epidermises. It is differentiated into the palisade parenchyma (composed of tall, compactly-placed cells) and the spongy parenchyma (comprising oval or round, loosely-arranged cells with inter cellular spaces). Mesophyll contains the chloroplasts which perform the function of photosynthesis.

    [3] Vascular system: The vascular bundles present in leaves are conjoint and closed. They are surrounded by thick layers of bundle-sheath cells.

    4Thank You

    ANSWER

    • Posted by Aman Rayeen 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 3 answers

    Pawni Chaudhary 6 years, 3 months ago

    Make correction : it is metaxylem not mataxylem

    1Thank You

    Pawni Chaudhary 6 years, 3 months ago

    First formed xylem elements are called protoxylem , while the later formed primary xylem is called metaxylem

    1Thank You

    Yogita Ingle 6 years, 3 months ago

    The first formed xylem elements are called protoxylem, while the later formed primary xylem is called metaxylem.

    • In stems, the protoxylem lies towards the centre (pith) and the metaxylem lies towards the periphery of the organ, this type of primary xylem is called endarch.
    • In roots, the protoxylem lies towards periphery and metaxylem lies towards the centre, such arrangement of primary xylem is called exarch.

    3Thank You

    ANSWER

    • Posted by Birjesh Kumar 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 2 answers

    Pawni Chaudhary 6 years, 3 months ago

    Taxnomical hierarchy refers putting up of the taxanomic categories in a logical sequence called taxonomic hierarchy

    0Thank You

    Raina Ahlawat 6 years, 3 months ago

    Putting up of the taxanomic categories in a logical sequence called taxonomic hierarchy

    1Thank You

    ANSWER

    • Posted by Nikita Chauhan 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Debashrita Dash 6 years, 3 months ago

    mitosis is equational division whereas meiosis is reductional division.

    0Thank You

    ANSWER

    • Posted by Nikita Chauhan 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 4 answers

    Pawni Chaudhary 6 years, 3 months ago

    S phase

    0Thank You

    Vishesh Motwani 6 years, 3 months ago

    S phase of interkinesis

    0Thank You

    Mohammad Amaan 6 years, 3 months ago

    DNA replication takes place in 'S' Phase (of interphase).

    1Thank You

    Gaurav Seth 6 years, 3 months ago

    Cell division is a very important process in all living organisms. During the division of a cell, DNA replication and cell growth also take place. All these processes, i.e., cell division, DNA replication, and cell growth, hence, have to take place in a coordinated way to ensure correct division and formation of progeny cells containing intact genomes.

    0Thank You

    ANSWER

    • Posted by Nikita Chauhan 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 2 answers

    Sia ? 6 years, 3 months ago

    Plasmolysis is when plant cells lose water after being placed in a solution that has a higher concentration of solutes than the cell does. This is known as a hypertonic solution. Water flows out of the cells and into the surrounding fluid due to osmosis.

    0Thank You

    Mohammad Amaan 6 years, 3 months ago

    When plant cell loses water through osmosis, the content of cell(including cell membrane )shrinks away from the cell wall , this process is known as plasmolysis. It is a reversible process.

    0Thank You

    ANSWER

    • Posted by Nikita Chauhan 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Meghna Thapar 5 years, 6 months ago

    Functions:

    1. Its functions include the storage, modification and packaging of products in vesicles.
    2. In some cases, complex sugars may be made from simple sugars in the Golgi apparatus.
    3. The Golgi apparatus is also involved in the formation of lysosomes, cell wall and plasma membrane.

    0Thank You

    ANSWER

    • Posted by Nikita Chauhan 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 2 answers

    Mohammad Amaan 6 years, 3 months ago

    GLYCOSYDIC BOND: It is the bond linking the monosaccharides(monomers) in polysaccharides(polymer). It is also formed by dehydration.

    0Thank You

    Mohammad Amaan 6 years, 3 months ago

    Peptide bond : This bond forms between the amino group of one amino acid and the carboxlic group of another amino acid with the removal of water.Hence it is formwd by dehydration.(H--N--H------------OH--C--O), Phosphodiester bond: A phosphate group is connected with the 5th carbon of one ribose sugar(in nucleotide) to the 3rd carbon of another ribose sugar(in anothe nucleotide) , the bond between phoshate group and the sugar is known as ester bond and there are two such ester bonds,So it is called Phosphodiester bond. It is also formed by dehydration.

    0Thank You

    ANSWER

    • Posted by Nikita Chauhan 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Sia ? 6 years, 3 months ago

    Plant reproductive system, any of the systems, sexual or asexual, by which plants reproduce. In plants, as in animals, the end result of reproduction is the continuation of a given species, and the ability to reproduce is, therefore, rather conservative, or given to only moderate change, during evolution.

    1Thank You

    ANSWER

    • Posted by Nikita Chauhan 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Unnati Pragya 6 years, 3 months ago

    Saturated fatty acid -Do not have double bond -high melting point that is why are solid room temperature 20 degree Celsius -All animal fats are example of fatty acid Unsaturated fatty acid -one or more double bond -low melting point that is hence are liquid in state oil -with the increase in the number of a bond the melting point decrease

    0Thank You

    ANSWER

    • Posted by Nikita Chauhan 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Sia ? 6 years, 3 months ago

    Anaphase of Mitosis Anaphase I of Meiosis
    1. The centromere of every chromosome divides. 1. The centromere do not divide.
    2. Separation of sister chromatids takes place. 2. Homologus chromosome are separated.
    3. Only one chromatids of every chromosome moves to the pole (now called daughter chromosome). 3. Each homologous pair of chromosomes moves to the pole with both the chromatids.
    4. The chromatids moving to one pole are genetically identical to those moving to the opposite pole (Before separation, these are sister chromatids held at a common centromere). 4. The chromosomes moving to one pole are not genetically indentical to those moving to the opposite pole.

    1Thank You

    ANSWER

    • Posted by Nikita Chauhan 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Meghna Thapar 5 years, 6 months ago

    The Golgi apparatus was first described by Camillo Golgi. Golgi apparatus consists of a set of membrane-bounded, fluid filled vesicles, vacuoles and flattened cisternae. Cisternae are usually stacked together (placed one above the other) in parallel rows. Golgi apparatus exists as an extensive network near the nucleus in the animal cells. However, the plant cells contain many freely distributed subunits of Golgi apparatus, called dictyosomes. The Golgi apparatus arises from the membrane of the smooth endoplasmic reticulum, which in turn, originates from the rough endoplasmic reticulum.

    0Thank You

    ANSWER

    • Posted by Harshit Rastogi 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 2 answers

    Pawni Chaudhary 6 years, 3 months ago

    U can take help of u tube

    1Thank You

    Mehak Gautam 6 years, 3 months ago

    Hey , you can find it in your ncert biology textbook with brief explanation hope it help

    2Thank You

    ANSWER

    • Posted by Nihal Jaiswal 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Harshit Rastogi 6 years, 3 months ago

    Chloroplasts are major organelles. They contain green pigments that make plants green. They are often called plastids, though plastids and chloroplasts are not exactly the same thing—a chloroplast is a special kind of plastid that photosynthesizes. Chloroplasts do lots of things, but their main function is photosynthesis. Plant cells, and some protists have chloroplasts, though animal and fungal cells lack them. Prokaryotes do not have chloroplasts (or any other organelles), though some can carry out photosynthesis, its cell acting like one big chloroplast. Chloroplasts are mainly green in colour since it absorbs red and blue light via their green pigment chlorophyll that is present in the thylakoid membranes.(Refer to wikibooks.org for more information) Chloroplasts are cellular generators. They take in carbon dioxide and water, and release sugar and oxygen. This process is called photosynthesis. Mitochondria then use the sugar and oxygen to carry out cellular respiration, producing energy. Mitochondria are essential parts of many eukaryotes, but they are useless without oxygen. Therefore, chloroplasts are extremely important. They produce breathable air for life. Root hairs are seen to not have chloroplasts as their job is to collect water and nutrients. They do NOT carry out photosynthesis. Like mitochondria, chloroplasts have their own DNA. Scientists also think chloroplasts are descended from a kind of bacteria, called cyanobacteria. Cyanobacteria are the photosynthetic bacteria we mentioned earlier. In early stages of Earth, cyanobacteria produced oxygen for their friends, the ærobic bacteria (ærobic means they use oxygen). Some of these ærobic bacteria later migrated into a eukaryotic cell, becoming mitochondria. The cyanobacteria followed, becoming chloroplasts. All eukaryotic cells contain mitochondria, but only plants and algæ contain chloroplasts, so scientists think mitochondria came first.

    0Thank You

    ANSWER

    • Posted by Mohd Danish 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    The Hammer 6 years, 3 months ago

    Red tide is a common name for algal blooms, which are large concentrations of aquatic microorganisms, such as protozoans and unicellular algae

    1Thank You

    ANSWER

    • Posted by Rakesh Verma 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Pawni Chaudhary 6 years, 3 months ago

    Each and every thing is important U cannot specify single thing as important

    0Thank You

    ANSWER

    • Posted by Makdirect Chennai 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Meghna Thapar 5 years, 4 months ago

    Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water. The energy from sunlight drives the reaction of carbon dioxide and water molecules to produce sugar and oxygen, as seen in the chemical equation for photosynthesis. Though the equation looks simple, it is carried out through many complex steps.

    0Thank You

    ANSWER

    • Posted by Prince Mandy 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 0 answers
    ANSWER

    • Posted by Sweta Kumari 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 2 answers

    Pawni Chaudhary 6 years, 3 months ago

    Herbarium is a store house of collected plant specimens that are dried pressed and preserved on sheets

    0Thank You

    Anshul Raina 6 years, 3 months ago

    It is usually a sheet in which plants are firstly pressed and then pasted on herbarium sheet. For instance it is collection of several plants which are pasted on sheet known as herbarium.

    4Thank You

    ANSWER

    • Posted by Makdirect Chennai 6 years, 3 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Yogita Ingle 6 years, 3 months ago

    A zwitterionic compound or zwitterion  is a chemical compound with a positive and a negative formal charge on different atoms and a total net charge of zero. In fact, a zwitterion is not an ion, because the compound as a whole is electronically neutral. Zwitterions are sometimes also called inner salts

    Amino acids as zwitterions

    Zwitterions in simple amino acid solutions

    An amino acid has both a basic amine group and an acidic carboxylic acid group.

    1Thank You

    ANSWER

    myCBSEguide App

    myCBSEguide

    Trusted by 1 Crore+ Students

    Install Now

    Test Generator

    Test Generator

    Create papers online. It's FREE.

    Try Now

    CUET Mock Tests

    CUET Mock Tests

    75,000+ questions to practice only on myCBSEguide app

    Install Now
    Google Play

    Download myCBSEguide App

    All Courses

    Other Websites

    CBSE Courses

    Resources

    Corporate

    NCERT Solutions

    CBSE Sample Papers

    All Content and Intellectual Property is under Copyright Protection | myCBSEguide.com ©2007-2025