Description : $ The oldest microfossils of organisms resemble the modern day cyanobacteria. ! Cyanobacteria have oxygenic photosynthesis.
Last Answer : $ The oldest microfossils of organisms resemble the modern day cyanobacteria. ! Cyanobacteria have oxygenic ... . If both As and R are wrong.
Description : $ Photosynthesis roots are a type of Tap Root System. ! Anoxygenic photosynthesi is performed by photosynthetic roots.
Last Answer : $ Photosynthesis roots are a type of Tap Root System. ! Anoxygenic photosynthesi is performed by photosynthetic ... D. If both As and R are wrong.
Description : Non-cyclic photophosphorylation is also known as a. Oxygenic photosynthesis b. Photosynthesis c. Anoxygenic photosynthesis d. Photophosphorylation
Last Answer : Ans: B
Description : Genetic and biochemical similarities between contemporary cyanobacteria and eukaryoticchloroplasts are accepted to mean that A- .eukaryotes evolved from bacteria B- eukaryotes evolved from archaea C- . ... evolved in eukaryotes D- .cyanobacteria arose from chloroplasts which escaped from plant cells
Last Answer : eukaryotes evolved from archaea
Description : Some hyperthermophilic organisms that grow in highly acidic (pH 2) habitats belong to the two groups (a) eubacteria and archaea (b) cyanobacteria and diatoms (c) protists and mosses (d) liverworts and yeasts.
Last Answer : (a) eubacteria and archaea
Description : $ Nostoc has chloropyll "a" and phycocyanin pigments. ! Chlorophyll "a" helps in oxygenic photosynthesis.
Last Answer : $ Nostoc has chloropyll "a" and phycocyanin pigments. ! Chlorophyll "a" helps in oxygenic photosynthesis. A. ... wrong D. If both As and R are wrong.
Description : The first photosynthetic oxygen liberating organisms to appear on earth were (1) Cyanobacteria (2) Bryophytes (3) Green algae (4) Bacteria
Last Answer : (1) Cyanobacteria Explanation: Cyanobacteria or blue green algae were the photosynthetic organisms that lived in the ancient ocean. It liberated the oxygen found in the iron oxide.
Description : What is true for cyanobacteria? (a) Oxygenic with nitrogenase (b) Oxygenic without nitrogenase (c) Non oxygenic with nitrogenase (d) Non oxygenic without nitrogenase
Last Answer : (a) Oxygenic with nitrogenase
Description : $ Phagotrophs take solid nutrition. ! Photosynthetic organisms are called Producers.
Last Answer : $ Phagotrophs take solid nutrition. ! Photosynthetic organisms are called Producers. A. If both As and R are ... wrong D. If both As and R are wrong.
Description : Blue-green algae are included in the group – (1) Eubacteria (2) Cyanobacteria (3) Protozoa. (4) Fungi
Last Answer : (2) Cyanobacteria Explanation: Cyanobacteria, also known as blue algae, are single celled and belong to the family of Prokaryotes. That means, they do not have a cell nucleus. The ... life forms on Earth by stimulating biodiversity and leading to the nearextinction of oxygen-intolerant organisms.
Description : Which one of the following statements is wrong? (a) Eubacteria are also called false bacteria. (b) Phycomycetes are also called algal fungi. (c) Cyanobacteria are also called blue-green algae. (d) Golden algae are also called desmids.
Last Answer : (a) Eubacteria are also called false bacteria.
Description : Which of the following are found in extreme saline conditions? (a) Eubacteria (b) Cyanobacteria (c) Mycobacteria (d) Archaebacteria
Last Answer : (d) Archaebacteria
Description : Which of the following are found in extreme saline conditions ? (1) Eubacteria (2) Cyanobacteria (3) Mycobacteria (4) Archaebacteria
Last Answer : (4) Archaebacteria
Description : Blue-green algae are included in the group (1) Eubacteria (2) Cyanobacteria (3) Protozoa (4) Fungi
Last Answer : Cyanobacteria
Description : Anoxygenic photosynthesis is characteristic of
Last Answer : Anoxygenic photosynthesis is characteristic of A. Rhodospirillum B. Spirogyra C. Chlamydomonas D. Ulva
Description : Anoxygenic photosynthesis is characteristic of (a) Rhodospirillum (b) Spirogyra (c) Chlamydomonas (d) Ulva.
Last Answer : (a) Rhodospirillum
Description : Oxygenic photosynthesis occurs in
Last Answer : Oxygenic photosynthesis occurs in A. Chlorobium B. Chromatium C. Oscillatoria D. Rhodospirillum
Description : Oxygenic photosynthesis occurs in (a) Oscillatoria (b) Rhodospirillum (c) Chlorobium (d) Chromatium.
Last Answer : (a) Oscillatoria
Description : $ Progenote is considered to be the more ancient form of life which gave rise to archaeobacteria and eubacteria. ! Monomers are always multicellular.
Last Answer : $ Progenote is considered to be the more ancient form of life which gave rise to archaeobacteria and eubacteria ... D. If both As and R are wrong.
Description : $ Process of separation of photosynthetic pigments is called chromatography ! Chromatophore have accessory photosynthetic pigments such as phycocyanin
Last Answer : $ Process of separation of photosynthetic pigments is called chromatography ! Chromatophore have accessory ... If both As and R are wrong.
Description : Select the correct statement: (1) C4 pathway for. CO2 fixation were discovered by Hatch and Slack (2) CO2 is essential for photosynthesis (3) Addition of sodium carbonate in water retards photosynthetic rate in vallisneria (4) Phloem is the principal pathway for translocation of solutes
Last Answer : Ans. ((c))
Description : A key energy compound in bacterial photosynthesis by cyanobacteria is ______ and a major end-product is ______. a. GTP; protein b. citrate; lactose c. glucose; chlorophyll d. ATP; glucose
Last Answer : c. glucose; chlorophyll
Description : Which of the following does not produce oxygen as a product of photosynthesis? A- A.Oak trees B.Purple sulfur bacteria C.Cyanobacteria D.Phytoplankton
Last Answer : Purple sulfur bacteria
Description : Which one of the following living organisms completely lacks a cell wall? (a) Cyanobacteria (b) Sea-fan (Gorgonia) (c) Saccharomyces (d) Blue-green algae
Last Answer : (b) Sea-fan (Gorgonia)
Description : Which of the following organisms are known as chief producers in the oceans? (a) Dinoflagellates (b) Diatoms (c) Cyanobacteria (d) Euglenoids
Last Answer : (b) Diatoms
Description : Match the organisms in column-I with habitats in column-II. Column-I Column-II A. Halophiles (i) Hot springs B. Thermoacidophiles (ii) Aquatic environment C. Methanogens (iii)Guts of ruminants D. Cyanobacteria (iv) Salty area Select the correct ... , C-(ii), D-(i) (d) A-(ii), B-(iv), C-(iii), D-(i)
Last Answer : (a) A-(iv), B-(i), C-(iii), D-(ii)
Description : Which of the following organisms are known as chief producers in the oceans ? (1) Dinoflagellates (2) Diatoms (3) Cyanobacteria (4) Euglenoids
Last Answer : 2) Diatoms
Description : Dark reactions of photosynthesis occur in (a) granal thylakoid membranes (b) stromal lamella membranes (c) stroma outside photosynthetic lamellae (d) periplastidial space.
Last Answer : c) stroma outside photosynthetic lamellae
Description : How do photosynthetic plants typicallt affect the other organisms in their ecosystem?
Last Answer : What is the answer ?
Description : Which one of the following statements about fungi is NOT true? a. Some fungi are dimorphic. b. Fungi have cell walls made of chitin. c. Fungi are photosynthetic organisms. d. Fungi consist of the yeasts and molds.
Last Answer : c. Fungi are photosynthetic organisms
Description : The oxygen in the earth's atmosphere was probably produced by which of the following? w) volcanos x) photosynthetic organisms y) radioactive minerals z) meteors
Last Answer : ANSWER: X -- PHOTOSYNTHETIC ORGANISMS
Description : $ Life on earth originated by interaction of the various chemical substances in the broth of the sea. ! The first organisms were, pherhaps the chemoau
Last Answer : $ Life on earth originated by interaction of the various chemical substances in the broth of the sea. ! The ... wrong D. If both As and R are wrong.
Description : $ The first step towards photosynthesis is reduction of `CO_2`. ! ATP is released by the reduction of `CO_2`.
Last Answer : $ The first step towards photosynthesis is reduction of `CO_2`. ! ATP is released by the reduction of `CO_2 ... wrong D. If both As and R are wrong.
Description : $ When the total number of chromosomes is not the exact multiple of the haploid number of an organisms, the phenomenon is called euploidy. ! Euploidy
Last Answer : $ When the total number of chromosomes is not the exact multiple of the haploid number of an organisms, the ... wrong D. If both As and R are wrong.
Description : $ Anarobic respiration occurs in the aquatic organisms. ! Aquatic organisms are never autotrophic.
Last Answer : $ Anarobic respiration occurs in the aquatic organisms. ! Aquatic organisms are never autotrophic. A. If both ... D. If both As and R are wrong.
Description : $ Morphology deals with the study of external characters of the organisms ! Physiology deals with the study the various functions of a living organism
Last Answer : $ Morphology deals with the study of external characters of the organisms ! Physiology deals with the study the ... D. If both As and R are wrong.
Description : $ Nitrogen fixing bateria always live in symbiosis. ! Symbiosis occurs between the organisms of the same species.
Last Answer : $ Nitrogen fixing bateria always live in symbiosis. ! Symbiosis occurs between the organisms of the same species. ... D. If both As and R are wrong.
Description : $ Exo-biology is a branch of biology. ! It deals with the study of external characters of the living organisms.
Last Answer : $ Exo-biology is a branch of biology. ! It deals with the study of external characters of the living ... is wrong D. If both As and R are wrong.
Description : $ The process of synthesis of complex organic molecules from simpler ones, by the living organisms is called Anabolisms. ! Anabolism is always useful
Last Answer : $ The process of synthesis of complex organic molecules from simpler ones, by the living organisms is called ... wrong D. If both As and R are wrong.
Description : $ Kingdom Monera includes the unicellular prokaryotic organisms. ! Eukaryotes are the organisms which have a eukaryotic nucleus and double membraned o
Last Answer : $ Kingdom Monera includes the unicellular prokaryotic organisms. ! Eukaryotes are the organisms which have a ... D. If both As and R are wrong.
Description : $ The zyhote developes into a multicellular organisms. ! Each cell is totipotent.
Last Answer : $ The zyhote developes into a multicellular organisms. ! Each cell is totipotent. A. If both As and R are ... is wrong D. If both As and R are wrong.
Description : $ Unicellular eukaryotes are the simplest organisms. ! Prokaryotes have the mitochondria whereas eukaryotes are without mitochondria.
Last Answer : $ Unicellular eukaryotes are the simplest organisms. ! Prokaryotes have the mitochondria whereas eukaryotes are ... . If both As and R are wrong.
Description : $ Euglena is an organisms with a controversial position in classification of living organisms. ! Euglena has parasitic nutrition.
Last Answer : $ Euglena is an organisms with a controversial position in classification of living organisms. ! Euglena has ... D. If both As and R are wrong.
Description : $ Classification based on the evolutionary relationships among the organisms is called phylogenetic classification. ! According to Binomila Nomenclatu
Last Answer : $ Classification based on the evolutionary relationships among the organisms is called phylogenetic classification. ! ... If both As and R are wrong.
Description : $ Ecologically, animals are consumers. ! Living organisms are classified as follows : (i) Producers (ii) Consumers (iii) Decomposers
Last Answer : $ Ecologically, animals are consumers. ! Living organisms are classified as follows : (i) Producers (ii) ... wrong D. If both As and R are wrong.
Description : $ Viruses are at a border line position between living and non living. ! Phytoplanktons are those living organisms which are aquatic.
Last Answer : $ Viruses are at a border line position between living and non living. ! Phytoplanktons are those living ... wrong D. If both As and R are wrong.
Description : $ Amitosis occurs with spindle formation. ! Amitosis occurs during the formation of gametes in diploid organisms.
Last Answer : $ Amitosis occurs with spindle formation. ! Amitosis occurs during the formation of gametes in diploid organisms. ... D. If both As and R are wrong.
Description : $ Louis Pasteur discovered that fermentation is brought about by micro-organisms ! Parasitic becteria bring about fermentation.
Last Answer : $ Louis Pasteur discovered that fermentation is brought about by micro-organisms ! Parasitic becteria bring about ... D. If both As and R are wrong.
Description : $ Nucleus was discovered by Robert Brown ! Large sized organisms have large sized cells.
Last Answer : $ Nucleus was discovered by Robert Brown ! Large sized organisms have large sized cells. A. If both As and ... is wrong D. If both As and R are wrong.
Description : $ living organisms can exist alone ! A population is a group of organisms of entirely different species occupying a particular area.
Last Answer : $ living organisms can exist alone ! A population is a group of organisms of entirely different species occupying ... D. If both As and R are wrong.