Biology Class 10 ICSE

Walls of thylakoids

Sunlight

<p>Splitting of water molecules into hydrogen ions and oxygen in the presence of light and grana</p> Signup and view all the answers

<p>Thylakoids</p> Signup and view all the answers

<p>Stroma of chloroplast</p> Signup and view all the answers

<p>Converting ADP into ATP by adding one phosphate group using light energy</p> Signup and view all the answers

<p>Nicotinamide adenine dinucleotide phosphate</p> Signup and view all the answers

<p>Polymerisation</p> Signup and view all the answers

<p>Double sugar</p> Signup and view all the answers

<p>Extensive vein system</p> Signup and view all the answers

<p>Glucose, water, oxygen</p> Signup and view all the answers

<p>Converted into sucrose</p> Signup and view all the answers

<p>Oxygen used in respiration in the leaf cells</p> Signup and view all the answers

<p>Light intensity</p> Signup and view all the answers

<p>Protoplasm</p> Signup and view all the answers

<p>35°C</p> Signup and view all the answers

<p>To kill the cells</p> Signup and view all the answers

<p>Removal of chlorophyll</p> Signup and view all the answers

<p>Presence of starch will be indicated by a blue-black color</p> Signup and view all the answers

<p>Croton</p> Signup and view all the answers

<p>Hydrilla</p> Signup and view all the answers

<p>Potassium hydroxide</p> Signup and view all the answers

<p>From decaying organic matter in their environment</p> Signup and view all the answers

<p>6 CO2 + 12 H2O = C6H12O6 + 6 H2O + 6 O2</p> Signup and view all the answers

<p>Sudden change in the structure or number of chromosomes</p> Signup and view all the answers

<p>Out of a pair of contrasting characters present together, only one will express itself while the other remains suppressed.</p> Signup and view all the answers

<p>Two members of a pair of factors separate during the formation of gametes.</p> Signup and view all the answers

<p>The distribution of the alleles of one character into gametes is independent of the distribution of the alleles of the other character.</p> Signup and view all the answers

<p>3:1</p> Signup and view all the answers

<p>1:2:1</p> Signup and view all the answers

<p>9:3:3:1</p> Signup and view all the answers

<p>Appearance of a trait which is due to the presence of an allele exclusively on the X or Y chromosome.</p> Signup and view all the answers

<p>Alternative forms of a gene, occupying the same position on homologous chromosomes.</p> Signup and view all the answers

<p>The set of genes present in the cells of an organism.</p> Signup and view all the answers

<p>The observable characteristic which is genetically controlled.</p> Signup and view all the answers

<p>A diagram showing the ancestral history of a group of related individuals.</p> Signup and view all the answers

<p>The specific sequences of nucleotides on a chromosome that encode particular proteins.</p> Signup and view all the answers

<p>Inheritable feature.</p> Signup and view all the answers

<p>Alternative forms of a character.</p> Signup and view all the answers

<p>Small differences among individuals.</p> Signup and view all the answers

<p>Transmission of genetically based characteristics from parents to offspring.</p> Signup and view all the answers

<p>A pair of corresponding chromosomes of the same shape and size, one from each parent.</p> Signup and view all the answers

<p>Full complement of DNA.</p> Signup and view all the answers

<p>Having two similar alleles of the same gene at the corresponding sites on homologous chromosomes.</p> Signup and view all the answers

<p>It is a slow and continuous process whereby complex forms of life have emerged from simpler forms through millions of years.</p> Signup and view all the answers

<p>Inheritance of acquired characters.</p> Signup and view all the answers

<p>Theory of natural selection or Darwinism.</p> Signup and view all the answers

<p>All of these</p> Signup and view all the answers

<p>Overproduction, variation</p> Signup and view all the answers

<p>Origin of new species by gradual modification.</p> Signup and view all the answers

<p>Biston betularia.</p> Signup and view all the answers

<p>Charles Darwin.</p> Signup and view all the answers

<p>Carl Linnaeus.</p> Signup and view all the answers

<p>450-600 cm cube.</p> Signup and view all the answers

<p>680-735 cm cube.</p> Signup and view all the answers

<p>800-1125 cm cube.</p> Signup and view all the answers

<p>1450 cm cube.</p> Signup and view all the answers

<p>1600 cm cube.</p> Signup and view all the answers

<p>Auxins.</p> Signup and view all the answers

<p>IAA.</p> Signup and view all the answers

<p>The phenomenon of the suppression of growth of lateral buds by apical buds.</p> Signup and view all the answers

<p>Auxins can induce fruit formation without fertilization.</p> Signup and view all the answers

<p>Ga3 Gibberellic acid.</p> Signup and view all the answers

<p>Ethylene.</p> Signup and view all the answers

<p>Abscisic acid.</p> Signup and view all the answers

<p>July 11</p> Signup and view all the answers

<p>Tool making, scientific industrial revolution</p> Signup and view all the answers

<p>The rapid and massive rise in the world population that has occurred over the last few hundred years.</p> Signup and view all the answers

<p>All of these</p> Signup and view all the answers

<p>All of these</p> Signup and view all the answers

<p>All of these</p> Signup and view all the answers

<p>Any substance, resource, or organism used by humans for their welfare.</p> Signup and view all the answers

<p>Arithmetic</p> Signup and view all the answers

<p>Geometrical</p> Signup and view all the answers

<p>Development that meets the need of the present without compromising the ability of future generations.</p> Signup and view all the answers

<p>Statistical study of human population.</p> Signup and view all the answers

<p>It is the number of individuals per square kilometer at any given time.</p> Signup and view all the answers

<p>It is the number of live births per thousand people of population per year.</p> Signup and view all the answers

<p>It is the number of deaths per thousand of population per year.</p> Signup and view all the answers

<p>Difference between birth rate and death rate.</p> Signup and view all the answers

<p>Offices in hospitals offering help or advice about family planning.</p> Signup and view all the answers

<p>Intrauterine devices.</p> Signup and view all the answers

<p>Female surgical method.</p> Signup and view all the answers

<p>Male surgical method.</p> Signup and view all the answers

<p>Medical termination of pregnancy.</p> Signup and view all the answers

<p>Any unwanted or undesirable material resulting from various operations.</p> Signup and view all the answers

<p>Substances that can be broken down by microorganisms into harmless forms.</p> Signup and view all the answers

<p>Addition of constituents to air, water, or land that deteriorates environmental quality.</p> Signup and view all the answers

<p>Degradation of air quality affecting living organisms and objects.</p> Signup and view all the answers

<p>All of these</p> Signup and view all the answers

<p>All of these</p> Signup and view all the answers

<p>Smoke mixed with dust and small drops of fog.</p> Signup and view all the answers

<p>Any change in water quality making it unsuitable for use.</p> Signup and view all the answers

<p>Liquid waste from domestic activities.</p> Signup and view all the answers

<p>Accidental discharge of petroleum into oceans or estuaries.</p> Signup and view all the answers

<p>Overturned oil tankers, offshore oil mining, oil refineries.</p> Signup and view all the answers

<p>Places where wastes are dumped and covered with dirt every day.</p> Signup and view all the answers

<p>Dichloro diphenyl trichloroethane.</p> Signup and view all the answers

<p>Any unpleasant sound interfering with hearing and concentration.</p> Signup and view all the answers

<p>Interferes in communication, lowers work efficiency, disturbs sleep.</p> Signup and view all the answers

<p>Damage to vegetation, erosion of monuments, decay of building materials.</p> Signup and view all the answers

<p>September 16.</p> Signup and view all the answers

<p>Diseases like cholera, jaundice, typhoid.</p> Signup and view all the answers

<p>Pesticides may cause health problems.</p> Signup and view all the answers

<p>Eliminate open defecation and clean infrastructure.</p> Signup and view all the answers

<p>water</p> Signup and view all the answers

<p>Free movement of molecules from higher to lower concentration.</p> Signup and view all the answers

<p>Movement of water molecules from higher to lower concentration through a semi-permeable membrane.</p> Signup and view all the answers

<p>swell up</p> Signup and view all the answers

<p>shrink</p> Signup and view all the answers

<p>The minimum pressure required to prevent passage of pure solvent into the solution through a semipermeable membrane.</p> Signup and view all the answers

<p>The relative concentration of a solution that determines the direction and extent of diffusion.</p> Signup and view all the answers

<p>Passage of a substance from lower to higher concentration using energy.</p> Signup and view all the answers

<p>A state where a cell cannot accommodate more water, i.e., it is fully distended.</p> Signup and view all the answers

<p>Pressure of cell contents on the cell wall.</p> Signup and view all the answers

<p>Pressure of the cell wall on the cell contents.</p> Signup and view all the answers

<p>Contraction of cytoplasm from the cell wall caused by water withdrawal.</p> Signup and view all the answers

<p>Condition where cell content shrinks and the cell is no longer tight.</p> Signup and view all the answers

<p>Deplasmolysis.</p> Signup and view all the answers

<p>Pressure developed in the roots due to continued inward movement of water.</p> Signup and view all the answers

<p>Drops of water along the leaf margin due to excessive root pressure.</p> Signup and view all the answers

<p>Transpiration pull, capillarity, adhesion, cohesion.</p> Signup and view all the answers

<p>Molecular attraction by which particles of a body are united.</p> Signup and view all the answers

<p>Loss of water (cell sap) through a cut stem.</p> Signup and view all the answers

<p>Rapid drooping of the leaves of the sensitive plant Mimosa pudica.</p> Signup and view all the answers

<p>Loss of water in the form of water vapor from leaves.</p> Signup and view all the answers

<p>Blue when dry, pink when exposed to moisture.</p> Signup and view all the answers

<p>A device that measures the rate of water intake by a plant.</p> Signup and view all the answers

<p>Suction force created.</p> Signup and view all the answers

<p>Unequal transpiration from the two surfaces of a dorsiventral leaf.</p> Signup and view all the answers

<p>All of these</p> Signup and view all the answers

<p>Special openings in the bark of older plants for gas diffusion.</p> Signup and view all the answers

<p>Intensity of sunlight, temperature, velocity of wind, humidity, carbon dioxide, atmospheric pressure.</p> Signup and view all the answers

<p>Water content of the leaves.</p> Signup and view all the answers

<p>All of these</p> Signup and view all the answers

<p>Cooling effect, suction force, distribution of water and mineral salts.</p> Signup and view all the answers

<p>Hydathodes.</p> Signup and view all the answers

<p>The process by which living plant cells produce food from carbon dioxide, water, and light energy.</p> Signup and view all the answers

<p>True</p> Signup and view all the answers