BAF Shaheen College Dhaka
Practice Half-yearly Examination-2020 Class: IX (English Version)
Subject: Biology (MCQ)
Time: 25 minutes Total Marks: 25 [N.B- Answer all the questions. Each question carries 1 mark. Block fully with ball point pen, the circle of the letter that stands for the correct/best answer in the ‘’Answer Sheet” for Multiple Choice Questions examination.]
1.The stage before division when a nucleus prepares is called-
a.interphase b.prophase c.pro-metaphase d.metaphase 2.There are _____ gradually stages in mitosis.
a.two b.three c.five d.six
*On the following stem answer to the next two questions : Male and female X cell fuse to form a zygote cell.
3.Which one of the following is indicated as “X”?
a.primitive cell b.Diploid cell
c.Reproductive cell d.Gamete mother cell
4.If the number of chromosome in that zygote is 16(2n) than what will be the chromosome number in the cells each from where “X” cells are produced?
a.4 b.8 c.16 d.32 5. Which one is optimum temperature for photosynthesis?
a.22’C-35’C b.22’C-45’C c.22’C-50’C d.22’C-55’C 6.What is the percentage of CO2 in water?
a.0003% b.0-03% c.0-3% d.3-0%
7.In which plant,first stable component Oxalo Acetic acid is produced during photosynthesis?
a.Mango b.sugarcane c.Jackfruit d.blackberry 8.C6H12O6---→2C2H5OH+2CO2+energy
In which organism does this reaction happen?
a.Yeast b.Grass c.mango tree d.deer
*Observe the following reaction and answer to the question number 9 & 10:
light
L+Pi---→X Chlorophyll
9.Which one is called the high energetic compound?
a.L b.X c.pi d.Chlorophyl 10.In reaction-
i.occurs photophosphorylation
ii.Organic phosphate need for production of X iii.X is called energy coin
Which one is correct?
a.i b.ii c.ii & iii d.i,ii & iii 11.Where does the pseudo stratified epithelial tissue found?
a.kidney b.stomach c.brain d.trachea 12.What is called V shaped chromosome?
a.metacentric b.subcentric c.acrocentric d.telocentric 13.In which part of plant meiosis cell division occurs?
a.buds b.redical c.anther d.tip of root
Code : 138
14.Which one is micro nutrient?
a.Mg b.Ca c.Mn d.C 15.Congutation is the sexual reproduction process of which living kingdom?
a.monera b.protista c.plantae d.fungi 16.Whic one is scientific name of our national bird?
a.Panthera tigris b.Copsychus saularis c.Bufo melanostictus d.Apis indica
17.Which organelle is included in the cell of monera organism?
a.ribosome b.nucleus c.nuclear membrane d.mitochondria 18.Who is the father of taxonomy?
a.RH Whittaker b.Margulis c.Aristotle d.Carolus Linnaeus 19.Unicellular organisms-
a.Bacteria b.human c.tree d.snail 20.Characteristic of monera-
i.endoplasmic reticulum absent ii.chief nutrient mode is absorption iii.nuclear membrane absent which one is correctx
a.i & ii b.ii & iii c.i & iii d.i.ii & iii 21.which one below is discussed in physiology?
a.evolution of organism b.photosynthesis c.development of embryo d.arrangement of tissues 22.What is the name of the folding of a cell membrane?
a.Hilus b.micro villi c.Cristae d.matrix 23.Body of which one is made of mycelium
a.penicillium b.paramecium c.diatom d.bacteria 24.which one is the genus part of the scientific name of onion?
a .Apis b.Solarium c.Allium d.Oryza 25.Which is the branch of applied biology?
a.Histology b.Embryology c.Ecology d.Entomology
