9th Class Biology Second half Book Paper

Q1. Multiple choice questions (Attempt all · 60 × 0.5 = 30)

1. What is alcoholic fementation?
2. Unwinding of DNA strands happens during:
   1. Protein synthesis
   2. Translation
   3. Replication
   4. Transcription
3. A solution with less amount of solute is called:
   1. Hypotonic
   2. Isotonic
   3. Hypertonic
   4. Supertonic
4. Speciation is the evolutionary process by which:
   1. a new population is formed
   2. a new breed is formed
   3. a new specie is formed
   4. a new race is formed
5. Under unfavorable conditions, some bacteria can reproduce by:
   1. Spore formation
   2. Fragmentation
   3. Parthenogenesis
   4. Budding
6. The greatest fuel of energy of cellular respiration is:
   1. Glucose
   2. Proteins
   3. Amino acid
   4. Lipids
7. Pick the odd one.
   1. Glucose
   2. Sucrose
   3. Maltose
   4. Lactose
8. It is not an example of micronutrient.
   1. Boron
   2. Calcium
   3. Iron
   4. Copper
9. Natural selection operates to produce changes in:
   1. individuals
   2. populations
   3. races
   4. genes
10. Which of the following is incorrect about asexual reproduction?
    1. single parent contributes genetic material
    2. no gamete formation is involved
    3. off spring are genetically identical
    4. contributes in evolution of new species
11. Which of these uses oxygen as the final acceptor?
    1. glycolysis
    2. electron transport chain
    3. Krebs cycle
    4. photosynthesis
12. An example of dietary fiber is:
    1. Cellulose
    2. Whole grain
    3. Starch
    4. Vegetables
13. Define the term calyx and corolla.
14. What is an example of homologous structures in vertebrates?
    1. Forelimbs of humans and dogs
    2. Hindlimbs of humans and dogs
    3. Wings of birds and bats
    4. Fins of fish and whales
15. Which of the following part of the plant that's been changed and adapted for the job of reproduction:
    1. flower
    2. leave
    3. root
    4. meristematic tissue
16. Example of enzyme inhibitor is.
    1. Glucose
    2. Bacteria
    3. Cyanide
    4. All of these
17. The number of minor bio-elements are.
    1. 16
    2. 92
    3. 10
    4. 06
18. It is not a characteristic of tap root.
    1. A thick primary root
    2. Found in monocot plants
    3. Several secondary roots
    4. Have tertiary roots
19. Variations are:
    1. Always beneficial
    2. Can be beneficial
    3. Can be harmful
    4. Both B & C
20. A tiny outgrowth formed on yeast is:
    1. Swelling
    2. Outgrowth
    3. Spore
    4. Bud
21. The term metabolism is derived from the Greek word means:
    1. Split
    2. To change
    3. Division
    4. Break
22. It is not a part of DNA.
    1. Adenine
    2. Uracil
    3. Cytosine
    4. Guanine
23. Most of the uptake of water and minerals from soil takes place through:
    1. epidermal cells
    2. root cap
    3. root
    4. root hair
24. The type of selection that involves human intervention is:
    1. Natural selection
    2. Artificial selection
    3. Muman's selection
    4. Special creation
25. The male reproductive part of flower is:
    1. Stigma
    2. Stamen
    3. Ovary
    4. Carpel
26. Light reactions take place on:
    1. Thylakoid membranes
    2. Stroma of chloroplasts
    3. Mitochondria
    4. All of these
27. Which is not a part of the general structure of an amino acid?
    1. Carboxyl group
    2. Amino group
    3. Oxygen atom
    4. Hydrogen atom
28. The waste product of respiration in plants is:
    1. Salts
    2. Calcium oxalate
    3. Oxygen
    4. Carbon dioxide
29. The inactive structures of an organism that have lost function over time:
    1. Homologous structures
    2. Waste parts
    3. Vestigial organ
    4. Both A & C
30. Which of the following is the benefit of sexual reproduction?
    1. this is rapid way of reproduction
    2. this is complex mechanism of reproduction
    3. it can occur any time in lifecycle
    4. it contributes genetic variability in successive generations
31. What is anaerobic respiration?
32. Each amino acid has a central carbon called as:
    1. Beta carbon
    2. Alpha carbon
    3. Theta carbon
    4. Central carbon
33. What would happen to a plant cell placed in a hypotonic environment:
    1. Becomes turgid
    2. Becomes flaccid
    3. No effect
    4. Be dead
34. Evolution is the alteration in the:
    1. Structures
    2. Traits
    3. Functions
    4. Behaviors
35. Which of the following is compact, thickened, vertically growing, underground stem enveloped by thick, succulent (flashy) leaves, serving as reservoir of stored nutrients:
    1. Bulb
    2. Corm
    3. Rhizome
    4. Stem tuber
36. The optimum temperature for the maximum working speed of human enzymes is:
    1. 36-37°C
    2. 36-38°C
    3. 37-39°C
    4. 50°C
37. What are bio-elements? Write their types.
38. The process of taking in of nutrients by the organism is called:
    1. Assimilation
    2. Nutrient
    3. Nutrition
    4. Metabolism
39. Theory of natural selection is not based on:
    1. Competition
    2. Overproduction
    3. Variation
    4. Availability of food
40. The first cell or tiny piece of the parent plant used in tissue culture is called:
    1. baby plant
    2. plantlet
    3. seedling
    4. explants
41. Which of the following is not true about enzymes?
    1. They act as biocatalysts
    2. Enzymes speed up biochemical reactions
    3. They lower the activation energy
    4. They increase the activation energy
42. The word "Saccharon" means:
    1. Sweet
    2. Saccharides
    3. Sugar
    4. Carbohydrates
43. What drives the translocation of organic solutes in plants?
    1. Differences in sugar concentration
    2. Differences in leaf size
    3. Differences in root structure
    4. Differences in stem length
44. Farmers have bred Neli-Ravi buffalo to produce more milk than older breeds. Which process was used to produce these cattle?
    1. adaptation
    2. natural selection
    3. genetic engineering
    4. selective breeding
45. Sporophyte generation in plant life cycle:
    1. Haploid
    2. Diploid
    3. Triploid
    4. Tetraploid
46. What no-competitive inhibitors do to the enyme?
47. The function of tRNA is to.
    1. Carry message from DNA
    2. Synthesize proteins
    3. Makes rRNA
    4. Transfers amino acids to ribosomes
48. Define pollination and its types.
49. Researchers have explained the evolution of horses by studying:
    1. Anatomy
    2. Fossils
    3. Breeding patterns
    4. Body structure
50. The third whorl of flower is called:
    1. Calyx
    2. Androecium
    3. Gynoecium
    4. Corolla
51. Describe the mechanism of adaptations of plants for excretion.
52. Pick the odd one.
    1. Ghee
    2. Cheese
    3. Soybean oil
    4. Butter
53. What are homologous structure?
54. Darwin had a 5 years voyage on the ship:
    1. HMS Eagle
    2. HMS Clio
    3. HMS Beagle
    4. HMS Tyne
55. Gametophyte generation in plant life cycle:
    1. Haploid
    2. Diploid
    3. Triploid
    4. Tetraploid
56. Define nutrients. Give its types.
57. These are the simplest form of carbohydrates:
    1. Monosaccharides
    2. Disaccharides
    3. Polysaccharides
    4. Both A and B
58. Differentiate between insect and wind pollinated flowers.
59. Evidences of evolution cannot be found from:
    1. Palaeontology
    2. Body colour
    3. Selective breeding
    4. Comparative anatomy
60. Which of the following parts of the flower are called accessary whorls?
    1. #VALUE!
    2. #VALUE!
    3. #VALUE!
    4. #VALUE!