9th Class Biology Full Book Paper

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

1. What is alcoholic fementation?
2. Muscle cells are:
   1. Elongated
   2. Enucleated
   3. Shortened
   4. Round
3. Hydrogen is an example of.
   1. Molecule
   2. Organelle
   3. Atom
   4. Tissue
4. Unwinding of DNA strands happens during:
   1. Protein synthesis
   2. Translation
   3. Replication
   4. Transcription
5. Define Species.
6. Under unfavorable conditions, some bacteria can reproduce by:
   1. Spore formation
   2. Fragmentation
   3. Parthenogenesis
   4. Budding
7. 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
8. Homo sapiens belongs to class:
   1. Hominidae
   2. Mammalia
   3. Chordata
   4. Magnoliopsida
9. Define / Describe / Explain briefly selective breeding.
10. A solution with less amount of solute is called:
    1. Hypotonic
    2. Isotonic
    3. Hypertonic
    4. Supertonic
11. The greatest fuel of energy of cellular respiration is:
    1. Glucose
    2. Proteins
    3. Amino acid
    4. Lipids
12. Mitochondria acts as:
    1. Protein synthesizer
    2. Recyclers
    3. Powerhouse
    4. Control center
13. Which is not related with cooling down the body temperature?
    1. Increasing blood flow to the skin
    2. Increase in sweating
    3. More breathing rate
    4. Vasodilation
14. Pick the odd one.
    1. Glucose
    2. Sucrose
    3. Maltose
    4. Lactose
15. Give the significance of muscles in the life of animals.
16. 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
17. Natural selection operates to produce changes in:
    1. individuals
    2. populations
    3. races
    4. genes
18. Scientific name of humans is:
    1. Homo sapiens
    2. Homo Sapiens
    3. Homo sapiens
    4. Homo sapien
19. Define / Describe / Explain briefly vestigial organs.
20. It is not an example of micronutrient.
    1. Boron
    2. Calcium
    3. Iron
    4. Copper
21. Which of these uses oxygen as the final acceptor?
    1. glycolysis
    2. electron transport chain
    3. Krebs cycle
    4. photosynthesis
22. A group of cells performing same function is called:
    1. Specialized Cell
    2. Organelle
    3. Organ
    4. Tissue
23. Heat production in the body can be increased by.
    1. Intestine
    2. Muscles
    3. Skin
    4. Neurons
24. An example of dietary fiber is:
    1. Cellulose
    2. Whole grain
    3. Starch
    4. Vegetables
25. What is energy of activation? Explain with reference to enzyme.
26. 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
27. 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
28. Discuss briefly the observations Darwin made during his voyage on HMS beagle.
29. Explain the procedure of plant tissue culture and illustrate your answer with suitable diagram.
30. Define the term calyx and corolla.
31. Example of enzyme inhibitor is.
    1. Glucose
    2. Bacteria
    3. Cyanide
    4. All of these
32. Write the differences between self and cross pollination.
33. Which is not relevant to root system?
    1. Anchorage of plant
    2. Food synthesis
    3. Food storage
    4. Mineral absorption
34. The number of minor bio-elements are.
    1. 16
    2. 92
    3. 10
    4. 06
35. Dengue is caused by:
    1. Plasmodium
    2. Virus
    3. Mosquito
    4. E. coli
36. A tiny outgrowth formed on yeast is:
    1. Swelling
    2. Outgrowth
    3. Spore
    4. Bud
37. Variations are:
    1. Always beneficial
    2. Can be beneficial
    3. Can be harmful
    4. Both B & C
38. Describe speciation.
39. Interphase is divided into how many phases?
    1. Four
    2. Three
    3. Two
    4. One
40. 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
41. The term metabolism is derived from the Greek word means:
    1. Split
    2. To change
    3. Division
    4. Break
42. What are organs? How they are formed?
43. The table shows three functions of cells which row is correct?
    1. #VALUE!
    2. #VALUE!
    3. #VALUE!
    4. #VALUE!
44. It is not a part of DNA.
    1. Adenine
    2. Uracil
    3. Cytosine
    4. Guanine
45. The study of the functions of different parts of living organisms is called:
    1. Morphology
    2. Anatomy
    3. Histology
    4. Physiology
46. The male reproductive part of flower is:
    1. Stigma
    2. Stamen
    3. Ovary
    4. Carpel
47. The type of selection that involves human intervention is:
    1. Natural selection
    2. Artificial selection
    3. Muman's selection
    4. Special creation
48. Name the products of anaerobic respiration in muscle cells.
49. Those cells which give rise to gametes are called:
    1. Somatic cells
    2. Spindle Fibers
    3. Germ line cells
    4. Neurons
50. Most of the uptake of water and minerals from soil takes place through:
    1. epidermal cells
    2. root cap
    3. root
    4. root hair
51. Light reactions take place on:
    1. Thylakoid membranes
    2. Stroma of chloroplasts
    3. Mitochondria
    4. All of these
52. The site of enzyme synthesis in cells is.
    1. lysosome
    2. smooth endoplasmic retriculum
    3. Golgi bodies
    4. ribosome
53. Cardiovascular system is made up of heart and.
    1. Blood cells
    2. Blood vessels
    3. Water
    4. All of these
54. 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
55. Both skin cells and cancerous cells divide rapidly. Why cancerous cells are harmful but skin cells are not?
56. 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
57. 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
58. An order is a group of related:
    1. Families
    2. Species
    3. Kingdoms
    4. Genera
59. Describe and sketch light reactions of photosynthesis.
60. The waste product of respiration in plants is:
    1. Salts
    2. Calcium oxalate
    3. Oxygen
    4. Carbon dioxide