DIVERSITY OF LIFE

1. Scientific names are used by biologists to refer to organisms because
A. they give accurate descriptions of organisms
B. their Latin names are easier to remember
C. they are the same in all languages
D. they give honor to the person who discovered them.

2. Which of the following shows the correct hierarchy of classification in the living world?
A. Kingdom, phylum, order class, family, genus, species
B. kingdom, phylum, class, family, order, genus, species
C. kingdom, order, phylum, class, family, genus, species
D. kingdom, phylum, class, order, family, genus, species

3. Clues scientists use to classify organisms include
A. common names C. structural similarities
B. identification keys D. scientific names

4. The following are capable of making their food except
A. orchid C. mushroom
B. moss D. Hydrilla

5. The following are examples of protests except
A. Euglena C. Anabaena
B. Amoeba D. Paramecium

6. Euglena move by means of
A. flagella C. contractile vacuoles
B. pseudopodia D. cilia

7. All of the following protests have locomotory organs except
A. flagellates C. ciliates
B. sporozoans D. sarcodines

8. The fungus kingdom includes
A. viruses C. liverworts
B. moses D. mushrooms

9. Which of the following are nonvascular plants?
A. ferns C. gymnosperms
B. angiosperms D. mosses

10. What structures are lacking in nonvascular plants?
A. true roots and stems C. phloem
B. xylem D. xylem and phloem

11. Monocots differ from dicots because
A. their leaves have netted or reticule veins
B. their xylem and phloem vessels are radially arranged
C. they reproduce by seeds hidden in protective structures
D. their floral parts are in multiples of three

12. Which of the following is a pore bearing animal?
A. bath sponge C. jellyfish
B. hydra D. liver fluke


13. Which of the following characteristics are present in all arthropods?
A. exoskeleton C. wings
B. jointed legs D. jointed legs and exoskeleton

14. Which is true about mammals?
A. they have scales
B. they have an amniotic egg
C. they nurse their young with milk
D. they cannot fly



15. Which grouping of animals is NOT correct?
A. chicken, maya, penguin, kingfisher
B. starfish, sand dollar, brittlestar, sea urchin
C. pawikan, lizard, snake, crocodile
D. dragonfly, spider, butterfly, cockroach

16. Which of the following are reptiles
A. crocodiles and salamanders
B. crocodiles, turtles, and lizards
C. turtles and toads
D. lizards and salamanders

For nos 17 – 25, choose the word that does not belong to the group

17. A. grasshopper C. spider
B. dragonfly D. sea grasses

18. A. Caulerpa C. cycads
B. tree ferns D. seagrasses

19. A. starfish C. jellyfish
B. sea cucumber D. milkfish

20. A. ostrich C. bat
B. eagle D. pigeon

21. A. snake C. salamander
B. monitor lizard D. pawikan

22. A. santan C. Bandera española
B. gumamela D. rosal

23. A. mosses C. diatoms
B. liverworts D. hornworts

24. A. shark C. catfish
B. milkfish D. tuna

25. A. frog C. newt
B. toad D. lizard

For nos 26 – 29, choose the letter of the best answer to complete the pair.

26. Penicillium : _______ ; Fern : Plant
A. animal C. ciliates
B. protest D. fungi

27. Fishes : scales ; _________ : hair
A. reptiles C. amphibians
B. mammals D. birds

28. grass : monocot ; __________ : dicot
A. orchid C. mango
B. gabi D. cocnut

29. Amoeba : eukaryote ; _________ : procaryote
A. blue green algae C. hornwort
B. Plasmodium D. Volvox

30. Energy enters the living world through
A. producers C. omnivores
B. herbivores D. carnivores

31. The light reaction phase of photosynthesis occurs in the
A. stroma C. cristae
B. grana D. chlorophyll

32. The dark reaction phase of photosynthesis occurs in the
A. stroma C. cristae
B. grana D. chlorophyll
33. The end products of photosynthesis are:
A. life energy and O2 C. glucose and O2
B. CO2 and life energy D. water and CO2

34. Which of the following shows the energy changes in photosynthesis?
A. chemical ® light ® chemical
B. chemical ® energy of moving electrons ® light
C. light ® chemical ® energy of moving electrons
D. light ® energy of moving electrons ® chemical

35. The stomata serve as channels for the passageway of
A. O­2 only C. Co2 entry ; O2 exit
B. CO2 only D. O2 entry ; CO2 exit

36. Which of the following are the primary products produced during electron transport in the light reaction phase of photosynthesis?
1. NADPH 2. ATP C. water
A. 1 and 2 only C. 1 and 3 only
B. 2 and 3 only D. 1,2, and 3 only

37. Photosynthesis supplies the biosphere with several essential materials. Which of the following is not among them?
A. oxygen gas from water
B. chemical energy from light energy
C. carbon dioxide from organic carbon and oxygen from air
D. glucose from inorganic matter

38. Mitochondria has two membranes, the outer and an inner membrane. The inner membrane of mitochondria folds to make a series of shelves called
A. cristae C. thyllakoid
B. grana D. stroma

39. Which of the following statements does not describe the Cell theory
A. cells are the units of structure and function
B. new cells come from the division of pre existing cells
C. most living things are made up of cells
D. cells are building blocks of life

40. A cell places in salt solution shrinks in size if the concentration of salt particles inside the cell is
A. greater than the concentration of sale particles outside the cell
B. the same as the concentration of salt particles outside the cell
C. less than the concentration of salt particles outside the cell
D. none of the above

41. Proteins have structural functions in an organism. What is the function of keratin?
A. promotes breakdown or digestion of fats
B. connects cell membrane and nuclear membrane
C. makes up the structure of hair, nails, and wool for protection
D. gives energy

42. What is the outermost part of a plant cell?
A. cell membrane C. vacuole
B. cell wall D. stoma

43. If the eyepiece of a compound microscope has a magnification of 10x and the objective is 40x, the microscopic field would have been enlarged by
A. 4x B. 40x C. 50x D. 400x

44. In a compound microscope, which of he following parts magnify the specimen being observed?
A. revolving nosepiece, low power objective (LPO), high power objective (HPO)
B. mirror, diaphragm, eyepiece
C. coarse adjustment, fine adjustment, objectives
D. LPO, HPO, and eyepiece

45. Which of the following suggests that the nucleus influences cell activities?
A. a cell whose nucleus has been removed takes in food
B. cell whose cytoplasm has been removed stops making proteins
C. an intact one-celled organism moves in water
D. a cell whose nucleus has been removed stops growing.

46. Which of the following is absent in a prokaryotic cell?
A. cell wall C. nuclear membrane
B> nucleus D. cell membrane

47. Which of the following is not true about Ribonucleic acid (RNA)
A. It is single stranded
B. It has a 5-Carbon sugar ribose
C. Its bases are adenine, guanine, thymine and cystosine
D. It is needed for protein synthesis

48. Essential amino acids can be obtained from
A. plant sources C. both plant and animal sources
B. animal sources D. neither plant nor animal sources

49. Which of the following is a most unlikely function of protein in the body?
A. It repairs damaged cells and tissues
B. It serves as a structural component for hair and nails
C. It gives energy to the body
D. It helps in blood clotting

50. The external structures that distinguish a stem from a root are the
A. vascular tisssues C. lenticels
B. nodes D. epidermis

51. Which of the ff. is a stem specialized for reproduction?
A. Stolon C. corn
B. bulb D. tuber

52. The top of pechay plant that was made to stand in red ink became red after a few minutes. Through which part of the stem did the ink rise?
A. phloem C. epidermis
B. xylem D. pericycle

53. it is the part of the stem where leaves are attached
A. node C. internode
B. lenticel D. bundle scar

54. Which is not a function of the stem
A. support C. storage
B. absorption D. conduction

55. Which leaf layer allows exchange within the plant leaf?
A. palisade layer C. epidermal layer
B. spongy layer D. endodermal layer