Grade 10- Science Unit-8 Characteristics of organisms › ... › 2020 › 04 ›...

St. Joseph’s Balika M.V

Grade 10- Science

Unit-8 Characteristics of organisms

Refer the unit 8 in the text book and answer the questions

1. List out the characteristics that can be used to identify living from non-living

2. According to the cellular organization, organisms can be classified as

Uni cellular organisms

Multicellular organisms

The structure of a unicellular organism is made up of the cytoplasm and organelles enclosed

by a plasma membrane.

i. Identify the following uni cellular organisms

A B C D

The given below diagram shows the development of embryo of human

ii. Name the A and B cells

iii. Which type of cell division occurs in embryo?

3. The bodies of the multicellular organisms are composed of different types of cells.

a. Given below diagram shows different cells in a plant body. Label them

D

A

B

A

B C

Cellular organization


b. Name the different type of cells in human body in the following diagram

A B C D

E F

4. Refer page no. 143 and define the following terms.

Cell

Tissue

System

Organism

Complete the following organizational arrangements.

5. The process by which the energy and the materials are obtained for the maintenance of

life is known as nutrition

a. Refer page no. 150 and complete the following chart.

Organisms

Cell ……………….

.

Organs ………….. ………….

Nutrition

……………………

The Organisms that

produce their own food

or the nutrients by

themselves

………………………

The Organisms that

cannot produce their

own food or the

nutrients by themselves

………………………

Light energy is used to

produce the food

Ex:……………………

…

………………………

Chemical energy is used

to produce the food

Ex:……………………

…


b. Write the word equation for the process of photosynthesis

c. Write the balanced chemical equation of photosynthesis

6. The process by which the stored food is transformed into energy inside the cells is

known as cellular respiration.

Study the activity in page no 145 and answer the questions

i. What are the functions performed by A and D vessels?

ii. Name a suitable substance instead of frog

iii. After sometime, state the changes that could be observed in B and D bottles

iv. State the change that should be done to the above set up to arrange a control set up

relevant to the above set up. Draw it.

Respiration



i. What is the function of KOH in apparatus A?

ii. What is the reason of using coloured water?

iii. What are the expected observations?

iv. What is the conclusion based on the observation

7. Refer page no. 147 and define the following terms

Stimulus

Sensory organs

Responses

Irritability

Coordination

8. Removal of the waste products from the body that are produced during metabolism is

known as excretion.

i. Refer page no. 148 and complete the table

Excretory organ Excretory materials Form of excretion

Lungs ……………………… …………………………

……………………………. Water, salt ……………………………

………………………….. ……………………………. urine

Irritability and Co-ordination

Excretion


ii. Which organ in human body is mainly responsible for nitrogenous excretion?

iii. Name two excretory products in plants

iv. What is meant by metabolism?

v. Write the two forms of metabolism.

9. Both animals and plants show movements.

a. For what purposes do organisms locomote?

b. State different modes of locomotion of mammals and give two examples for each.

c. Give examples for different growth movements of plants.

10. Production of a new generation by a unicellular or a multicellular organism for the

continuation of their species is known as reproduction.

What are the two forms of reproduction?

11. The cell growth means the irreversible increase of dry mass of the cell. Development

means, the increase in the complexity of the cell.

Write the three steps in growth and development.


a. Identify the above set up

b. Name a potted plant that can be used to prepare this apparatus

12. Virus show both living and non-living features

a. Name a living feature of virus

b. What is the nucleic matter present in virus?

c. Name two plant virus diseases

d. Name two animal virus diseases

Movement

Reproduction

Growth and Development


Grade 10- Science

Unit-13

The world of life

Refer the unit 13 in the text book and write the answers

Classification of organisms

The life is originated on the earth about 3.6 billion years ago.

The first living organism was an unicellular bacteria.

Definition for Classification

Grouping of organisms into different levels based on their common characteristics is known

as classification.

Refer page no.2 and answer the following questions

1. What are the Significances of classification of organisms?

The methods of classification of organisms

Aristotle in 4thB.C. introduced the first scientific classification of organisms.

Carolus Linnaeus in 18th A.D. introduced a successful classification.

2. All organisms on earth including human is classified into two methods. What are the two

methods?

3. What are the differences between above two classifications?

4. Who introduced five kingdom classifications?

Three domain system of classification

Modern classification is introduced by Carl Woese in 1990 with three domains.

The 3 domains are,

1. Domain Archaea

2. Domain Bacteria

3. Domain Eukarya

Three Domain classifications

Domain Archaea Domain Bacteria Domain Eukarya

Kingdom Protista

Kingdom Fungi

Kingdom Plantae

Kingdom Animalia


Refer page no.4-9 and answer the following questions

Domain Archaea

5. Write two organisms that belong to domain Archaea

6. Write the environments in which organisms of this domain are found

7. These organisms cannot be destroyed with antibiotics. What is the reason?

Domain Bacteria

8. Who are prokaryotes?

9. What are the two types of organisms included in domain bacteria?

10. Do the organisms in this domain sensitive to antibiotics?

11. Who are the most abundant group of organisms in the world?

12. Draw the electron microscopic structure of typical bacteria cell

13. Write 2 instances where bacteria harmful to human

14. Write 5 diseases caused by bacteria

15. Write 5 instances where bacteria useful to human

Domain Eukarya

16. What are the 4 kingdoms belong to domain Eukarya?

17. Write two features of organisms belongs to domain eukarya.

Kingdom Protista

18. Identify the following organisms

A B

19. Write the environments in which organisms of this kingdom are found.

20. What are the mode of nutrition of the organisms belongs to kingdom Protista

21. Write 2 instances where kingdom Protista are useful to human

22. Write 3 human diseases caused by protozoans

Kingdom Fungi

23. Write the environments in which organisms of this kingdom are found

24. Write three features of organisms belongs to kingdom fungi

25. Write the 2 organism groups that make lichen

26. Write 4 instances where fungi are useful to human

27. Write 2 human diseases caused by fungi

28. Write a plant diseases caused by fungi


29. Name a fungi that is used to produced antibiotic


Kingdom Plantae

30. What are the common features of kingdom plantae

31. The plants in kingdom plantae, can be divided two groups based on the formation and

non-formation of flowers. What are the two groups?

Non-flowering plants

32. Name the two groups of non-flowering plants according to the ability of producing seeds

Non-flowering seedless plants

33. Identify the following non flowering seedless plants

A B C D

E F G

34. Following table summarize the features of non-flowering seedless plants. Complete it.

Feature Special facts

Structure

Shape

Nutrition

Reproduction

Distribution


Non-flowering seed plants

35. Identify the following non flowering seed plants

A B

36. Summarize the features of non-flowering seed pants in the given below table

Feature Special facts

Structure

Shape

Nutrition

Reproduction

Distribution

Flowering plants

Flowing plants can be divided into two groups according to the number of cotyledons in the

seed.

1. Monocotyledonae plants

2. Dicotyledonae plants

37. List out the features of 2 types of flowering plants in the following table

Feature Monocotyledonae Dicotyledonae

Cotyledon/s

Stem

Root system

Venation of leaves

Flowers

Secondary growth

Examples



Kingdom Animalia

It is a kingdom with animals, which are multicellular.

They are heterotrophic.

Kingdom Animalia again can be divided into two groups according to the presence or

absence of a vertebral column.

1. Invertebrates

2. Vertebrates

Invertebrates

Organisms without a vertebral column are known as invertebrates.

38. What are five main phyla which include all Invertebrates?

Cnidaria/Coelenterata

39. Identify the following Cnidarians

A B C

40. Write five Features of Cnidarians

41. What is known as diploblastic?

42. Following are two forms of Cnidarians. Identify them.

A B

43. State the main difference between above A and B forms


Annelida

44. Identify the following annelids

A B C

45. Write five Features of Annelids

46. What is meant by triploblastic?

Mollusca

47. Identify the following Mollusca

A B C

48. List another five examples for organisms in phylum Mollusca

49. Write five Features of Mollusca

Arthropoda

50. What is the phylum with the highest number of species in the animal kingdom?

51. What is the class of phylum Arthopoda possesses the highest number of organisms.

52. List ten examples for organisms in phylum arthropoda

53. Body of arthropod is segmented and several segments collectively form functional

segments called Tagma. Label the following A, B, C tagma

54. Write five Features of organisms in phylum arthropoda

Echinodermata

It is a phylum that shows phylogenetic (evolutionary) relationship to phylum chordata.

A

B

C


55. Identify the following organisms in phylum Echinodermata

A B C

56. Following diagram shows a special body system in phylum Echinodermata. What is it?

57. Tube feet are special structures present in phylum Echinodermata. Write two functions of

tube feet

58. Write five Features of organisms in phylum Echinodermata

Vertebrates

An organism with a vertebral column is referred to as a vertebrate.

59. Vertebrates can be classified into five groups considering their structural features. What

are the five groups?

Pisces

60. Identify the following organisms

A B C

61. What are the common features of Pisces?

62. Fish can be divided into two classes considering the endoskeleton.

Chondrichthyes - The fish with skeleton made up of cartilages belong to this class

Osteichthyes - The fish with skeleton made up of bones belong to this class

Use the given below table and differentiate the two classes.

Chondrichthyes Osteichthyes


Amphibia

63. Name following organisms

A B C

64. Write the common features of amphibian

Reptelia

65. Name five Reptilians

66. What are the common features of reptilian?

Aves

67. Write five examples for organisms in Aves

68. Write some features shown by Aves

Mammalia

69. Write ten examples for organisms in Mammalia

70. What are the common features of Mammalia?

71. Write 2 common characters of Aves and Mammalia

Refer page no.24 and answer the following questions

Binomial nomenclature

72. Who introduced the binomial nomenclature?

73. Why does it named as binomial nomenclature

74. Write five standards of binomial nomenclature

75. a) Write the scientific names of following organisms

Human

Coconut

Paddy

Na

Jungle fowl

b) According to the binomial nomenclature, the scientific name of the Asian elephant is

Elephas maximus

What are the names of the classification groups designed by the 2 parts of the above

name?

Elephas ………………………………. maximus ……………………………………

Grade 10- Science Unit-8 Characteristics of organisms › ... › 2020 › 04 ›...

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Transcript of Grade 10- Science Unit-8 Characteristics of organisms › ... › 2020 › 04 ›...