Unit 1 - Laws of Motion

Unit 1        -         Laws of Motion

One word answers

1.       Mechanics is the branch of physics that deals with effect of force on bodies.

2.       Statics deals with the bodies, which are at rest under the action of forces.

3.        Dynamics is the study of moving bodies under the action of forces.

4.        Kinematics deals with the motion of bodies without considering the cause of motion.

5.        Linear momentum = mass x velocity.

6.        Unit of momentum in SI system is km m/s.

7.        Unit of momentum in C.G.S. system is g cm/s.

8.       Based on the direction in forces can be classified into like and unlike parallel forces.

9.        Unit of torque in SI system is N m.

10.    Unit of moment of couple in SI system is N m.

11.    Unit of moment of couple in C.G.S. system is Dyne cm.

12.    Unit of force in SI system is Newton.

13.    Unit of force in C.G.S. system is Dyne.

14.    Weight = mass x acceleration due to gravity.

15.    Surface of the moon is 1.625 m seconds square

Book inside questions and answers - Unit 12 Plant anatomy and plant physiology

                                                       Additional  questions

1.       Explain dermal or epidermal tissue system.

2.        Explain the tissue system and it's functions.

3.       Explain the vascular tissue system and it's types.

4.       Define the term concentric bundles.

5.       Explain the term conjoint bundles and it's types.

6.       Explain the internal structure of dicot root.

7.       Define casparian strips.

8.       Explain the characteristic feat of internal structure of monocot root.

9.        Write the meaning of stele.

10.   Explain the structure of dicot stem.

11.    Define starch sheath.

12.    Write the three regions of cortex and explain.

13.    Explain the internal structure of monocot stem.

14.    Write the meaning of protoxylem  lacuna.

15.    Write the differences between dicot and monocot stem.

16.    Explain the internal structure of dicot leaf.

17.   Define mesophyll.

18.   Explain the internal structure of monocot leaf.

19.    Write the differences between dicot and monocot leaf

20.    What is plastics and write their types.

21.    Define chlorophyll.

22.    Explain the structure of chloroplast.

23.   what are the functions of chloroplast.

24.   Write the process involved in the photosynthesis.

25.   Where does photosynthesis Occur?

26.    Write briefly about photosynthetic pigments.

27.   Define tissues.

28.   What are the classifications of plant tissues?

29.   What are the plant tissues according to Sachs?

(Contd) 

Unit 12 Plant anatomy and plant physiology

             10^th std                                                   Science                       new syllabus

                                     Unit 12  Plant anatomy and plant physiology 

                Book inside questions and answers

           

1.       Define tissues.

        Tissues are the group of cells that are similar or dissimilar in structure and origin, but perform similar functions.

2. What are the classifications of plant tissues?

              The plant tissues can be broadly classified into two, based on their ability

               1. Meristamatic tissue

               2. Permanent tissue.

 3. What are the classifications of plant tissues according to Sachs?

                             Sachs (1875) classified tissue system in plant into three types.

                          1. Dermal or epidermal tissue system

                          2. Ground tissue system

                          3. Vascular tissue system

  

இளநரை நீங்க, மார்பு சலிப்பு நீங்க

இளநரை நீங்க

             நெல்லிமுள்ளி 50 கிராம்,

             கறிவேப்பிலை 50 கிராம்,

             வேப்பந்தட்டை 50 கிராம்,

             பிஞ்சுக் கடுக்காய் 50 கிராம்,
            அவுரி விதை 50 கிராம்.

            வறுத்து அரைக்கவும்.

            பிறகு செக்கு தேங்காய் எண்ணெயில் கலந்து  சூரிய வெளிச்சம்

            படும் படி 1 அல்லது 2 நாட்கள் வைக்கவும்.

            தினமும் அதை தலையில் தடவி வந்தால் பலன் கிடைக்கும்.

                                                           மார்பு சலிப்பு நீங்க

            சுண்டைக்காய் வற்றல் 25 கிராம்,

            மணமக்களின் வற்றல் 25 கிராம், 

            அரிசி திப்பிலி 25 கிராம்,

             கண்டந்திப்பிலி 25 கிராம்,

             தனியா 25 கிராம்,

            காய்ந்த மிளகாய் 3,

            மிளகு 1 கரண்டி,

            சீரகம் 1 கரண்டி,

            சுக்கு தூள் 1 கரண்டி.

            வறுத்து அரைக்கவும்.

            அதை தினமும் 1 சிறிய ஸ்பூன் அளவு சாப்பிடவும்.

            சளி,  இருமல், தும்மல் குறையும்.

10 th Std Science one word Question & Answers

10 th Std Science one word Question & Answers

UNIT 12 - PLANT ANATOMY AND PLANT PHYSIOLOGY

1.       Nehemiah Grew is known as father of Plant Anatomy.

2.       Plant tissues can be broadly classified into Meristamatic, Permanent tissue.

3.       Cuticle is present on the outer wall of epidermis to check evaporation of water.

4.       Vascular tissue system is consists of xylem and phloem tissues.

5.       Xylem conducts water and minerals to different parts of the plant.

6.       Phloem conducts food materials to different parts of the plant.

1.       Cortex is a multilayered large zone made of thin walled parenchymatous cells with intercellular spaces.

2.       Endodermis is the innermost layer of cortex.

3.       The tissue present between xylem and phloem is called conjunctive tissue.

4.       The large central parenchymatous zone with intercellular spaces is called pith.

5.       Each vascular bundles is surrounded by few layer of sclerenchyma cells called bundle sheath.

6.       The tissue present between the upper and lower epidermis is called mesophyll.

7.       Chloroplasts re green plastids containing green pigment called chlorophyll.

8.       Light dependent photosynthesis was discovered by Robin Hill (1939).

9.       Melvin Calvin, an American biochemist discovered chemical pathway for photosynthesis.

10.   The mitochondria were first discovered by Kolliker in 1857.

11.   The mitochondrion is referred to as the “power house of the cell.”

12.   Carparian strips are present in the endodermis of the root.

13.   The endarch condition is the characteristic feature of stem.

14.   The xylem and phloem arranged side by side on same radius is called conjoint.

15.   Ethyl alcohol is formed during anaerobic respiration.

16.   Krebs’s cycle takes place in mitochondrial matrix.

17.   Cortex lies between epiblema and endodermis.

18.   Xylem and phloem occurring on the same radius constitute a vascular bundle called conjoint bundle.

19.   Glycolysis takes place in Aerobic respiration.

20.   Mitochondria is ATP factory of the cells.