CBSE X Ch.Transportation in Animals Biology Class VI to X

Transportation in Animals Biology Class 6th to 10th  Revision of  Chapters
Blood is a fluid connective tissue that includes plasma, blood cell and platelets.
Plasma is a fluid substance that transports gases, nutrients, nitrogenous waste.
Hemoglobin is a respiratory pigment which carries oxygen through red blood cells. The amount of hemoglobin varies in different animals.
Blood vessels are tube like and forming a intricate net work to transport blood to various parts of body. They are mainly arteries and veins.
Arteries carry oxygenate blood from heart to different parts of body.
Veins carry deoxygenated blood from body parts to heart.
Capillaries are the fine branches of blood vessels which are deeply innervated into the tissues, organs and organ systems.
Platelet prevents bleeding of blood from blood vessels and body parts by forming a blood clot.
Lymph is a colorless tissue fluid which contains less proteins than plasma and lacks RBC.
Structure of heart consists of two atria and two ventricles in mammals. Fishes are able to extract 80% of the oxygen contained in water passing over their gills.
Heart is a pumping organ for blood in animals. It has structural differences in animals.
Blood circulation - Deoxygenated blood carried to right atrium, and oxygenated blood carried to left atrium.
Right ventricle pumps deoxygenated blood to lungs and left ventricle pumps oxygenated blood to body organs. The force applied by blood in blood vessels is called Blood pressure.
The pressure exerted by blood against the wall of the artery during ventricular contraction or systole is called systolic pressure.
Arteries carry oxygenated blood from the heart to various parts of the body. The walls of the arteries are thick and elastic. The smallest vessels have walls that are one cell thick, and are called capillaries.
Veins carry deoxygenated blood from parts of the body to the heart. They have thinner and less muscular walls.
Platelets prevent bleeding from blood vessels and body parts by forming blood clots.
Lymph is a colorless fluid that contains less protein than plasma, and lacks RBC.
The heart consists of two atria and two ventricles in mammals. In humans, it is about the size of their fist.
Fish have a two-chambered heart with one ventricle and one atrium. Fish have single circulation.
Amphibians and reptiles have three-chambered hearts with two atria and one ventricle. They have incomplete double circulation.
In humans, deoxygenated blood is carried to the right atrium, and oxygenated blood to the left atrium. The right ventricle pumps deoxygenated blood to the lungs, while the left ventricle pumps oxygenated blood to the organs of the body. Humans have complete double circulation.
The valves in the ventricles and atria ensure that blood does not flow backwards during contraction or expansion.
The force applied by blood in blood vessels is called blood pressure. This pressure is much greater in the arteries than in the veins
The pressure exerted by blood against the wall of an artery during ventricular contraction or systole is called systolic pressure, and that exerted during ventricular expansion or diastole is called diastolic pressure.
An instrument called the sphygmomanometer is used to measure blood pressure. The normal systolic pressure is about 120 mm of Hg, and diastolic pressure is 80 mm of Hg.

Comments

Post a Comment

Popular Post

Obtaining and Utilization Food Class 7 Science Solved question (Basic Science Questions answers)

Image
A. Answer these questions 1. Name the three life process help living being to procure energy from food? Answer: Three life processes that help living organisms to procure energy from food are: (i) Digestion (Nutrition) (ii) Respiration (iii) Transportation 2. What are Autotrophs? Name an organism other than other than green plant that is an autotroph. Answer: Autotrophs are organisms that can prepare their own food. Chlamydomonas is a type of green algae which is an example of an autotroph, other than green plants. Cyanobacteria are also an example of autotroph. 3. Name three type of heterotrophic nutrition Answer: Three types of heterotrophic nutrition are: (i) Saprophytic nutrition (ii) Parasitic nutrition (iii) Holozoic nutrition 4. What are enzymes? Answer: Enzymes are chemical substances that act as biological catalysts and are important for carrying out biochemical processes, such as digestion, in our body
Read more

Plants fiber and fabric solution Cordova Learning Science class07

Image
A Tick the correct options: 1. Which of the following is not a natural fibre? (a) cotton (b) rayon √ (c) silk (d) wool 2. Lohi is the breed of (a) cow (b) silk moth (c) sheep √ (d) buffalo 4. Sheep are sheared in season (a) summer √ (b) spring (c) autumn Ö (d) winter 3. How many weeks are required for the eggs of silk moth to hatch? See book (a) one (b) two √ (c) three (d) four 6. Which of the following silk is produced when raw silk is twisted? (a) spun (b) coloured (c) thrown √ (d) mooga 5. What do we call the silky covering spun by the silkworm for its protection? (a) moth (b) larvae (c) pupa (d) cocoon√ B. Fill in the blanks: 1. Alpaca is generally f
Read more

Class9 Biology chapter Cell the Fundamental unit of life :Assignment solved

Image
1. What is plasma membrane? What are their functions? Ans: Plasma membrane also called as cell membrane, is the outer covering of a cell that separates the cell contents (protoplasm) from the surrounding medium. It is made up of proteins and lipids. It gives form (shape and size) to the cell It maintains the individuality of the cell (i.e. seperates cells) It keeps the cell contents in place 2. What are cell organelles ? Ans: The certain specific living parts of a cell with a definite function are celled Cell organelles. All cell are found to have same organelles and together these constitute to the basic unit of life. 3. What is cellulose and its functions? Ans: Cellulose is the main component of a plant cell wall. It is responsible for giving structural shape to the cell and also to protect the protoplasm. 4.  What is a Prokaryotic cell? Give an Example. Ans: The cells that do not have a nuclear membrane and membrane
Read more

IX Physics Class - IX Chapter - MOTION Assignment 2012-13

Sadhana Devi Vidyapith , Samastipur  ASSIGNMENT -1, (2012-13) By JSunil Sub. – Physics, Class - IX Chapter - MOTION 1 Mark questions Q. 1. Define the term displacement. Is it a vector quantity or a scalar quantity? Q. 2. Define the term distance. Is it a vector quantity or a scalar quantity? Q. 3. The displacement of a body can never be greater than the distance covered by a body. Is the statement true or false? Q. 4. Can a body have zero velocity and still acceleration? Give example. Q. 5. What is the nature of distance time graph for uniform motion of an object? Q. 6. What is the acceleration of a freely falling body? Q. 7. What is the acceleration of a body moving with uniform velocity? Q. 8. What does the slope of a distance-time graph gives? Q. 9. What does the area of a velocity-time graph gives? Q. 10. Give two examples of vector quantities. 2 Marks q
Read more

10th Maths Quadratic Equation Worksheet For CBSE Students]

Image
Central Public School,Samastipur And Sadhana Devi Vidyapith, Samastipur [Student Practice] Quadratic Equations  : Contents 1. Standard form of a quad. Equations:  ax 2 + bx + c = 0 (a ≠ 0) 2. Solution of the quadratic equations only real roots by  (a) Factorization           (b) Completing the square                 (c) Quadratic formula 3. Relationship between discriminant and nature of roots. if D > 0 => Real & Distinct Roots          if D = 0 => Real & Equal Roots        if D < 0 => No Real Roots 4. Problems related to day to day activities Learning Objective: To learn the following facts 1. A second degree Equation of the form ax 2 + bx + c = 0 where a, b, c are real numbers and a ≠ 0 are called quadratic eqn. 2. If ax 2 + bx + c = 0 equivalent to (x – a) (x – b) = 0 then x = a and x = b is a solution. 3. If ax 2 + bx + c = 0 has a & b as roots of eqn then sum of roots = – b/a. Product of roots = c/a. 4. (b 2 – 4ac)
Read more