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Syllabus
Question 2
(a) Given below is a diagrammatic representation of a certain part of the process of circulation of blood in man. Study the same and then answer the questions that follow:
(ii) Give the number and name of the vessel which contains the maximum amount of urea a few hours after a protein rich meal.
Aorta,hepatic vein,hepatic portal vein,stomach,liver
2. Give the characteristics of hormones pertaining to
(i) Site of action............................................
(ii) Chemical nature......................................
(iii) Manner of transportation.......................
Q.4. The diagram below shows the part of the capillary bed in an organ of the human body. Some of the blood arriving at the capillaries at points labelled A, moves out into the spaces between the tissue cells. Study the diagram and answer the questions that follow :
(a) When the liquid from the blood surrounds the cells, what is it called?
(b) Name any one important component of the blood which remains inside the capillaries and fails to move out into the spaces.
(c) Some of the liquid surrounding the cells does not pass directly back into the blood but eventually reaches it by another route through vessel X. Name the fluid present in vessel X.
(d) State two important functions performed in our body by the fluid present in the vessel X.
(a) The organ which produces urea
(b) The outer region of kidney containing the Bowman's capsule.
(c) The tuft of capillaries inside the Bowman's capsule.
(d) The part of kidney tubules where the term urine is first used for the fluid in it.
or False (F) :
(i) Oviducts and fallopian tubes are one and the same thing.
(ii) One egg is released from each of the two ovaries every month.
(iii) The enlarged mature follicle bursts to release the egg.
(iv) The egg is passed down through the oviduct by muscular contractions.
(v) Clitoris is equivalent to the male penis.
supply
Parts indicated by the guidelines 1 to 8 are as follows :
I. Afferent arteriole from renal artery;
2. Efferent arteriole
3. Bowman's capsule,
4. Glomerulus;
5. Proximal convoluted tubule with blood capillaries;
6. Distal convoluted tubule with blood capillaries;
7. Collecting tubule:
8. U-shaped loop of Henle.
Study the diagram and answer the questions that follow :
(a) Where does ultrafiltration take place ?
(b) Which structure contains the lowest concentration of urea?
(c) Which structure Contains the highest Concentration of urea?
(d) Which structure (normally) contains the lowest concentration of glucose ?
(e) Where is most water reabsorbed ?
a. Cornea b. Sclerotic layer
c. Optic nerve
2. Structure that carries electrical impulse from dendrite to nerve endings of neuron
3. Function of cerebral cortex
4. Appropriate term for muscular extention pf camda epididymis
5. Q5(a) in the picture
5. (a) The diagram below represent a microscopic view of human egg ( or egg cell)
(i) Name the parts labelled as A, B, C and D respectively.
(iii) Which part of the egg fuse with the sperm to form a zygote?
(iv) Draw a diagram of the process of fusion of egg and sperm.
(ii) (a) What principal function is associated with X?
(b) What principal function is associated with Z?
(iii) What is the significance of the foldings in the surface of the brain ?
Q.8. Given below is a diagrammatic representation of certain types of blood vessels in human body.
(a) Identify the types of blood vessels numbered 1 to 5.
(b) Where can such an arrangement be found as an example - in lungs or in heart walls?
b. The diagram shows the four major lobes of each hemisphere of the cerebrum. Label the parts 1-6. Then fill in the blanks below with correct answer.
The _____i_____lobes control some body movement, reasoning, judgments, and emotions. The sense of vision is located in the ___ii_____ lobe. The sense of hearing is interpreted in the ___iii___lobe. The ___iv___lobes interpret sensation such as pain, pressure, touches, hot and cold.
3. Differentiable between following pairs with reference to the aspect in brackets.
(a) Cerebrum and cerebellum (function).
(b) Sympathetic nervous system and para-sympathetic nervous system (overall effect on body).
(c) Sensory nerve and motor nerve (direction of impulse carried).
(d) Medulla oblongata & Cerebellum (function)
(e) Cerebrum and spinal cord ( arrangement of cytons and axons of neurons ).
(ii) Why does part 2 has a stripped appearance?
(v) Name the two major steps in the formation of fluid that passes down part 4.
(b) There are two kinds if diabetes (mild and severe) related with two different hormones True/False
(c) Simple goitre can be prevented by using iodised salt in
food. True/False
(d) Pituitary is popularly called the master gland. True/False
(e) Hormones "obey" the commands like "enough. slow
down or "two little, speed up". True/False
(f) Gigantism and dwarfism in humans basically depend
on the quality and quantity of the food eaten during True/False
Solve this:
24) Basophils release chemicals called _______________for inflammation.
25) Resistance of the body against diseases is called _______________
26) The property by which WBC squeeze out through the walls of the blood capillaries is called _______________
27) The dead WBCs pass out of wounds together with tissue cells as _______________
28) _______________involves redness, swelling and pain in the region of wound.
29) Antibodies act as _______________to neutralize the poisonous effect of the toxins.
30) _______________is the smallest sized corpuscles of the blood.
31) _______________ and _______________are denucleated in mammals.
32) Giant cells of bone marrow that give rise to platelets are called _______________
33) The lifespan of blood platelets is about _______________ days.
34) Blood platelets are responsible for
35) _______________initiates the chain of reactions involved in blood clotting.
36) Production of blood corpuscles is called_______________
37) _______________stops bleeding and prevent loss of vital body fluids.
38) Blood loss is called _______________
39) _______________is the mineral and _______________is the vitamin needed for blood clotting.
40) _______________is the insoluble protein which helps in the formation of clot.
41) The substances which prevent clotting of blood are called _______________
42) _______________ and _______________are used as anticoagulants.
43) _______________in leech and_______________in salivary gland of leeches are anticoagulants
44) _______________is a genetic disorder in which blood fails to clot when it comes out of blood vessels through any injury.
45) The transfer of blood from a healthy donor to a recipient in case of accidents or emergency is termed as _______________
46) _______________is the Scientists who first discovered different types of blood groups.
47) Clumping together of blood is called _______________
48) Antigens are present on the _______________of RBC whereas antibodies are present in the_______________
PROGRESS CHECK
1. State which of the following statements are True.
(i) Process of coagulation starts with the release of a substance from RBCs.
(ii) Blood fails to clot readily in the case of deficiency of calcium.
(iii) The solid fibrin and thrombin are one and the same thing.
(iv) The clear liquid that oozes out after the formation of a clot is serum.
2. Name the following.
(i) The category of vitamin required for clotting of blood.
(ii) Any two diseases related with blood clotting .
(iii) The antibodies present in the plasma of O type blood group.
(iv) The animal for which Rh stands in the context of blood group.
6. The table below is designed to indicate the transport of certain substances in our body. Fill in the blanks with suitable answers.
Q.1. Name the two fluids that circulate in the body.
Q.2. In the diagrams we conventionally show veins in blue. What is the actual colour of the blood flowing through the following ?
(i) In arteries (ii) In veins (iii) In capillaries
Q.3. In a coloured diagram why do we generally show the pulmonary artery in blue and pulmonary vein in red colour ?
Q.4. Name any four substances transported by blood.
1.Name the sense organ.
2.What are the parts labelled "m", "i" and "s" ? What do these three parts constitute collectively?
3.What do you call the part shown in the form of a spiral? What is its function?
4.Name the part labelled "tm"? What is its function?
PROGRESS CHECK
1. Name the following :
(i) The yellow coloured fluid part of the blood.
(ii) The respiratory pigment contained in RBC's .
(iii) Any two organelles absent in mature RBC's.
(iv) The process of WBC's squeezing out through the walls of the blood capillaries.
2. Mention the following :
(i) Average lifespan of RBC's.
(ii) Range of RBC's per mm3 in a normal adult human female.
(iii) The two major categories of WBC's.
(iv) Blood cells involved in leukaemia.
IT IS MUST TO KNOW THE BLOOD GROUP OF BOTH THE DONOR AND THE RECIPIENT BEFORE TRANSFUSING BLOOD.?
a) Name the parts labelled 1-4.
b) What is the main function of the parts labelled 1,2 and 3 respectively?
c) What is the lifespan of the part labelled 1?
d) Name a soluble protein found in 4 which helps in clotting of blood.