Transportation and Excretion 7th Biology Hots Solved Question
1. Excretion is the removal of metabolic
waste products called ---------------
(Excreta)
2. The mammalian RBCs are without
--------------------------(nucleus)
3. The heart is covered by a
protective double walled sac called -----------filled with ----------------( pericardium , pericardial fluid.)
4. The heart is made up of
special type of muscles, called ------------ (cardiac muscles)
5. The separation wall between right
and left side of heart is called ------------ (septum)
6. ------------ regulate the flow
of blood unidirectional from right auricle to right ventricle and not
backwards. (Valves)
7. Expanded condition of right and left ventricles when
full of blood is called ----------------. (Diastole)
8 The state of contraction of of right and left ventricles
is called -------- (systole)
9. ---------------- are thinnest blood vessel
(Capillaries)
10. Except the -------------- veins all other veins carry deoxygenated blood.( pulmonary)
11. ----------- are called as master chemist of our body.(kidney)
12. Kidneys eliminate the waste materials in the
liquid form called --------( urine)
13. Water
reaches great heights in the trees because of suction pull caused by --- (transpiration)
14._____ is the instrument to amplify the sound of
the heart. (Stethoscope)
15. Arteries branch into arterioles. Arterioles
branch into fine tubes called meta arterioles. The meta arterioles end up in
the tiny blood vessels called----------( capillaries).
16.The fluid part of blood is called ______________. Plasma
17.Blood
is red in colour due to the presence of a pigment called _________. Hemoglobin
18. The
___________ cells in our body fight against germs. White blood
19. __________
help in clotting of blood. Platelates
20.The
number of heart beats per minute is called _______________. Pulse rate
21.The
waste dissolved in water is removed as ______________.
Urine
22. The filtering of blood through an artificial kidney is called _____________.
dialysis
23. Salts
and urea is removed along with water as ______________. Urine
24.________________
carry blood from the heart to all parts of the body. Arteries
25.________________ carry blood from all parts of the body to the heart. Veins
CHOOSE THE CORRECT ANSWER:
1.Pulmonary
(vein / artery ) carry pure blood.
vein
vein
2.(Ammonia / urea ) is the excretory waste in
fishes.
ammonia
3.Phloem helps in the transport of (food / water)in plants.
food
4.Birds excrete
(urea / uric acid).
uric
acid
5.( Right / Left )side of the heart carries oxygen
rich blood.
Left
6.Blood is a (solid/liquid ) tissue.
liquid
7. ( William Harvey / William Beaumont ) discovered
the circulation of blood in humans.
William Harvey
8. ( Photosynthesis /Transpiration ) is the process
responsible for suction pull in plants.
Transpiration
WRITE TRUE
OR FALSE:
1. WBC transports oxygen.
FALSE:
2.Pulse rate indicate the rate of heart beat.
TRUE
3. Pure blood is circulated through the left part of heart.
TRUE
4. Xylem helps in the transport of food in plants.
FALSE:
5.Hydra and sponges posses blood circulatory system.
FALSE:
6. Human urine consists of 95% water, 2.5% urea and 2.5% other waste products.
TRUE
NAME THE FOLLOWING:
1. The organ which pumps blood.
Heart
2. The chambers of heart.
Auricles and Ventricles
3.The scientist who discovered blood circulation.
William Harvey
4. he parts of excretory system.
Kidney,skin,Lungs
5. A
group of cells that perform a particular function.
Tissue
6.The vein which carries oxygen rich blood to the heart.
pulmonary
7.The artery which carries carbon dioxide rich blood away from the heart.
Pulmonary
8.The vascular tissues in plants.
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