CBSE Questions for Class 10 Biology Life Processes Quiz 11 - MCQExams.com

Which one of the following is correct?
  • Left atrium and left ventricle - oxygenated blood, right atrium and right ventricle - deoxygenated blood
  • Left atrium and left ventricle - deoxygenated blood, right atrium and right ventricle - oxygenated blood
  • Both A and B
  • None of the above
  • Match column I with column II


Column-I
(Blood vessel

Column-II
(Function)
A
Superior vena cave
p
Carries deoxygenated
blood to lungs
B
Inferior vena cave
q
Carries oxygenated
blood to lungs
C
Pulmonary artery
r
Brings deoxygenated
blood from lower parts
of the body to the right
atrium
D
Pulmonary vein
s
Brings oxygenated
blood to the left atrium


t
Brings deoxygenated
blood from upper parts
of the body into the
right atrium

  • $$A= t, B = p, C =r, D = q$$
  • $$A= t, B = r, C = p, D = s$$
  • $$A = s, B = t, C =r, D = p$$
  • $$A = t, B = p, C=q, D = r $$
Which of the following blood vessels does not carry any carbon dioxide?
  • Pulmonary artery
  • Vena cava
  • Hepatic vein
  • Pulmonary vein
Which one of the following is the correct combination of the relevant materials required for setting up an experiment to show that light is necessary for photosynthesis.
  • Destarched leaves, strips of black paper, starch solution and iodine crystal
  • A potted plant, strips of coloured paper, starch solution, iodine and potassium iodide.
  • Destarched potted plant, strips of black paper, starch solution, potassium iodide.
  • Destarched potted plant, strips of black paper and iodine solution.
Food becomes .............. due to bile juice. 
  • Acidic
  • Alkaline
  • Neutral
  • First neutral and then acidic
Consider the following statements.
(a) In muscles, anaerobic respiration produces carbon dioxide, water and energy.
(b) Artificial kidney is a device to remove nitrogenous waste products from blood through dialysis.
(c) Food is translocated inside the plants through phloem.
Which of the above statements are correct?
  • (a) and (b)
  • (b) and (c)
  • (a) and (c)
  • None of the above
The normal systolic and diastolic pressure in human beings is
  • 80/120 mm of Hg
  • 130/90 mm of Hg
  • 120/80 mm of Hg
  • 140/80 mm of Hg
Which processes would be considered essential for maintaining life?
  • Nutrition and metabolism
  • Respiration
  • Transportation and excretion
  • All of the above
It is necessary to separate oxygenated blood from the deoxygenated blood in mammals:
  • To maintain the body temperature
  • To provide more oxygen to cells
  • Both A and B
  • To maintain body balance
Match the columns.
List 1List 2
A.Capillaries1.Carries digested fat 
B.Lymph2.Oxygenated blood
C.Left ventricle3.Deoxygenated blood
D.Pulmonary artery4.RBC
E.Haemoglobin5.Exchange of materials
F.Birds6.Three-chambered heart
G.Fish7.Four-chambered heart
H.Amphibians8.Two-chambered heart
  • H- 7, G- 8, F- 6, E- 5, D- 3, C- 4, B- 1, A- 2
  • H- 6, G- 8, F- 7, E- 5, D- 3, C- 4, B- 1, A- 2
  • H- 6, G- 8, F- 7, E- 4, D- 3, C- 2, B- 1, A- 5
  • H- 6, G- 8, F- 7, E- 4, D- 2, C- 2, B- 1, A- 5
What are outside raw materials used by an organism?
  • Food by heterotrophic organisms
  • Carbon dioxide, minerals and water by autotrophic organisms
  • Oxygen by all aerobic organisms
  • All of the above
Write the reaction number in front of the following.
Anaerobic reaction  is 
210226_0a3dd3ea5c5a4e36ae84ef2d12f25f10.png
  • 5
  • 3
  • 2
  • 1
In the lungs, a high number of alveoli means:
  • Less area for inspired air
  • More area for diffusion
  • Increased sponginess
  • Increased nerve supply
A student poured alcohol on a plant continuously for a long time. Why can the plant not prepare its own food?
  • Alcohol absorbed all the food prepared by the plant.
  • Alcohol does not let the plant to absorb carbon dioxide from the air.
  • Alcohol dissolved all the minerals present in the plant.
  • Alcohol dissolved chlorophyll present in the plant.
Mammals are said to have double circulation, it means
  • Blood vessels are paired
  • There are two types of blood vessels attached to every organ
  • There are two systems
  • The blood circulates twice through the heart
Main function of kidney is:
  • Passive absorption
  • Ultrafiltration
  • Selective reabsorption
  • All of the above
An artificial kidney contains a number of tubes with a ________ lining, suspended in the tank filled with dialysing fluid.
  • Permeable
  • Semi-permeable
  • Impermeable
  • Non-permeable
The $$.............$$ checks the entry of food into the respiratory tract.
  • Glottis
  • Tounge
  • Epiglottis
  • Pharynx
The excretory system of human beings includes a pair of ............, a pair of ........... a ........... and a .......... which helps in the removal of metabolic wastes from the human body. 
  • Kidneys, ureters, urinary bladder, urethra
  • Urethra, ureters, urinary bladder, kidneys
  • Kidneys, urethra, ureters, urinary bladder
  • Kidneys, urinary bladder, ureters, urethra
Bile and pancreatic ducts open into 
  • Large intestine
  • Stomach
  • Colon
  • Small intestine
Tooth decay is caused by the presence of a base.
  • True
  • False
In humans, kidneys which help in the filtration of blood, are located in the ______ region, one on either side of the ______.
  • Thoracic cage, lungs
  • Thoracic cage, heart
  • Backbone, abdomen
  • Abdomen, backbone
Respiration and photosynthesis are
  • Opposite processes.
  • Similar processes.
  • Burning processes.
  • None of the above.
The salivary glands secrete 
  • Amylase
  • Pepsin
  • Trypsin
  • Bile juice
Which of the following gases makes the most stable combination with the haemoglobin of red blood cells? 
  • $${ CO }_{ 2 }$$
  • $$CO$$
  • $${ O }_{ 2 }$$
  • $${ N }_{ 2 }$$
Which of the following is not a characteristic of good respiratory surface?
  • Thin and moist
  • Large surface area
  • Close to oxygen and gas transport.
  • Thick and dry surface
Which life process is classified as autotrophic in some organisms and heterotrophic in others?
  • Hormonal regulation
  • Nutrition
  • Anaerobic respiration
  • Transport
Number of living organisms are known to us about
  • 1. 4 million
  • 4 million
  • 1.8 million
  • 1.9 million
Blood pressure is high in ___ and lowest in _____.
  • Arteries; veins
  • Arteries; ventricles
  • Arteries; relaxed atria
  • Arterioles; veins
The human intestine is long because:
  • It allows the gradual killing of bacteria in the food.
  • It provides more surface for food storage.
  • It increases surface area for absorption of food.
  • There is much space left in the abdominal cavity.
In normal blood pressure 120/80 the denominator  indicates ........... pressure.
  • Systolic
  • Diastolic
  • Both A and B
  • None of the above
What is raphides?
  • Plants store the waste product in fruits of the plant in the form of solid bodies.
  • Water vapour produced as a waste by respiration
  •  The plants secrete their wastes in the form of gum
  • Carbon dioxide and water vapor are produced as wastes during respiration by plants 
A schematic representation of the blood circulation is given. Which of the circulatory parts are incorrectly placed in it?
318868_8a493bca37e34f7a9587a174c454a689.jpg
  • Right atrium and right ventricle
  • Left atrium and left ventricle
  • Pulmonary artery and pulmonary veins
  • Aorta and vena cava
A transport system is needed to transport
(i) Nutrients, oxygen and hormones from the place, they are absorbed or received to the cells.
(ii) Waste products from the place they are formed to the place from where they are eliminated outside.
(iii) Heart beat, chromosome.
  • (i) and (ii) correct
  • (i) and (iii) correct
  • (ii) and (iii) correct
  • (i) , (ii) and (iii) correct
If the rate of translocation of food is slow then the rate of photosynthesis will:
  • Remain the same
  • Become double
  • Decrease
  • Increase
Most of the carbon dioxide in the blood is carried in the form of 
  • Carbonic acid.
  • Bicarbonates.
  • Carbaminohaemoglobin.
  • Dissolved CO$$_2$$.
When the right ventricle in the human heart contracts, the blood moves to:
  • Aorta
  • Brain
  • Lungs
  • Pulmonary artery
Which one of the following helps in the upward movement of water and dissolved minerals from the roots to the leaves through the stem ?
  • translocation
  • transportation
  • transpiration
  • transaction
Blood enters the heart because of the 
  • Auricular diastole
  • Ventricular systole
  • Ventricular diastole
  • Auricular systole
Which of the following regions of the alimentary canal of human beings does not secrete a digestive enzyme?
  • Oesophagus
  • Stomach
  • Duodenum
  • Buccal cavity
Consider the following statements regarding blood pressure.
1. It is the pressure exerted by the blood on the walls of any blood vessel.
2. It decreases in the arteries as the distance from the heart increases.
3. It is lower in the capillaries than in the arteries.
4. It is usually lower in women than in men.
  • 1 and 4 are correct.
  • 2, 3 and 4 are correct.
  • 1 and 3 are correct.
  • 1, 2, 3 and 4 are correct.
The main waste component present in the blood, that needs to be filtered when the blood passes through the dialysing fluid of a dialysis machine is:
  • Cellulose
  • Glucose
  • Water
  • Urea
Group AGroup B
1.Bowman's capsuleA.Bundle of blood capillaries seen in Bowman's capsule
2.GlomerulusB.Renal dialysis
3.ReabsorptionC.The cup-shaped upper end of the nephron of kidney
4.Artificial kidneyD. Observed in marine and terrestrial animals
  • 1- A, 2- C, 3- D, 4- B
  • 1- B, 2- A, 3- D, 4- C
  • 1- A, 2- D, 3- B, 4- C
  • 1- C, 2- A, 3- D, 4- B
Chief function of HCl is
  • To maintain a low pH to prevent growth of microorganisms.
  • To facilitate absorption.
  • To maintain low pH to activate pepsinogen to form pepsin.
  • To dissolve enzyme secreted in stomach.
Blood pressure in the veins is lower than that of arteries. The best hypothesis to explain this is that 
  • Capillaries offer resistance to the blood flow
  • Veins are farther from the heart
  • Most veins carry blood up-hill
  • Veins have thinner walls than arteries
Small intestine receives secretions from the
  • Only liver
  • Only pancreas
  • Both A and B
  • None of the above
In plants, food transport occurs chiefly with the help of
  • Xylem
  • Phloem
  • Trachieids
  • All
For transport of food in plants it requires ________
  • ATP and phloem
  • ADP and phloem
  • ATP and xylem
  • ADP and xylem
Which part shows the presence of lymph node?
455882_9c2f4f4c52734a60bfad5654e29e72e5.png
  • A
  • G
  • C
  • All of the above
The fluid present between the blood capillaries and the cell membrane, through which gasses, nutrients, and metabolic wastes are exchanged between the blood and the cells are called as:
  • Lymph
  • Plasma
  • Serum
  • Normal saline
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