NCERT Class 11/MCQ Questions for Class 11 Biology sets 4 Sample Test,Sample questions

Question:
Aerobic respiratory pathway is also termed as ______ pathway.

1.Anabolic

2.Catabolic

3.Creatine phosphate

4.Amphibolic


Question:
Among the following stem cells, which are found in the umbilical cord?

1.Cord blood stem cells

2. Adult stem cells

3. Embryonic stem cells

4.All of the above


Question:
An adult human has systolic and diastolic pressures as:

1. 80 mm Hg and 120 mm Hg

2.120 mm Hg and 80 mm Hg

3.50 mm Hg and 80 mm Hg

4. 80 mm Hg and 80 mm Hg


Question:
Arteries are best defined as the vessels which

1.Carry blood from one visceral organ to another visceral organ

2.Supply oxygenated blood to the different organs

3.Carry blood away from the heart to different organs

4.Break up into capillaries which reunite to form a vein


Question:
Artificial pace maker is transplanted in

1. Inter auricular septum

2.Below the collar bone

3.Inter ventricular septum

4.Right auricle


Question:
Assimilation means

1.utilising the water taken by body

2.accumulating the food for digestion

3.utilisation of absorbed substances

4.collecting wastes left after the absorption of required nutrients


Question:
Average blood filtered by kidneys per minute is

1. 1000 – 1500 mL

2.500 – 600 mL

3. 200 – 300 mL

4. 1100 – 1200 mL


Question:
Cardiac arrest is the state when

1.heart stops beating

2. inadequate blood supply to the heart

3.heart not pumping enough to meet the body needs

4.blood pressure increases


Question:
Carrier ions like Na+ facilitate the absorption of substances like

1.Fructose and some amino acids

2.Amino acids and glucose

3.Glucose and fatty acids

4.Fatty acids and glycerol


Question:
Christmas disease is also known as

1.Haemophilia B

2. AIDS

3.Haemophilia A

4.Haemolytic jaundice


Question:
Correct enzyme-substrate pair is

1.Maltose-lactase

2. Protein-amylase

3.Carbohydrate-lipase

4.Casein-rennin


Question:
Deoxygenated blood from heart comes to lungs via

1.pulmonary vein

2. systemic vein

3.pulmonary artery

4.systemic artery


Question:
Duct leading from parotid gland and opening into vestibule is

1.Wolffian duct

2.Stensons duct

3.Haversian duct

4.Infra-orbit duct


Question:
Duration of cardiac cycle is

1. 0.7 sec

2.0.9 sec

3.0.8 sec

4. 0.11 sec


Question:
During prolonged fasting, in what sequence are the following organic compounds used up by the body?

1.First carbohydrates, next proteins and lastly lipids

2.First carbohydrates, next fats and lastly proteins

3. First fats, next carbohydrates and lastly proteins

4.First proteins next lipids and lastly carbohydrates


Question:
Emulsification of fat takes place through

1.Liver enzymes

2. Bile pigments

3.Bile salts

4.Enzymes of small intestine


Question:
Epithelial cells of the intestine involved in food absorption have on their surface

1.phagocytic vesicles

2.pinocytic vesicles

3.microvilli

4.zymogen granules


Question:
Globet cells of intestinal mucosal epithelium secrete

1.mucus

2.cholesterol

3.peptones

4.bilirubin


Question:
Growth in dorsiventral leaf is measured in terms of

1.length of leaf

2. increase in cell number

3.surface area increase

4.None of these


Question:
Heart failure occurs due to

1.heart stops beating

2.damage of heart muscles

3.congestion of lungs

4.All of the above


Question:
Heparin is

1.Anti-allergic

2. Blood diluter

3.Anticoagulant

4.Antiseptic


Question:
If a man takes large amount of protein, he is likely to excrete more amount of

1. Glucose

2.Urea and uric acid

3.Water

4.Salts


Question:
If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?

1.The flow of blood into the pulmonary artery will be reduced

2.The flow of blood into the aorta will be slowed down

3.The pacemaker will stop working

4.The blood will tend to flow back into the left atrium


Question:
If vagus nerve is cut the heart beat

1.increases

2.decreases

3. will not be affected

4.will stop immediately


Question:
In brain, respiratory control centre lies in

1. pons

2.medulla oblongata

3.hypothalamus

4.cerebrum


Question:
In developing embryo RBCs are formed in

1.Lymph node

2. Bone marrow

3.Liver

4.Spleen


Question:
In glycolysis ultimately

1.starch is converted into glucose

2.glucose is converted into fructose

3.protein is converted into glucose

4.glucose is converted into pyruric acid


Question:
In humans, blood passes from the post caval to the diastolic right atrium of heart due to:

1.Pressure difference between the post caval and atrium

2.Pushing open of the venous valves

3.Suction pull

4.Stimulation of the sino auricular node


Question:
In the above picture Q represents

1.exitation of the atria

2.depolarisation of ventricles

3. begining of systole

4.repolarisation


Question:
In the kidneys, osmotic pressure controls ______

1.Glucose absorption

2. Sodium absorption

3. Water absorption

4.None of these


Question:
JG cells release

1.angiotensin II

2.aldosterone

3.renin

4.ANF


Question:
Kidneys are located in

1.thoracic cavity

2.abdominal cavity

3.body cavity

4.pelvic cavity


Question:
Label the parts of the human respiratory system.

1.A- Oesophagus, B- Bronchioles, C- Lungs

2. A- Trachea, B- Bronchioles, C- Lungs

3.A- Trachea, B- Bronchus, C- Lungs

4.A- Oesophagus, B- Bronchioles, C- Pleura


Question:
Mechanism of development was explained by
(a) 

1.Hans Dietrisch

2. Spemann

3.Both a and b

4.Haemmerling


Question:
Mobilisation of stored food in germinating seeds is triggered by

1.auxins

2.cytokinins

3.gibberellins

4.ethylene


Question:
Most water and salts are reabsorbed in

1.DCT

2. Bowman s capsule

3.PCT

4.DCT and PCT


Question:
Nerves, blood vessels and ureter enters into the kidney through

1.calyces

2.hilum

3.capsule

4.cortex


Question:
Ornithine cycle leads to the formation of

1.NH3

2. ((NH2)2)CO)

3.C5H4N4O3

4.C5H4N4


Question:
Oxygenated blood occurs in

1.Pulmonary artery

2.Right atrium

3.Right ventricle

4.Pulmonary vein


Question:
Peyers patches found in the small intestine are

1.Epithelial tissue

2.Glandular tissue

3.Lymphatic tissue

4.Haemopoietic tissue


Question:
pH of human urine is

1. 7.0

2.6.5

3. 6.0

4.7.5


Question:
Pleura is a layer covering

1.heart

2.kidneys

3.lungs

4.brain


Question:
Presence of RBCs in urine is

1.Uremia

2.ketonuria

3.Glucosuria

4.hematuria


Question:
Presence of __________ in urine indicates diabetes mellitus.

1.Glucose

2.Cholesterol

3.Ketone bodies

4.Both 1 and 3


Question:
RBCs, plasma and biocarbonate are the medium for transport of carbondioxide. Maximum amount of carbon dioxide is carried by

1.RBCs

2.Plasma

3.Bicarbonates

4.All RBCs and bicarbonate carried 70 per cent of carbondixide.


Question:
Reabsorption of filterate occurs in

1.renal tubules

2.glomerular apparatus

3.medullary pyramid

4.juxta cells


Question:
Rheumatic fever can cause damage

1.Alveoli of the Lungs

2. heart valves

3.heart muscles

4.pleural membranes function


Question:
Small projections of upper surface of tongue are called

1.fimbriae

2.pilli

3.papillae

4.cilia


Question:
Sweetest sugar is

1.Fructose

2.Sucrose

3.Glucose

4.Lactose


Question:
The cells lining the blood vessels belong to the category of

1.Columnar epithelium

2.Connective tissue

3.Smooth muscle tissue

4.Squamous epithelium


Question:
The function of pneumotaxic centre is

1.regulate inspiration

2.regulate rhythm

3.increase heart rate

4.All of the above


Question:
The glucose is converted into glycogen in liver and stored in

1. Liver and spleen

2.Liver and muscle

3.Liver

4.Spleen and muscles


Question:
The HCl in gastric juice converts:

1.Disaccharide to monosaccharide

2.Pepsinogen to pepsin

3.Prorennin to rennin

4.Polypeptide to peptide


Question:
The maximum volume of air contained in the lung by a full forced inhalation is called

1.Vital capacity

2.Tidal volume

3.Total lung capacity

4.Inspiratory capacity


Question:
The maximum volume of air that can be released from the lungs by forceful expiration after deepest inspiration is called the ______.

1.Total lung capacity

2.Vital capacity

3.Tidal volume

4.Ventilation rate


Question:
The muscular tubes which take the urine from the kidneys to the bladder are

1.Urinary bladders

2.Ureters

3.Urethras

4.Nephrons


Question:
The oxygen dissociation curve is shifted to the right by an increase in ______.

1. H+ concentration

2.PCO2

3.temperature

4.All of these


Question:
The pH scale is used to measure

1.Electric charge on ion

2.Speed with which ions form

3.Size of ions

4. Concentration of hydrogen ions in a solution


Question:
The principal nitrogenous excretory compound in humans is synthesised

1.In the liver but eliminated mostly through kidneys

2. In kidneys but eliminated mostly through liver

3.In kidneys as well as eliminated by kidneys

4.In liver and also eliminated by the same through bile


Question:
The renal medulla consists of cone-shaped tissue masses called _______.

1. Renal pyramid

2.Adipose capsule

3. Renal cortex

4.Renal pelvis


Question:
The yellow pigment derived from heme breakdown and excreted by kidneys is

1.Uric acid

2.Urochrome

3.Cholesterol

4.Melanin


Question:
Trachea divides into bronchi at

1.4th thoracic vertebra

2.5th thoracic vertebra

3.6th thoracic vertebra

4.7th thoracic vertebra


Question:
Typical plant growth shows _________ curve.

1.J-shaped

2.S-shaped

3.I-shaped

4.Parabolic


Question:
What happens when glomerular filteration rate falls?

1.Activation of podocytes

2. Release of renin

3.Repression of juxta glomerular cells

4.None of the above


Question:
What is the normal blood pressure of human beings?

1. 110/70

2. 120/70

3.120/80

4.110/80


Question:
What protects the moist membranes of the respiratory tract?

1. Mucus and cilia

2. A c shaped cartilage rings

3.A pebbly epidermal surface

4.An acidic glands


Question:
When body tissues are injured resulting in the loss of blood, the process of blood clot begins and the blood platelets release

1.Fibrinogen

2.Thrombin

3.Prothrombin

4.Thromboplastin


Question:
Which enzyme is used in alcoholic fermentation of yeast?

1.Maltase

2.Invertase

3.Sucrase

4.Zymase


Question:
Which growth hormone accerlates the malting process in brewing industry?

1.Auxins

2.Gibberellins

3.Ethylene

4.Cytokinins


Question:
Which of the following can be cured by hemodialysis?

1. Renal calculi

2.Glomerulonephritis

3.Uremia

4.All of these can be cured by hemodialysis


Question:
Which of the following part of human intestine hosts microorganisms?

1.Colon

2.Caecum

3.Anus

4.Rectum


Question:
Which of the following statement/statements can be related to erythroblastosis foetalis?

1. Severe anemia and jaundice to the baby.

2.Can be avoided by giving anti-Rh antibodies to mother immediately after delivery of the first child

3. Rh-antibodies from the Rh -ve mother destroys foetal RBCs

4.All of the above


Question:
Which of the following statements is true about Trachea in a respiratory system?

1.It functions as passages of air to each alveolus

2. It functions for sound production

3.It Acts as passage of air to bronchi

4. It Lowers the surface tension


Question:
Which one of the following statements in regard to the excretion by the human kidneys is correct?

1.Ascending limb of Loop of Henle is impermeable to electrolytes

2.Descending limb of Loop of Henle is impermeable to water

3.Distal convoluted tubule is incapable of reabsorbing HCO3

4.Nearly 99 percent of the glomerular filtrate is reabsorbed by the renal tubules


Question:
Which one of the followings is correct regarding larynx?

1.It prevents foreign objects from entering the trachea

2. It houses the vocal cords

3. It is an organ made of cartilage and connects the pharynx to the trachea

4.All of these are correct


Question:
Which organ is most affected by jaundice?

1.Pancreas

2.Liver

3.Stomach

4.Intestine


Question:
Which organ lies in thoracic cavity?

1. Heart

2.Lungs

3.Pancreas

4. Both 1and 2


Question:
Which part of brain causes nausea?

1. Pons

2.Hypothalamus

3.Parietal lobe

4.Medulla


Question:
Which plant growth regulator is the derivative of carotenoids?

1.Auxin

2.Gibberelic acid

3.Cytokinin

4.Abscisic acid


Question:
______ lies in front of esophagus.

1.Trachea

2.Glottis

3.Larynx

4.Epiglottis


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