Transportation in Plants and Circulation in Animals One Mark Online

Transportation in Plants and Circulation in Animals One Mark Online Test (10th Standard Science)

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Active transport involves

A.movement of molecules from lower to higher concentration B.expenditure of energy C.it is an uphill task D.all of the above

Water which is absorbed by roots is transported to aerial parts of the plant through

A.cortex B.epidermis C.phloem D.xylem

During transpiration there is loss of

A.carbon dioxide B.oxygen C.water D.none of the above

Root hairs are

A.cortical cell B.projection of epidermal cell C.unicellular D.both b and c

Which of the following process requires energy?

A.active transport B.diffusion C.osmosis D.all of them

The wall of human heart is made of

A.Endocardium B.Epicardium C.Myocardium D.All of the above

Which is the correct sequence of blood flow

A.ventricle -> atrium -> vein -> arteries B.atrium -> ventricle -> veins -> arteries C.atrium -> ventricle -> arteries -> vein D.ventricles -> vein -> atrium -> arteries

A patient with blood group O was injured in an accident and has blood loss. Which group of blood should be used by doctor for transfusion?

A.O group B.AB group C.A or B group D.all blood group

'Heart of heart' is called

A.SA node B.AV node C.Purkinje fibres D.Bundle of His

Q10

Which one of the following shows correct composition of blood

A.Plasma - Blood + Lymphocyte B.Serum - Blood + Fibrinogen C.Lymph - Plasma + RBC + WBC D.Blood - Plasma + RBC+ WBC +Platelets

Q11

What is the process of exudation of water droplets from leaves through specialized pores called hydathodes known as?

A.Transpiration B.Guttation C.Imbibition D.Plasmolysis

Q12

In which pathway does water move through the interconnected protoplasts of plant cells via plasmodesmata?

A.Apoplastic pathway B.Symplastic pathway C.Vascular pathway D.Cuticular pathway

Q13

What is the main form of carbohydrate transported through phloem tissue from source to sink in plants?

A.Glucose B.Starch C.Sucrose D.Fructose

Q14

Why do mature mammalian red blood cells lack a nucleus and mitochondria?

A.To increase space for hemoglobin and prevent internal oxygen consumption B.To allow rapid cell division in circulating blood C.To facilitate synthesis of plasma proteins D.To store excess glycogen for energy requirements

Q15

Which type of white blood cells are the largest in size and exhibit active phagocytic action?

A.Basophils B.Eosinophils C.Monocytes D.Lymphocytes

Q16

Which heart valve prevents the backflow of blood from the left ventricle into the left atrium during ventricular contraction?

A.Tricuspid valve B.Bicuspid valve C.Pulmonary semilunar valve D.Aortic semilunar valve

Q17

In which year and by whom was the Rh factor first discovered in the Rhesus monkey?

A.Karl Landsteiner and Alexander Wiener in 1940 B.William Harvey in 1628 C.Stephen Hales in 1733 D.Alexander Fleming in 1928

Q18

The first heart sound 'Lubb' is produced by which cardiac event?

A.Opening of the aortic and pulmonary valves B.Closure of the tricuspid and bicuspid valves C.Closure of the semilunar valves D.Rapid flow of blood into the ventricles

Q19

Which blood vessel carries oxygenated blood from the lungs back to the left atrium of the human heart?

A.Superior vena cava B.Pulmonary artery C.Pulmonary vein D.Renal artery

Q20

How does the composition of lymph differ primarily from that of blood plasma?

A.Lymph contains more RBCs and fewer WBCs than plasma B.Lymph contains no red blood cells and fewer proteins than plasma C.Lymph contains a higher concentration of blood platelets D.Lymph is a dark red viscous fluid containing fibrinogen only

Q21

What type of impulse originates natively in the sinoatrial (SA) node to initiate cardiac contraction?

A.Myogenic impulse B.Neurogenic impulse C.Hormonal surge D.Mechanical vibration

Q22

Why is a person with AB blood group considered a universal recipient?

A.Their RBCs carry no surface antigens A or B B.Their blood plasma lacks both anti-A and anti-B antibodies C.Their blood contains high levels of Rh antibodies D.Their blood plasma contains both anti-A and anti-B antibodies

Q23

Which instrument is used by medical professionals to measure clinical arterial blood pressure?

A.Stethoscope B.Sphygmomanometer C.Electrocardiograph D.Haemocytometer

Q24

What property describes the mutual attraction between water molecules that helps maintain a continuous water column in xylem vessels?

A.Adhesion B.Cohesion C.Imbibition D.Plasmolysis

Q25

An increase in the count of which type of leucocytes occurs during allergic conditions and parasitic infections?

A.Basophils B.Neutrophils C.Eosinophils D.Monocytes

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About this Transportation in Plants and Circulation in Animals test

This free online practice test covers Transportation in Plants and Circulation in Animals from the 10th Standard Science (Samacheer Kalvi) syllabus. Choose the number of questions and an optional time limit, then answer and submit — everything is checked in your browser, with the correct answers and a worked explanation shown at the end. For the full solutions to every question in this set, see the solved MCQs page.

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