Transportation in Plants and Circulation in Animals Additional One

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

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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

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

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

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

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

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

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

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

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

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

Q10

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

Q11

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

Q12

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

Q13

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

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

Q14

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

Q15

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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