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NEET - Grade 11 - Biology - Body Fluids and Circulation - Importance and Snapshot of Body Fluids and Circulation - Study ref# 788

Introduction: You have learnt that all living cells have to be provided with nutrients,  and other essential substances. Also, the waste or harmful substances produced, have to be removed continuously for healthy functioning of tissues... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Importance and Snapshot of Body Fluids and Circulation - Study ref# 789

Following sections must be covered to understand the Body Fluids and Circulation: 1. Blood 2. Lymph (Tissue Fluid) 3. Circulation Pathways 4. Double Circulation 5. Regulation of Cardiac Activity 6. Disorders of Circulatory Sys... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Target Setup for Body Fluids and Circulation - Study ref# 790

Student requires to achieve the following milestones to get better grip over Body Fluids And Circulation. The milestones / targets are as follows:Starting Point: Days 0Test TypeAppear on TestTarget TestsScorePractice Test000%Chapter T... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4871

What is the oxidation state of iron in hemoglobin? Answer: RBCs contain hemoglobin. It has four polypeptide chains and four haem groups attached to it or 4atoms of iron in ferrous from (Fe2+), thus it can react with 4 molecules of oxygen to for... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4872

Which of the following is an Agranulocyte? Answer: Leucocytes that lack granules in their cytoplasm are known as agranulocytes. Since lymphocytes do not have granules in their cytoplasm so, they are called agranulocytes.... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4875

Study the given figure and identity the cells labeled as A, B, C and D.   Answer: A-Eosinophil, B- Monocyte, C-Neutrophil, D- Lymphocyte... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4877

Match the types of WBC listed? Answer: WBCs change their shape and are capable of amoeboid movement. This enables them to squeeze out of blood capillaries into the tissues. The process is known as diapedesis.... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4880

A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend has once offers his blood. What was the blood group of the donor? Answer: Person with blood group ‘O’ (with no antigens on RBCs) a... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4883

Clumping of RBC may occur when blood of one person is mixed with serum or blood of another person. This is due to Answer: Clumping of RBC may occur when blood of one person is mixed with serum or blood of another person. This is due to Antigen-... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4884

Blood of AB group cannot be given to B group patient because Answer: Persons with blood group B have B antigen on the surface of their RBCs and ‘A’ antibodies (against ‘A’ antigen) in their plasma. The person with ‘AB’ blood group possesses ... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4895

During the process of blood coagulation, vitamin K helps in Answer: During the process of blood coagulation, vitamin K helps in The formation of prothombin.... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4905

The given figure shows the vertical section of human heart. Identify the parts labeled as A to K. Answer: A- Aorta, B- Pulmonary artery, C- pulmonary veins, D- left auricle, E-Bundle of his, F- left ventricle, G- right ventricle, H-chordae ... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4908

Heart pumps blood more forcefully in older persons than younger ones due to Answer: As one ages, arteries lose their elasticity. Consequently the heart has to pump the blood more forcefully in order to fulfill the need of the body cells.... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4910

The given figure illustrates a section through the human heart. Which labeled part represents the site for the generation of action potential in human heart? Answer: ‘A’ is SA node that is the site for generation of action potential i... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4911

Chordae tendineae are found in Answer: Chordae tendineae are the special fibrous cords attached to the flaps of tricuspid valve on one end and on the other end with the special muscles of the ventricular wall, the papillary muscles.... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4914

A red blood cell, entering the right side of the heart passes by or through the following structures. 1.      Atrioventricular valves 2.      Semilunar valves 3.   &nb... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4915

What happens when the pacemaker becomes nonfunctional? Answer: The SA node possesses a unique property of self-excitation, which enables it to act as the pacemaker of heart. It spontaneously generates a wave of contraction which spreads over bo... read more

NEET - Grade 11 - Biology - Body Fluids and Circulation - Study ref# 4917

Rate of heartbeat is determined by Answer: The cardiac impulse originates from SA node. This impulse is of highest rhythmicity. By determining the rate of discharge of the cardiac impulse the SA node determines the rate of heartbeat.... read more

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