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Kerala SSLC (Class 10) Life Processes & Human Physiology — practice questions — page 3

Explore 88 free Life Processes & Human Physiology questions in Kerala SSLC (Class 10) Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Life Processes & Human Physiology questions and exercises with answers

Showing questions 61–88 of 88.

Capillary walls are only one cell thick because theyRead the answer and worked solution →Which white blood cells engulf bacteria by phagocytosis?Read the answer and worked solution →Rh factor is named afterRead the answer and worked solution →Lymph differs from blood because lymphRead the answer and worked solution →Excretion is the process ofRead the answer and worked solution →The main nitrogenous waste in human urine isRead the answer and worked solution →Urea is produced in the human body in theRead the answer and worked solution →The main excretory organ in humans is theRead the answer and worked solution →The structural and functional unit of the kidney is theRead the answer and worked solution →The outer dark region of a kidney is called theRead the answer and worked solution →Inner lighter region of the kidney is called theRead the answer and worked solution →Urine from a kidney is carried to the urinary bladder by theRead the answer and worked solution →Urine from the urinary bladder leaves the body through theRead the answer and worked solution →Ultrafiltration in the kidney takes place in theRead the answer and worked solution →Glomerular filtrate is similar to plasma except that it has noRead the answer and worked solution →In selective reabsorption useful substances such as glucose, amino acids and water areRead the answer and worked solution →Tubular secretion is the active transfer of substances from blood into theRead the answer and worked solution →Which is the correct order of urine production?Read the answer and worked solution →Urine of a healthy person normally does NOT containRead the answer and worked solution →Approximate volume of urine produced by a healthy adult in 24 hours isRead the answer and worked solution →If a kidney fails, the body removes wastes using a process calledRead the answer and worked solution →Blood that enters the kidney through the renal artery isRead the answer and worked solution →The renal vein leaving the kidney carries blood that isRead the answer and worked solution →Skin excretesRead the answer and worked solution →Which organelle has its own DNA?Read the answer and worked solution →Endoplasmic reticulum is of how many types?Read the answer and worked solution →Plant cells differ from animal cells in possessing:Read the answer and worked solution →The fluid inside the nucleus is called:Read the answer and worked solution →

Worked practice questions

Capillary walls are only one cell thick because they

  1. Allow easy exchange of materials with tissues
  2. Must withstand the high pressure from the aorta
  3. Need to store extra blood for emergency use
  4. Must pump blood against gravity in the legs
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Correct answer: A. Allow easy exchange of materials with tissues

1. Capillaries are the smallest blood vessels. 2. Their wall is a single layer of endothelial cells. 3. This thin wall lets gases, nutrients and wastes diffuse easily. 4. So option A is correct. _Source: Selina Concise Biology Class 10, Ch 7 The Circulatory System (Mistral OCR'd PDF), section on capillaries_

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Which white blood cells engulf bacteria by phagocytosis?

  1. Erythrocytes and platelets
  2. Neutrophils and monocytes
  3. Plasma cells and lymphocytes only
  4. Endothelial cells of the heart only
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Correct answer: B. Neutrophils and monocytes

1. The chapter section on WBC types lists their roles. 2. Neutrophils and monocytes are phagocytes. 3. They engulf bacteria and cell debris. 4. Lymphocytes mostly produce antibodies. _Source: Selina Concise Biology Class 10, Ch 7 The Circulatory System (Mistral OCR'd PDF), section on WBC_

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Rh factor is named after

  1. Rhone river, near where it was discovered
  2. Robert Hooke, the cell discoverer
  3. The rhesus monkey, in which it was first found
  4. Reading hospital in England, where studied
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Correct answer: C. The rhesus monkey, in which it was first found

1. The chapter section on Rh factor gives the naming history. 2. The antigen was first found in the rhesus monkey. 3. Hence the abbreviation Rh. 4. So option A is correct. _Source: Selina Concise Biology Class 10, Ch 7 The Circulatory System (Mistral OCR'd PDF), section on Rh factor_

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