Excretion In Plants And Animals Flashcards
What is Metabolism
Metabolism refers to the whole sum of reactions that occur throughout the body within each cell and that provide the body with energy. This energy gets used for vital processes and the synthesis of new organic material.
What is Anabolism
Anabolism is a biochemical process in metabolism where the simple molecules combine to generate complex molecules. This process is endergonic, which means it is not spontaneous and requires energy to progress the anabolic reaction.
What is catabolism
Catabolism is the part of the metabolic process that breaks down large, complicated molecules into smaller ones in order to produce energy. The energy is released as a result of the destructive branch of metabolism.
What is excretion
Excretion is the removal of metabolic waste products from the body of an organism
What is the major way through which the body maintains Homeostasis.
Through excretion
Homeostasis is defined asa self-regulating process by which an organism can maintain internal stability while adjusting to changing external conditions.
What are the major excretory products in plants
Carbon dioxide, excess water produced during respiration and nitrogenous compounds produced during protein metabolism are the major excretory products in plants.
The functional unit of the kidney is..
The Nephrons
The artery that passes blood to the kidney is called
Renal Artery
The total number of Orifices for outgoing and incoming of urine through the bladder is
3
What happens if the proximal convoluted tubule is removed from the nephron?
Urine is more diluted
Which pressure facilitates filtration while urine is being formed
Filtrate hydrostatic pressure
Kidney in the human body extends from what level to what level
12th thoracic vertebrae to 3rd lumbar vertabrae
What are the substances that can pass through the glomerulus
Any small molecules such as water, glucose, salt (NaCl), amino acids, and urea pass freely into Bowman’s space, but cells, platelets and large proteins, globins, albumin do not.
The white thick fluid that comes from plant as waste product is called
Latex
Resins are another group of wastes found in
Stems of conifers
Aquatic plants lose most of their metabolic wastes byyy
Direct diffusion into the surrounding water
The gaseous waste materials produced during respiration(carbon dioxide) and photosynthesis (oxygen) diffuse out through
Stomata in leaves and through lenticels in other parts of the plants.
The only major gaseous excretory product in plants is….
Oxygen
What is the function of the lungs?
It helps in getting rid of carbon dioxide, formed as a result of cellular respiration, through exhalation.
The human excretory system comprises……..
Kidneys, blood vessels(blood vessels tha join them),ureters, urinary bladder and urethra.
Urine leaves each kidney through a tube called…….
What carries urine from the kidney to the urinary bladder
Ureters
The kidney consists of 2 distinct regions, namely
The outer dark- Granular cortex
The inner- medulla
The tubule of the nephron is differentiated into
Proximal convoluted tubule
Henle’s loop
Distal convoluted tubule
Bowman’s capsule is a double-walled cup like structure that surrounds the dense network of blood carplillaries called
Glomerulus
The glomerular filtrate contain what
Water, glucose, salts, urea, vitamins
The Mineral which is essential for absorption and maintaining balance if body fluid is
Sodium
The hair pin-like structure, which is part of the nephron is called
Loop of Henle
The correct path of urine in our body is
Kidney- Ureter- Urinary bladder- Urethra
The major excretory products of humans is
Urea
Which is the largest exocrine gland in the body?
The liver
The presence of yellow colour in the urine indicates
Urobilin or Urochrome
What is responsible for the purification of blood?
The kidney
What part of the kidney is responsible for blood pressure-driven filtration
Glomerulus
What is the role of ADH in kidney function
It controls the amount of water absorption by the nephrons.
