Excretion In Plants And Animals

Question 1

What is Metabolism

Answer 1

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.

Question 2

What is Anabolism

Answer 2

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.

Question 3

What is catabolism

Answer 3

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.

Question 4

What is excretion

Answer 4

Excretion is the removal of metabolic waste products from the body of an organism

Question 5

What is the major way through which the body maintains Homeostasis.

Answer 5

Through excretion
Homeostasis is defined asa self-regulating process by which an organism can maintain internal stability while adjusting to changing external conditions.

Question 6

What are the major excretory products in plants

Answer 6

Carbon dioxide, excess water produced during respiration and nitrogenous compounds produced during protein metabolism are the major excretory products in plants.

Question 7

The functional unit of the kidney is..

Answer 7

The Nephrons

Question 8

The artery that passes blood to the kidney is called

Answer 8

Renal Artery

Question 9

The total number of Orifices for outgoing and incoming of urine through the bladder is

Answer 9

3

Question 10

What happens if the proximal convoluted tubule is removed from the nephron?

Answer 10

Urine is more diluted

Question 11

Which pressure facilitates filtration while urine is being formed

Answer 11

Filtrate hydrostatic pressure

Question 12

Kidney in the human body extends from what level to what level

Answer 12

12th thoracic vertebrae to 3rd lumbar vertabrae

Question 13

What are the substances that can pass through the glomerulus

Answer 13

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.

Question 14

The white thick fluid that comes from plant as waste product is called

Answer 14

Latex

Question 15

Resins are another group of wastes found in

Answer 15

Stems of conifers

Question 16

Aquatic plants lose most of their metabolic wastes byyy

Answer 16

Direct diffusion into the surrounding water

Question 17

The gaseous waste materials produced during respiration(carbon dioxide) and photosynthesis (oxygen) diffuse out through

Answer 17

Stomata in leaves and through lenticels in other parts of the plants.

Question 18

The only major gaseous excretory product in plants is….

Answer 18

Oxygen

Question 19

What is the function of the lungs?

Answer 19

It helps in getting rid of carbon dioxide, formed as a result of cellular respiration, through exhalation.

Question 20

The human excretory system comprises……..

Answer 20

Kidneys, blood vessels(blood vessels tha join them),ureters, urinary bladder and urethra.

Question 21

Urine leaves each kidney through a tube called…….
What carries urine from the kidney to the urinary bladder

Answer 21

Ureters

Question 22

The kidney consists of 2 distinct regions, namely

Answer 22

The outer dark- Granular cortex
The inner- medulla

Question 23

The tubule of the nephron is differentiated into

Answer 23

Proximal convoluted tubule
Henle’s loop
Distal convoluted tubule

Question 24

Bowman’s capsule is a double-walled cup like structure that surrounds the dense network of blood carplillaries called

Answer 24

Glomerulus

Question 25

The glomerular filtrate contain what

Answer 25

Water, glucose, salts, urea, vitamins

Question 26

The Mineral which is essential for absorption and maintaining balance if body fluid is

Answer 26

Sodium

Question 27

The hair pin-like structure, which is part of the nephron is called

Answer 27

Loop of Henle

Question 28

The correct path of urine in our body is

Answer 28

Kidney- Ureter- Urinary bladder- Urethra

Question 29

The major excretory products of humans is

Answer 29

Urea

Question 30

Which is the largest exocrine gland in the body?

Answer 30

The liver

Question 31

The presence of yellow colour in the urine indicates

Answer 31

Urobilin or Urochrome

Question 32

What is responsible for the purification of blood?

Answer 32

The kidney

Question 33

What part of the kidney is responsible for blood pressure-driven filtration

Answer 33

Glomerulus

Question 34

What is the role of ADH in kidney function

Answer 34

It controls the amount of water absorption by the nephrons.