Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?
Hydrilla
Yucca
Viola
Banana
B.
Yucca
Yucca has an obligate mutualism with a species of moth i.e. pronuba. In Obligate mutualism, one organism cannot survive without other.
Which of the following elements is responsible for maintaining turgor in cells?
Magnesium
Sodium
Calcium
Potassium
Match the items given in Column I with those in Column II and select the correct option given below:
| Column I | Column II | ||
| Function | Part of the Excretory system | ||
| a | Ultrafiltration | i | Henle's loop |
| b | Concentration of urine | ii | Ureter |
| c | Transport of urine | iii | Urinary bladder |
| d | Storage of urine | iv | Malpighian corpuscle |
| v | Proximal convoluted tubule | ||
| a | b | c | d |
| iv | v | ii | iii |
| a | b | c | d |
| iv | i | ii | iii |
| a | b | c | d |
| v | iv | i | iii |
| a | b | c | d |
| v | iv | i | ii |
The Golgi complex participates in
Fatty acid breakdown
Formation of secretory vesicles
Activation of amino acid
Respiration in bacteria
In which of the following forms is iron absorbed by plants?
Ferric
Ferrous
Both ferric and ferrous
Free element
What is the role of NAD+ in cellular respiration?
It functions as an enzyme.
It functions as an electron carrier.
It is the final electron acceptor for anaerobic respiration.
It is a nucleotide source for ATP synthesis.
Match the items given in Column I with those in Column II and select the correct option given below
| Column I | Column II | ||
| a | Glycosuria | i | Accumulation of uric acid in joints |
| b | Gout | ii | Mass of crystallised salts within the kidney |
| c | Renal calculi | iii | Inflammation in glomeruli |
| d | Glomerular nephritis | iv | Presence of in glucose urine |
| a | b | c | d |
| iii | ii | iv | i |
| a | b | c | d |
| i | ii | iii | iv |
| a | b | c | d |
| iv | i | ii | iii |
| a | b | c | d |
| ii | iii | i | iv |
