Options:
- A. Proximal convoluted tubule
- B. Descending limb of loop of Henle
- C. Ascending limb of loop of Henle
- D. Collecting tubules
View Answer
D. Collecting tubules
Biology
Which adaptation is acquired by plants of cooler areas to prevent lipid crystal formation in cell membrane?
Options:
- A. Change in membrane protein composition.
- B. Change in the solute composition of the cell membrane which prevents crystallization.
- C. Increase in proportion of unsaturated fatty acids.
- D. Development of heat shock proteins.
View Answer
C. Increase in proportion of unsaturated fatty acids.
The nephridia of earthworm open into the coelom by_________?
Options:
- A. Nephrostome
- B. Nephridiopore
- C. Flame cell
- D. Anus
View Answer
A. Nephrostome
Which organisms are sometimes called the
Options:
- A. Diatoms
- B. Radiolarians
- C. Dinoflagellates
- D. Foraminiferans
View Answer
A. Diatoms
Locomotion in diatoms is carried out with the help of__________?
Options:
- A. Valve
- B. Raphe
- C. Pseudopodium
- D. Cilia or flagella
View Answer
B. Raphe
Which of the following is a selectively permeable membrane?
Options:
- A. cell wall
- B. cytoplasm
- C. cell membrane
- D. none of these
View Answer
C. cell membrane
Shrinkage of protoplast due to exosmosis of water is__________?
Options:
- A. imbibition
- B. plasmolysis
- C. deplasmolysis
- D. adhesion
View Answer
B. plasmolysis
The plants which produce embryo but lack vascular tissues and seeds are placed in_________?
Options:
- A. bryophytes
- B. pteridophytes
- C. tracheophytes
- D. all of these
View Answer
A. bryophytes
Accumulation of lipid molecules in brain cells lead to____________?
Options:
- A. paralysis
- B. oedema
- C. mental retardation
- D. all of these
View Answer
C. mental retardation
Which of the following
Options:
- A. Musturd
- B. Paddy
- C. Ground nut
- D. None of these
View Answer
C. Ground nut