Accumulation of lipid molecules in brain cells lead to__________?
A. paralysis
B. oedema
C. mental retardation
D. all of these
A. paralysis
B. oedema
C. mental retardation
D. all of these
The cell wall of oomycetes is chiefly composed of___________?
A. Chitin
B. Cellulose
C. Lignin
D. Proteins
Which statement correctly describes the transcription of DNA?
A. It produces another DNA molecule
B. It produces mRNA
C. It is a semi conservation process
D. It occurs at surface of ribosomes
Rapid movement of leaves of mimosa on touching is an example of _____________?
A. Turgor movement
B. Nastic movement
C. Tropic movements.
D. Growth movement
Stomata open due to _________ of K+ into the guard cells from the surrounding epidermis
A. Diffusion
B. Active transport
C. Osmosis
D. All of these
Active transport is dependent on____________?
A. Photosynthesis
B. Respiration
C. Photophosporylation
D. None of these
A. Shape
B. Size
C. Structure
D. Fundamental organization