Few statements regarding water potential of soil

a) The osmotic potential (Ys) of soil water is generally negligible because solute concentrations are low

b) In wet soils the Hydrostatic pressure (Yp) of soil water is close to zero

c) In dry soils the Hydrostatic pressure (Yp) of soil water is negligible

d) ) The osmotic potential (Ys) of soil water is generally positive because solute concentrations are low

 Which one of the following combination of above statements is TRUE?

#Question id: 176

#Unit 1. Molecules and their Interaction Relevant to Biology

A peptide has the sequence Glu–His–Trp–Ser–Gly–Leu–Arg–Pro–Gly. What is the net charge of the molecule at pH 3

#Question id: 5661

#Unit 5. Developmental Biology

Following statements regarding to the embryogenesis in A. thaliana.

A. The first zygotic division is unequal, with the basal cell larger than the apical cell. The basal cell divides to give rise to the suspensor. The apical cell divides vertically to form a two-celled proembryo, which will give rise to the rest of the embryo.

B. The top most suspensor cell is recruited into the embryo, where it is known as the hypophysis, and contributes to the embryonic root meristem and root cap.

C. The next two divisions produce an eight-cell octant-stage embryo, which develops into a heart-stage embryo of around 32 cells

D. The embryo elongates and the cotyledons start to develop as wing-like structures at one end, while an embryonic root forms at the other. This stage is known as the globular stage.

Which of the following statements are correct?

#Question id: 22969

#Unit 7. System Physiology – Animal

#Question id: 8901

#Unit 9. Diversity of Life Forms

#Question id: 10258

#Unit 1. Molecules and their Interaction Relevant to Biology