Q. Which of the following elements is likely to form the least polar covalent bond with hydrogen?

View solution

Q. The mitochondria were known in the nineteenth century to be osmotically active on the basis of evidence that

View solution

Q. Mitochondria can be expected most numerous in

View solution

Q. Why do some redox reactions in cells result in the transfer of electrons from a reductant with a higher standard redox potential to an oxidant with a lower standard redox potential?

View solution

Q. Lysosomes are associated with

View solution

Q. Which cell type is likely to have the most mitochondria?

View solution

Q. Tonoplast is a membrane around

View solution

Q. A cell without cell wall is called

View solution

Q. Chemical energy is supplied to eukaryotic cells by

View solution

Q. Which part of a plant contains the male sex cell?

View solution

Q. A widely accepted explanation for transport of sugar in phloem is called

View solution

Q. Phloem is composed of

View solution

Q. The movement of most minerals, including potassium into root cells is by

View solution

Q. The evaporation of water from leaves is called

View solution

Q. Normally CO2 and O2 enter a plant by

View solution

Q. The cohesion-tension theory of water movement helps to explain how water moves from soil into root?

View solution

Q. When guard cells swell

View solution

Q. Water moves into roots of plants by

View solution

Q. Organogenesis is

View solution

Q. Which of the following is used in the culture of regenerating protoplasts, single cells or very dilute cell suspensions?

View solution