Companion cells transport of photosynthetic products from producing cells in mature leaves to the sieve elements in the minor veins of the leaf. There are at least three different types of companion cells in the minor veins of mature, exporting leaves, All three cell types have dense cytoplasm and abundant mitochondria;

#Question id: 850

#Unit 1. Structure and Function of Biomolecules

The experimental inverse of protein structure prediction, has provided insights into protein folding and stability. Protein design attempts to construct an amino acid sequence that will form a structure such as a sandwich of β sheets or a bundle of α helices;

#Question id: 851

#Unit 1. Structure and Function of Biomolecules

Methods is the Rosetta program, formulated by David Baker. To satisfy the program’s computational needs, a volunteer network of ∼100,000 computers, known as Rosetta@home, provides the 500,000 or so hours of processing time required to generate a structure;

#Question id: 852

#Unit 1. Structure and Function of Biomolecules

.________ enzyme revealed the relation between the amino acid sequence of a protein and its conformation.

#Question id: 853

#Unit 1. Structure and Function of Biomolecules

In the presence of a large excess of _______ the disulfides (cystines) are fully converted into sulfhydryls (cysteines).

#Question id: 854

#Unit 1. Structure and Function of Biomolecules

Many conditions including type 2 diabetes, Alzheimer  disease, Huntington disease and parkinson disease are associated with the misfolding mechanism a soluble protein that is normally secreted from the cell is secreted in the missfold state and converted into an insoluble extracellular fibre the diseases are correctly referred to as

#Question id: 855

#Unit 1. Structure and Function of Biomolecules

Which of the following interactions make a large contribution to the stability of protein structures