A student wrote these statements about polysaccharides. 1 Amylose is formed from condensation reactions between β-glucose monomers. 2 Branches in amylopectin molecules form between carbon atoms 1 and 4 on α-glucose molecules. 3 In unbranched β-glucose chains, each monomer is rotated 180° relative to its adjacent monomer. Which of these statements are correct?

When hydrolysed, which molecules have products containing a carboxyl group? 1 phospholipids 2 polysaccharides 3 proteins

Four solutions were tested with Benedict's solution. The table shows the colour of the solutions after testing. [Tabl…

Which feature of glycogen distinguishes glycogen from starch?

Which terms describe the method by which water is transported within xylem vessel elements? 1 mass flow 2 cohesion-te…

Which combination of features is characteristic of a phloem sieve tube element as it is loaded from a source?

Which properties of lignin are important for the function of xylem vessels in the stem of a tall plant, such as a tre…