Does the degradation of ingested starch to form glucose (that can enter glycolysis) require an input of energy

Explanation:

Glycolysis is the process of breaking down glucose molecule pyruvate molecules, and the energy released from the process are stored as ATP and NADH.

Glycolysis pathway produces energy that is required in for cell metabolic activity. 2 ATP is used up in the glycoysis pathway and 4 ATP is produced and 2 NADPH as output used as source of energy.

Nearly all organisms that break down glucose uses glycolysis. In some organisms, glycolysis is the only method used to produce energy.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.