Determine if the phrases below are true for catabolic pathways only, anabolic pa

Question

Determine if the phrases below are true for catabolic pathways only, anabolic pathways only,or can apply to both pathways, by sorting the phrases into the three bins. Each phrase can only be used once. Items (9 items) (Drag and drop into the appropriate area below At least one enzyme is regulated All reactions are catalyzed by One or more reactions are endergonic without ATP Consumes more ATP than it Supplies NADH for oxidative Can require reducing ager Pathway produces more ATP than it consumes produces phosphorylation (ieNADPH) Metabolic pathways Catabolic only Both

Explanation / Answer

Ans. I. Catabolic pathways only: Pathway produces more ATP than it consumes

Supplies NADH for oxidative phosphorylation

# catabolic pathways, say complete oxidation of glucose, produces more ATP (32 ATP) than it consumed (2 ATP).

Oxidative phosphorylation is a catabolic process involved in breakdown of glucose or other food molecules to produce energy.

II. Anabolic pathways only: Consumes more ATP than it produces

Can require reducing agent (i.e. NADPH)

# Anabolic pathways consume more ATP than they produce because anabolism (formation of new biomolecules) require ATP for forming new chemical bonds.

NADPH is used in anabolic processes.

III. Both pathways: Atleast one enzyme is regulated

All reactions are catabolized y enzymes

One or more reactions are endergonic without ATP

# Since both the catabolism and anabolism are tightly regulated, one or more regulatory enzymes are involved in them to orchestrate the process with other cellular metabolic pathways occurring in the cells.

All catabolic and anabolic reactions are catabolized by enzymes.

Both the catabolic and anabolic processes may have one or more endergonic reactions without ATP

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