Ch. 25 Group 1: Sections 25.1-25.2 Dynamic Study Module

For each glucose molecule processed during aerobic cellular respiration, the cell gains___________

32 molecules of ATP

In the nutrient pool, which chemical is best suited for storage of energy contnent?

Fatty acids

Which part of the cell is most heavily involved in energetics?

Mitochondria

When considering the chemicals in the nutrient pool, which chemical is LEAST likely to be broken down to supply energy for the cell?

amino acids

Cells in our body are constantly building new molecules to replace worn-out structures. This process is what part of cellular metabolism?

anabolism

The process that breaks down organic substrates, releasing energy that can be used to synthesize ATP or other high-energy compounds, is ___________

catabolism

The first step in the sequence of enzymatic reactions in the tricarboxylic acid cycle is the formation of ___________

citric acid

All the chemical reactions that occur in an organism are called?

metabolism

Where in the cell does the citric acid cycle occur?

mitochondrial matrix

Metabolism refers to_________

all the anabolic and catabolic reactions in the body

Which nutrient in the nutrient pool is most often used to replace structural and functional components of the cell?

Amino acids

The flow and transformation of energy us called_____________

energetics

What happens to a glucose molecule as a result of the reactions of glycolysis?

formation of two molecule of pyruvic acid

Which process in the aerobic metabolism of glucose takes place in the cytosol?

glycolysis

which process in the metabolism of glucose does NOT require O2?

glycolysis

where in the cell does the electron chain occur?

inner mitochondrial membrane

What happens to O2 when it functions as the final electron acceptor in the electron transport chain?

it becomes part of H2O molecule

A cell with excess carbohydrates, lipids, and amino acids will break down carbohydrates in order to _________

obtain energy

In the terms of the movement of electrons, the gain of electrons is called reduction, whereas the loss of electron is called ______

oxidation

what chemical in the catabolism of glucose enters the mitochondira?

pyruvate

During the catabolism of glucose, some energy is captured by ____________ molecules, while the rest of the energy is lost mainly as ___________

reduces; heat

what is the primary role of the citric acid cycle in the production of ATP?

removal of electrons from substrates

the production of ATP provides energy to support anabolism as well as other cell functions. Which of the following is NOT supported by energy from ATP?

the diffusion of molecules across the plasma membrane

For each glucose molecule converted to two pyruvates, the anaerobic reaction sequence in glycolysis provides a net gain of _______

two ATP for the cell

All nutrients can be used by the mitochondria to provide energy. In what form are these nutrients "fed" into the mitochondria?

two carbon fragments