Question 1

In the cell, oxidation of fuel molecules involves

Accepted Answer

A)  the removal of electrons in a step-wise process. 
B)  oxidation of electron carrier molecules. 
C)  the direct reaction of fuel molecules with oxygen. 
D)  the addition of electrons in a step-wise process. 
E)  the compulsory gain or loss of protons in accordance with the gain or loss of electrons. 
A)  the removal of electrons in a step-wise process. 
B)  oxidation of electron carrier molecules. 
C)  the direct reaction of fuel molecules with oxygen. 
D)  the addition of electrons in a step-wise process. 
E)  the compulsory gain or loss of protons in accordance with the gain or loss of electrons.

Question 2

Allosteric mechanisms regulate enzyme activity by

Accepted Answer

A)  adding a phosphate group to an amino acid in the enzyme. 
B)  changing the 3-D shape of the enzyme. 
C)  binding organic molecules to the active site of the enzyme. 
D)  changing the amino acid composition at the active site. 
E)  changing the concentration of the enzyme. 
A)  adding a phosphate group to an amino acid in the enzyme. 
B)  changing the 3-D shape of the enzyme. 
C)  binding organic molecules to the active site of the enzyme. 
D)  changing the amino acid composition at the active site. 
E)  changing the concentration of the enzyme.

Question 3

In biological systems, energy can be stored as

Accepted Answer

A)  potential energy. 
B)  kinetic energy. 
C)  heat. 
D)  mechanical energy. 
E)  All of the answers are correct. 
A)  potential energy. 
B)  kinetic energy. 
C)  heat. 
D)  mechanical energy. 
E)  All of the answers are correct.

Exam 3: The Chemistry of Life

In the cell, oxidation of fuel molecules involves

Allosteric mechanisms regulate enzyme activity by

In biological systems, energy can be stored as

Nature of Molecules

Biomolecules

Functioning Cells

Movement Across Membranes

Harvesting Energy

Cells, Tissues and Signals

Cell Division

Inheritance

Genes, Chromosomes and Dna

The Genetic Code

Gene Expression

Genomes, Mutation and Cancer

Viruses

Genetic Engineering and Biotechnology

Reproduction, Growth and Development of Flowering Plants

Structure of Plants

Plant Nutrition, Transport and Adaptation to Stress

Plant Hormones and Growth Responses

Animal Reproduction

Animal Development

Homeostasis: Water, Solutes and Excretion

Gas Exchange in Animals

Circulation

Metabolism, Temperature Regulation and Environmental Stress

Animal and Human Nutrition

Innate Defences and the Immune System

Hormonal Control in Animals

Nervous Systems

Animal Movement

Animal Behaviour

Evolving Life

Evolving Earth

Mechanisms of Evolution

Bacteria

The Protists

Plants

Fungi

Simple Animals: Sponges to Flatworms

Annelids, Molluscs, Nematodes and Arthropods

Echinoderms and Chordates

Australian Biota

Population Ecology

Living in Communities

Ecosystems

Human Impacts

Filters