Biology

Anatomy
Deals with the structure of the body and its parts
What stage does cells spend most of its time in?
Interphase
Chromatin
Complexed protein that is condensed to form chromosomes
Chromatid
Half of a replicated chromosome
Chromosomes
Structure built of DNA
What structure holds the individual chromatids together
Centromeres
Which stage does the nuclear membrane disappear? Which stage does it reappear?
Prophase and telophase
What makes up the spindle fibres and what are their function?
Protein and it separates the chromatids to form new daughter cells
How many chromosomes do humans have?
46
What star like structure radiates from each centriole during metaphase?
Aster
What is cytokinesis?
Division of the cytoplasm during cell division
What stage does cytokinesis begin?
Telophase
Name an example of a cell in an adult human that does not undergo mitosis
Spermatocytes
DNA replications is the longest stage cells spend time in.
Interphase
The DNA replicates itself, aligns in the centre of the cell, holder by spindle fibres, then separates into two daughter cells.
Mitosis
The process of mitosis is over and the cell has divided into two daughter cells with similar DNA
Cytokinesis
Physiology
Studies the functions of body parts and how they work
What are the smallest unit of chemical?
Atoms
What consists of two or more atoms?
Molecules
What are large and biologically important molecules inside cells?
Macromolecules
What are aggregates of macromolecules that are used to carry out a specific function in the cell?
Organelles
What are the basic unit of structure and function for living things?
Cells
What are group of cells functioning together?
Tissue
What are groups of tissues with specialized functions?
Organs
What is a group of organs that function together called?
Organ systems
Organ systems functioning together make up what?
Organism
What is respiration?
Use of oxygen and removal of CO2 to release energy from food
What is absorption?
Movement of substances through membranes and into fluids
What is circulation?
Movement within body fluids
What is assimilation?
Changing nutrients into chemically different forms
What is excretion?
Removal of metabolic wastes
Water, food, oxygen, heat, pressure
Living organisms require these environmental factors
Maintenance of a stable internal environment is called?
Homeostasis
Homestasis is regulated through which control systems?
Receptors, set point and effectors
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