Course intro
______ is not found in the plasma membrane.
DNA
nucleosome
DNA double helix wound around a cluster of histones
Which statements correctly describe the nuclear envelope?
It contains phospholipids. It controls the entry of substances into and out of the nucleus. It is a double membrane. It is continuous with the ER.
______ examines the function of various organ systems.
Physiology
Transcription is the formation of
RNA
Transcription is the formation of ______.
RNA
Visualizing the body in the ____ position is significant because all observers have a common point of reference when describing and discussing its regions.
anatomic
Which term describes the relationship of the stomach to the spinal cord?
anterior
In the anatomic position, the palms face ______.
anteriorly
At the chemical level, ______ are the smallest units of matter.
atoms
Rank the following terms from simplest to most complex. Remember to start with the most SIMPLE structure first. Position 1 of 5 atoms correct toggle button unavailable atoms
atoms, molecules, macromolecules, organelles, cells
Rank the following terms from simplest to most complex.
cells, tissues, organs, organ systems, organism
anaphase
centromeres, that hold sister chromatid pairs, separate centromeres, that hold sister chromatid pairs, separate
Which is more loosely coiled?
chromatin
telophase
chromosomes arrive at poles
Which function to move mucus?
cilia
Superior means ______.
closer to the head
The term medial means ______.
closer to the midline of the body
In the cell cycle, division of the cytoplasm is called ______. Multiple choice question.
cytokinesis
The general term for all cellular contents between the plasma membrane and the nucleus is the
cytoplasm
What is a general term for all cellular contents between the plasma membrane and the nucleus?
cytoplasm
physiology
describes the mechanisms by which different nutrients are broken down
anatomy
describes the muscle layers in the wall of the small intestine
The term that means toward the back is ______.
dorsal
physiology
examines how the muscles of the small intestine propel food through the digestive tract
True or false: The nose is lateral to the eyes.
false
chromosomes
finely filamented mass of DNA and protein
Anterior means toward the ______ surface.
front
Physiology is the study of ______ of body parts.
function
The growth phase of the cell cycle is ______.
interphase
The two phases of the cell cycle are
interphase and mitotic phase
DNA is considered the "boss" of the cell because ______.
it directs the synthesis of proteins that carry out body functions
Nuclear pores allow for the passage of
macromolecules and ions
Nuclear pores allow for the passage of ______.
macromolecules and ions
The correct anatomic directional term meaning "toward the midline of the body" is ______.
medial
metaphase
microtubules from mitotic spindle attach to centromeres
The cell division that takes place in somatic cells is called
mitosis
prophase
nucleolus disappears
Mitosis is division of the ______.
nucleus
The largest structure within a cell is usually the ______.
nucleus
The organelle in which transcription takes place is the
nucleus
The organelle that is the cell's control center is the
nucleus
The term superficial means ______ of the body.
outside of the outside
The cell membrane is also called the ___ membrane
plasma
______ is the anatomic directional term, which means "closest to the point of attachment to the trunk."
proximal
Which is not a type of membrane-bound organelle?
ribosome
Mitosis occurs in ______ cells.
somatic
anatomy
studies the small intestine including its relationship to the rest of the body
The correct anatomic directional term for "closer to the head" is ______.
superior
The process by which a DNA gene is copied into RNA is called ______. Multiple choice question.
transcription
True or false: Cilia and flagella are projections that extend from the surface of some cells.
true
True or false: Physiology focuses on the molecular or cellular level to gain an understanding of how organ systems work.
true
______ is not a nitrogenous base found in DNA nucleotides.
uracil
The term posterior means toward the ______ surface.
back
chromatin
become visible only when the cell is dividing
In cell division, one cell divides to produce two identical cells. These new cells are called ___ cells
daughter cells
______ is the anatomic directional term that means "on the inside" or "underneath another structure."
deep
Which cell type contains no nucleus?
erythrocyte
The process in which a mRNA copy of a gene is read by ribosomes in the cytoplasm to produce a protein is called
translation
The process that occurs on ribosomes by which a mRNA transcript is read and a new protein produced is called
translation
The synthesis of a new protein from an mRNA transcript is called ______.
translation
Which plane divides the body into superior and inferior portions?
transverse plane