a&p
Electrons
are the subatomic particles most involved in bonding behavior of atoms.
What kind of RNA has the function of bringing amino acids to the ribosome during translation?
tRNA
The four main types of tissues are
epithelial, connective, muscle, nervous
A symporter will transport _________ across the plasma membrane.
two different ions or molecules in the same direction
carrier proteins
Alba move bound ions or molecules from one side of the membrane to the other
a proton donor
An acid
Which of the following statements concerning connective tissue is true?
Collagen fibers provide strength to dense connective tissue.
Which tissue type forms glands?
Epithelial
Differentiation means all cells of an organism contain and express the same DNA.
False
Which type of tissue is contractile?
Muscle tissue
Which of the following correctly matches a nuclear structure with Its function?
Nuclear pores = allow molecules to, move between the nucleus and cytoplasm
Which of the following is a function of epithelial tissue?
Secretion and absorption of molecules
Which of the following is not a characteristic of homeostatic variables?
They always remain at a fixed value.
During gene expression, is the process of making an RNA copy of a portion of the DNA, and process of directing the synthesis of a protein based off the sequence of the RNA. is the?
Transcription:translation
An organ is
a structure composed of several tissue types
Receptor proteins are
attach to ligand molecules
Which type of membrane protein forms a passageway through the plasma membrane?
channel protein
Which of the following structures is likely to consist of dense irregular collagenous connective tissue collagenous
dermis of the skin
Epithelial tissue that can stretch or is subjected to stress would have
desmosomes
When ionic compounds dissolve in water, their ions
dissociate or separate from one another.
Chemical substances that dissolve in water or react with water to release ions are known as
electrolytes
In ionic bonding
electrons are transferred from one atom to another.
The change in size of the bone marrow (where blood cells are produced) as an infant matures is an example of _________, whereas the transformation of blood stem cells into white blood cells is an example of _________.
growth; differentiation
Molecules that serve as chemical signals to open or close gated ion channels are
ligands
The extracellular material of tissues is called
matrix
During exercise, one generates excess heat and the body temperature rises. As a response, blood vessels dilate in the skin, warm blood flows closer to the body surface, and heat is lost. This is an example of _________.
negative feedback
The plasma membrane
regulates movement of materials into and out of the cell.
Anatomy is
study of structure
Epithelial tissue is characterized as?
tightly packed cells
When a sperm cell comes into contact with an egg cell, there is a change in the electrical charge across the plasma membrane and various channel proteins close. These channels would be called _________channels.
voltage-gated
