Chapter 1 Midterm Questions Flashcards
What is the function of the golgi apparatus?
post translational modifications which help sort, condense, package, and deliver proteins arriving from the ER
True or False
Ribosomes are nonspecific as to what type of protein they synthesize
True
What is apoptosis?
programmed cell death, fragmentation of a cell into membrane-bound particles, which are then eliminated by phagocytosis by specialized cells
What happens to the uterine lining when preparing for the arrival of the fertilized ovum
endometrium thickens, and capillaries and glands develop to nourish the ovum
True or False
Neural olds and somites in transverse section at approximately 20 days after conception
True
What is the golgi apparatus composed of?
cisternae or saccues, small vesicles, and large vacuoles
What is a lysosome
located within the cell and acts as a scavenger
What does the mitochondria produce?
ATP (major source of adenosine triphosphate)
What is cell division?
series of steps by which the cell component divides due to need for growth, replacement of tissues.
What happens during anaphase?
The daughter chromosomes move towards the opposite poles of the cell with complement of 46 at each end. This is though to occur by movement of the chromosomal microtubules that attract chromatids toward poles and constriction and constriction appears around midbody.
What does the ovarian cycle develop into?
lower portion (endoderm) which later become the gi tract
What does the ectoderm develop into?
nervous system
True or False
The left and right atria are present until birth (foramen ovale)
True
True or False
Defects can be environmental or hereditary
True
Endoderm
The innermost layer of the three germ layers. Also forms a tube that will later become the GI tract.
