site of robosome production
finger-like projections that increase surface area for absorbtion
controls the entry and exit of substances thru the cell
cholesterol synthesis, fat metabolism and detoxification
transcription occurs here.....
tiny structures that carries out protein synthesis
hair-like structure that sweep particles away
small spherical structures that transport proteins from one part of the cell to another
genetic material is stored here
detoxifies free radicals and removes hydrogen peroxide
T or F: sample diffusion requires the input ot energy from ATP hyrdolysis
T or F: Osmosis is the movement of solutes from a region of lower concentration of solute to a region of higher concentration of solute
T or F: In exocytosis, there is movement of substances outside the cell
T or F; Pfinocytosis or "cell drinking" is a form of endocytosis
T or F: DNA replication occurs during metaphase of mitosis
T or F: during prophase, the daughter chromosomes are pulled towards the poles
T or F: blood is a type of connective tissue
T or F: an endocrine gland differs from an exocrine gland in that the endocrine gland is ductless
T or F: A ligament attatches a bone to muscle
T or F: elastic cartilage can be found in the external ear
what is an example of a connective tissue?
it is the only kind of RNA
what describes tRNA
a gene undergoes____to produce its corresponding mRNA
3 bases that code for a specific amino acid
an amino acid condon sequence of____
the process of converting the info from mRNA to protein is nown as
in human cells that produce large amounts of hormones or enzymes, we would expect to see a large number of....
mRNA stands for ____RNA
linning of bladder
in what location is stratified epithelium found?
alveolar walls or skin
in what locations are squamous epithelium found?
water moves out of the cell by osmosis
human cells in culture are placed in a relatively concentrated salt solution. What is likely to occur?
DNA replication occurs
one new strand and one old strand
after DNA is being replicated, the new DNA molecule is mad up of.....
adenine base-pairs with thymine
the base-pairing rule states that....
what correctly describes the flow of genetic info in the cell
the heart is primarily made up of....
they are invouluntary muscles
what correctly describes smooth muscle tissue?
sodium ions move into a nerve cell via protein channel fown a concentration gradient. this is an example of
the fluid that bathes all cells and allows exhange of gases and nutrients is called....
what is NOT required during translation
interaphase--> prophase--> metaphase-->anaphase-->telophase
the correct order of the various stages of cell divison
during___chromsomes clusrer and become alligned at the center part of the cell
during___thecentomeres split and chromatids move to opposite poles of the cell
cardiac muscle can easily be distinguished from skeletal muscle under the microscope in that cardiac muscle has
what is a structue that is made up of cartilage
what is NOT an example of connective tissue
in bone the bone cells are located in the ____and the bulk of the bone is the____
a tissue that usually occurs in continuous sheets and has a basement membrane is the