T F 1. Cells grow in size in proportion to the size of an organism. TF 2. One-celled organisms carry on all of the basic life activities of many- celled organisms. T F 3. Groups of organs work together in a structure called a tissue. TF 4. Both plants and animals have tissues and organs. T F 5. Each kind of cell has its own structure and performs a special func- tion for an organism.

SCIENC Final Tes 33. Tissue engineering is the ability to grow cells in a laboratory. These cells are collected from an animal, a donor organ, or a patient's body and grown in liquid nutrients that allow them to divide and Last Updated 5 October 2021 multiply. This science explores the possibility of replacing or repairing human body parts. How is the term engineering as used in this process applied? By the use of: A. science and mathematics to produce a material B. biology, medicine, and engineering to produce a material C. mathematics and engineering to produce a material D. history, mathematics, and biology to odeirlis neproduce a material nva toe al evel E. chemistry, mathematics, and la en engineering to produce a material. vsia bne

5. Select two fabrication techniques used to make porous biomaterials for tissue engineering. Provide 2 pros and 2 cons for each technique, directly comparing the two techniques you have chosen.

Pick the two main reasons cells might undergo apoptosis 'A cell is stopped at a checkpoint, but the problems/defects cannot be fixed   'A cell needs to differentiate into a different type of cell The cell died   'Some of a cell’s proteins became glycosylated   'Some of a cell’s proteins developed disulfide bonds   'Cells that are not needed in the adult body must be removed

Place the list of structures in order from most complex to simplest

Section 1- Question 14 The separation of cells and cellular components is accomplished with a centrifuge. A sample of cells is first blended to mechanically break apart some of the cells releasing their contents to form a cell homogenate. The remaining whole cells and cell components are separated based on their sedimentation rate by centrifuging the sample at increasingly high speed. The centrifuge spins at up to several thousand rotations per minute (rpm) forcing material to accumulate as a pellet at the bottom of the tube. The liquid portion is removed and centrifuged again to yield four (4) pellets containing the cells or cell components listed in the diagram. Cell homogenate Patient Patient 1 Patient 2 Patient 3 Low speed Patient 4 Medium speed .. High speed .. - ☐☐☐☐ Pellet 1 Whole cells Nuclei Cytoskeletons The separation of whole cells is required for the diagnosis and treatment of certain disease processes in humans. Four patients each exhibiting unique symptoms are shown in…