Ch.3- Cells and Tissue Test

• ____________muscle tissue has no visible striations and is found in the walls of hollow organs.

  Smooth
• In ____________, the chromosomes are aligned at the center of the spindle, midway between the centrioles, so that a straight line of chromosomes is visible.


  Metaphase
• The process whereby mRNA is made from the DNA in the nucleus is called __________. The process whereby information on mRNA is "decoded" at the ribosome in the cytoplasm is called ______________.

  Transcription; TranslationSee an expert-written answer!We have an expert-written solution to this problem!
• Which of the following is NOT a structural component of the nucleus?

  a.) Nuclear envelope

  b.) Nucleolus

  c.) Golgi apparatus

  d.) Chromatin

  Golgi apparatus
• If someone sitting at the other end of a bar is smoking, you may still breathe in some of the smoke. What process involves the movement of the smoke away from its source?

  Diffusion
• In ____________, adjacent plasma membranes fuse together tightly, like a zipper

  Tight junctions
• Group of cells that are similar in structure and function are called

  Tissues
• The tendency of water to move down its own concentration gradient is a characteristic of the process called _______________.

  Osmosis
• What are the 3 basic parts or regions of a cell?

  nucleus, cytoplasm, plasma membrane
• Which of the following represents active transport?


  Solute pumps (Sodium- Potassium pump)
• A gene segment of DNA contains the blueprint for building every _____________ in the body.

  Protein
• The four major tissue types are _________, _______, __________, and _____________.

  Epithelial, Muscular, Nervous, and Connective tissue
• Solution A has triple the salt content of a normal red blood cell that is floating in solution. The solution is _______ and the cell will _______.

  Hypertonic; shrink or crenate
• Which of the following is NOT a hallmark feature of epithelial tissues?

  Epithelial tissues are well vascularized
• The small intestine has tiny, finger-like projections of the plasma membrane that help increase the surface area and aid in absorption of nutrients known as


  Microvilli
• Sequences of 3 bases found in messenger RNA (mRNA) are called _______

  Codons