The study of tissues – Class Assignments Help
1. The study of tissues is a. cytology b. histology c. molecularbiology d. microbiology e. surface anatomy2. In a negative feedback mechanism, the response of theeffector a. reverses the original stimulus b. enhances the originalstimulus c. has no effect on the original stimulus d. is usuallydamaging to the body e. creates a cycle that leads away fromhomeostasis3. Covalent bonds form when a. atomic nuclei fuse b. moleculesbecome ionized c. neutrons are transferred from one atom to anotherd. protons are lost from atoms e. electrons are shared between twoatoms4. Reactions that use water to split molecules apart are called_______ reactions. a. dehydration b. synthesis c. hydrolysis d.reversible e. oxidation5. Proteins a. are the body’s source of immediate energy b. arethe building blocks of nucleotides c. provide much of the structureof body cells and tissues d. contain the genetic information of thecell e. insulate and cushion the body6. The plasma membrane a. separates the nucleus from the rest ofthe cell b. is a rigid protein membrane c. is not permeable d. hasa single layer of phospholipids e. regulates movement of materialsinto and out of the cell7. Channel proteins a. are binding sites for other molecules b.utilize the G protein complex to function c. are found only onendoplasmic reticulum d. allow cells to recognize one another e.provide a “door” through which extracellular molecules can enterthe cell8. Which of the following is a function of epithelial tissue? a.conduction of action potentials b. secretion and absorption ofmolecules c. support of other tissue types d. contraction e. shockabsorption9. Adipose tissue a. functions as an insulator and a site ofenergy storage b. exists in three forms: yellow, red, and brown c.contains large amounts of extracellular matrix d. is composed ofrelatively small cells e. does not contain lipids10. Skin color is the result of the a. quantity of melanin inthe skin b. number of keratinocytes in the skin c. amount of fat inthe hypodermis d. thickness of the stratum basale e. number ofmelanocytes in the skin11. What does structure “B” represent on the diagram? a. hairfollicle b. arrector pili c. dermis d. hypodermis e. sebaceousgland12. When blood calcium levels are low a. osteoclast activityincreases b. calcitonin secretion increases c. calcium absorptionis reduced d. bones produce more bone tissue e. osteoblast activityincreases
