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Bio 205 Unit 2 Q & A
| Question | Answer |
|---|---|
| List 3 steps of Holocrine secretion | 1. Cell division replaces lost cells 2. Cells form secretory products and increase in size. 3. Cells burst releasing cytoplasmic contents. |
| The wall of the alveolus (air sac) In the lung is composed of which type of epithelium? | simple squamous epithelium |
| The proximal tubule of the nephron (kidney tubule) in the kidney is composed of which type of epithelium? | Simple cuboidal epithelium |
| The epithelium of the esophagus is composed of which type of epithelial tissue? | Stratified squamous epithelium |
| Which part of the neuron (a specialized nerve cell) receives signals from other cells and is also the main metabolic region of the neuron? | soma |
| Which of the 3 muscle types has multiple nuclei? | Skeletal |
| Which muscle cell type has visible striations but is not under voluntary control? | Cardiac |
| Which of the following are effects of aging on the body's tissues? 1. An increased risk of cancer 2. A decline in tissue repair 3. A change in tissue chemistry | All are affects of aging on body tissues |
| Which cell is present in many connective tissues that can differentiate into different types of cell? | mesenchymal |
| _____ provide strength in many directions. | Dense irregular connective tissues |
| To celebrate her 50th birthday Anna got her ear pierced and the elastic cartilage portion the piercing specialist informed her that it will take at least 6 weeks to heal this is because _____. | Cartilages avascular so healing takes longer |
| The serous membrane covering the lungs is the ______. | pleura |
| _______ muscle tissue lacks microscopic strations. | Smooth |
| Which of the following is not a property of neuroglia? A. They repair neural tissue B. They supply nutrients to neurons C. They conduct electrical impulses D. They support neural tissue | C |
| Enzymes are considered catalyst because they _____. | Lower the activation energy of a reaction |
| AB--> A+B is to decomposition as A+B -->AB is to ____. | synthesis |
| Chemical reactions that absorb energy are said to be _____. | Endergonic |
| Which of the following statements concerning enzymes is false? A. Enzymes are consumed during a reaction B. Enzymes are proteins C. Enzymes function as biological catalysts. D. Enzymes lower the activation energy of a reaction | A |
| A solution containing more hydrogen ions than hydroxide ions is ______. | Acidic |
| About 40 percent of the energy content of nutrients is captured as ATP. The remainder is lost as _____. | heat |
| Describe glycolysis | This process splits glucose in half and produces 2 ATPs for each glucose. |
| Describe ETC | Electron Transport Chain This process uses energy captured from electrons flowing to oxygen to produce most of the ATPs in cellular respiration |
| The cyanide ion released from hydrogen cyanide gas binds to cytochrome a3 and prevents the transfer of electrons to oxygen if inhaled which tissue would be affected? | cardiac muscle |
| What provides energy required to produce ATP? | H^+ ion gradient |
| Which of these is not required for glycolysis? A. glucose B. inorganic phosphate C. pyruvic acid D. ATP | C |
| Sweating produces heat loss largely by ____. | evaporative cooling |
| During the winter months populations living in cold climates show greater frequency of broken bones than populations living in warm sunny climates what might be a possible solution to this problem? | A dietary supplement of cholecalciferol |
| What is not a function Of epidermal growth ? A. Accelerating production of keratin B. Stimulating epidermal repair C. Stimulating syn activity and secretion by epithelial glands D. Promoting the division of germinative cells in the stratum lucidium | D |
| What gland secretes oil into hair folicles? | sebaceous |
| The skin can move easily over the underlying muscles because of the loose connective tissue within the _____. | hypodermis |
| Which type of tissue is the epidermis composed of? | Stratified squamous epithelium |
| What 2 layers of epidermis would be different in thick skin compared to thin Skin ? | Stratum lucidium Stratum corneum |
| Which layer of epidermis is responsible for water resistance ? | Stratum corneum |
| What is the first step in the process by which epidermal cells are replaced? | Basal cells in the stratum germinativum divide, adding in new daughter cells and pushing the cells above upward through the layers. |
| how does a cell become keratinized? | cells migrate strata s continue to divide but when they reach the stratum g They stop dividing and start producing large amounts of keratin and keratohyalin As the keratin fibers accumulate The nuclei and organelles Disintegrate and the cell dies |
| Inflammation is a normal response to an injury. What is the next step to follow inflammation during tissue repair? | migratory phase following scab clear debris cells from the stratum b migrate along edges of wound. Fibroblasts and mesenchymal cells divide producing mobile cells that invade the deeper areas of wound and endothelial cells divide to repair damaged blood |
| The epidermis receives blood contain oxygen and nutrients from where | From arteries in the connective tissue below |
| The dermal layer primarily responsible for this strength of the skin is the _____ layer. | Reticular |
| Merocrine Sweat glands are most abundant in the _______. | Forehead, palms of the hands and soles of the feet |
| The layer that contains areolar connective tissue is the ______ layer. | hypodermal |
| The skin layer just beneath the stratum basal is the ____ layer. | Papillary |
Created by:
Beckster89