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221 week 1-6
Physiology stack 1
| Question | Answer |
|---|---|
| Extrinsic control usually involves which mode of regulation? | nervous and endocrine. |
| Processes for maintaining or restoring homeostasis are known as | homeostatic control mechanisms. |
| What term describes a signal traveling toward a particular center or point of reference? | afferent |
| name the three types of control systems | positive, negative, feed-forward |
| What term describes a signal traveling away from a particular center or point of reference? | efferent |
| complex and integrated communication control system/network can be defined as? | feedback control loop |
| Positive Feedback | Enhances stimulus |
| The formation of sucrose involves the removal of a molecule of water. This is called: | dehydration synthesis. |
| Which lipid acts as a “tissue hormone”? | Prostaglandin |
| what is the name of a double-helix strand of nucleotides. | DNA |
| The alpha helix is an example of which level of protein structure? | Secondary |
| hormones, such as cortisone, estrogen, and testosterone are: | steroids |
| Proteins are polymers of | amino acids. |
| molecule composed of subunits of sugar, a nitrogen base, and a phosphate bond is a | nucleic acid. |
| “water loving” and applies to the phospholipid head? | hydrophilic |
| form of energy that cells generally use is called? | ATP |
| Water will move through the cell membrane by | osmosis. |
| First phase of mitosis, nuclear membrane disappears, freeing the chromatin, shortens into tiny bodies called chromosomes | Prophase |
| Materials can be moved from a low concentration to a high concentration through | active transport |
| Water will move through the cell membrane by: | Diffusion |
| Twenty-three chromosomes per cell in humans is referred to as: | haploid |
| water and solute move through a membrane when a hydrostatic pressure gradient exists across the membrane is the process of: | filtration. |
| An individual’s entire set of DNA can be referred to as a: | genome |
| order of the phases of mitosis is: | prophase, metaphase, anaphase, telophase. |
| The small water channels in the cell membrane are called: | aquaporins. |
| he only one that can undergo mitosis is the stratum: | basale. |
| a group of similar cells that perform a common function is called? | A tissue |
| Mucous membranes are important because they lubricate and protect passageways. T or F | TRUE |
| What structure is formed by the union of the basal and reticular lamina? | Basement membrane |
| true skin is referred to as the? | Dermis |
| Hematopoietic tissue can be found in the: | bones. |
| connects the dermis to underlying tissues is called the? | Hypodermis |
| Two hormones involved in regulating blood calcium: | parathyroid and calcitonin |
| An open fracture is also known as a? | a compound fracture. |
| In bone formation, the cells that produce the organic matrix are the: | osteoblasts |
| Hematopoiesis is carried out in the: | red bone marrow |
| The primary ossification center of a long bone is located: | at the midpoint of the diaphysis |
| Sesamoid bones are classified as: | irregular bones |
| As the activity of osteoclasts increases,: | the level of calcium in the blood increases. |
| Which of the following terms describes an isometric contraction? | Static tension |
| Most body movements are _____ contractions. | isotonic |
| The ability of muscle cells to respond to nerve stimuli is called: | irritability. |
| The substance that attracts oxygen in the myoglobin molecule is | iron. |
| Which structure functions to temporarily store calcium ions? | Sarcoplasmic reticulum |
Created by:
megarcia
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