Once entry into the cell is achieved some of these hormones bind with specific

Once entry into the cell is achieved some of these

This preview shows page 58 - 63 out of 189 pages.

Once entry into the cell is achieved, some of these hormones bind with specific receptor proteins in the cytoplasm and then can move as a hormone-receptor complex to the nucleus. Water-soluble hormones can enter directly into cells because of their nonpolar status. Which of the following is not one of the components of the gastrointestinal tract? mouth larynx esophagus stomach small intestine larynx Gizzards designed to grind food are found in mammals
Image of page 58
insects birds marsupials monotrenes birds The rhythmic contractions of the esophagus are called esophageal contractions esophageal convulsions peristalsis heartburn sensations mastication peristalsis The stomach produces HCl pepsinogen pepsin pepsinogen and pepsin HCl, pepsinogen, and pepsin HCl, pepsinogen, and pepsin Which of the following is not a heterotroph based on the type of food consumed? detritovore herbivore carnivore omnivore vegan detritovore
Image of page 59
In horses, rodents, and lagomorphs, the digestion of cellulose by microorganisms takes place in the duodenum reticulum cecum omasum abomasum cecum The first organ to receive the products of digestion after absorption is the duodenum pancreas liver gallbladder colon liver The gallbladder secretes into the small intestine a fluid that can make the fat partially water soluble. It is called chyme bile chylomicron emulsion lipoprotein bile Since the hepatic portal vein empties into the liver it is able to control the amounts of alcohol and drugs toxins, pesticides, carcinogens glucose
Image of page 60
toxins, pesticides, carcinogens and glucose alcohol and drugs, toxins, pesticides, carcinogens, and glucose alcohol and drugs, toxins, pesticides, carcinogens, and glucose The human intestine is divided into three regions. Which choice presents the correct order beginning from the stomach? pylorus, duodenum, ileum duodenum, ileum, jejunum pylorus, duodenum, jejunum duodenum, ileum, pylorus duodenum, jejunum, ileum duodenum, jejunum, ileum Select the mismatched vitamin and its deficiency symptom or disorder. vitamin A—night blindness vitamin B1—beriberi vitamin C—scurvy vitamin D—pernicious anemia vitamin K—severe bleeding vitamin D—pernicious anemia 1. Which of these is not part of loose connective tissue? D. chondroiton 2. Which of these neuron structures is usually the longest? A. cell body 3. In adult vertebrates,which of these is not one of the four principle kinds of primary tissues? C. supportive 4. In humans, which of these structures is not made of cartilage? D. knee cap 5. Homeostasis is maintained using negative feedback loops. Changing conditions are detected in which of part of a negative feedback loop? C. sensor 6. For most enzymes, the Q10 value is around B. 2.
Image of page 61
7. Which of these methods of heat transfer is not relevant to biological systems? E. reflection 8. Animals that allow their body temperature to conform to the environment are termed D. poikilotherms.
Image of page 62
Image of page 63

You've reached the end of your free preview.

Want to read all 189 pages?

  • Spring '08
  • GEORGESIMMONS
  • Photoreceptor cell, sensory receptor

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture