1. Which of the following nerve endings is responsible for generating sensa-tions of light
touch and texture?: Tactile discs
2. T4 (thyroxine) is secreted by the:: Thyroid gland
3. The area of the retina that is densely concentrated with cones and is thecenter of highest
visual acuity is known as the: Fovea centralis
4. Which hormone is important for regulation Ca2+ levels in the blood?: -
Parathyroid hormone
5. Which of the following hormones from the anterior pituitary stimulates thegonads to
produce the egg or sperm?: FSH (follicle-stimulating hormone)
6. LH (luteinizing hormone) is secreted by the: Anterior pituitary
7. Which anatomical plane divides the body into ventral and dorsal sections?-
: frontal
8. Which component of a feedback system detects the change or stimuli andsends input
onward?: Receptor
9. Most homeostatic regulatory mechanisms involve which feedback system?-
: Negative
10. A molecule that has an unequal number of protons and neutrons is
knownas a .: Isotope
11. What is the name of the serous membrane that lines the surface of thepancreas?: Visceral
peritoneum
12. The antecubital region is to the brachial
region.: Distal
13. Which type of chemical reaction consists of breaking down large moleculesinto smaller
ones?: Decomposition
14. What type of chemical bonds occur when molecules share one or more pairsof electrons
unequally?: Polar covalent
15. Which of the following macromolecules plays a specific role in producingsex steroids?:
Cholesterol
16. Which organelle specializes in packaging, transporting, and modifyingproteins produced
by the rough ER?: Golgi apparatus
17. Human somatic cells contain how many chromosomes?: 46
18. Which molecule makes up the majority of the plasma membrane?: Phos-pholipids
19. Which of the following lipids make up the majority of the plasma mem-brane?: