1st Semester Practice Quiz
On this quiz, score 80% or higher, and receive a +5 bonus on the test.
Your LAST Name:
1. Phospholipids make up most of the lipid part of the cell membrane. Since water exists on both the outside and inside of a cell, which of the following phospholipid arrangements makes the most sense?
a single layer of phospholipids with the polar heads facing outside the cell
two back-to-back phospholipid layers with the polar heads facing out on both sides
two back-to-back phospholipid layers with the non-polar tails facing out on both sides
a single layer of phospholipids with the polar heads facing inside the cell
2. Which of the following would not be restricted (limited) by low levels of ATP?
3. Which of the following cells and their functions are correctly matched?
melanocytes | protects cells in the stratum corneum from damaging effects of sun's rays
tactile cells | protection
keratinocytes | provide sense of touch and pressure
dendritic cells | activate the immune system
4. The composition of the secretions of the eccrine glands is ________.
primarily uric acid
99% water, sodium chloride, trace amounts of wastes, and vitamin C
fatty substances, proteins, antibodies, and trace amounts of minerals and vitamins
5. Which hormone increases osteoclast activity to release more calcium ions into the bloodstream?
6. Cranial bones develop ________.
within fibrous membranes
within osseous membranes
from cartilage models
from a tendon
7. Rigor mortis occurs because ________.
the cells are dead
no ATP is available to release attached actin and myosin molecules
proteins are beginning to break down, thus preventing a flow of calcium ions
sodium ions leak into the muscle causing continued contractions
8. What is the functional unit of a skeletal muscle called?
the sarcoplasmic reticulum
9. Cell bodies of sensory neurons are located in ________.
the ventral root ganglia of the spinal cord
the dorsal root ganglia of the spinal cord
10. What is the main function of the rods in the eye?
accommodation for near vision
vision in dim light
Never submit passwords through Google Forms.
This content is neither created nor endorsed by Google.
Terms of Service