TLS Online TPP Program

#Question id: 9215


Use the following figure to answer the question


Five new individuals were added to a small population of bighorn sheep in 1986, and ten more were added between 1990 and 1994. According to the figure, what occurred in this population after these additions?


#Unit 9. Diversity of Life Forms
  1. The population increased exponentially.
  2. The population increased in overall numbers.
  3. The population growth rate increased.
  4. The population continued to decline.
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TLS Online TPP Program

#Question id: 27980

#Unit 1. Molecules and their Interaction Relevant to Biology

The proton-motive force has 
a. chemical potential energy due to proton-proton repulsion
b. chemical potential energy due to H+ difference in the two regions separated by the membrane 
c. electrical potential energy H+ difference in the two regions separated by the membrane 
d. electrical potential energy due to proton-proton repulsion

Which of the following is true

TLS Online TPP Program

#Question id: 13164

#Unit 4. Cell Communication and Cell Signaling

Match the following.

Column I

Column II

Column III

A. G Protein–Coupled Receptors That

Activate PDE

i. cAMP

a. Increase in conversion of glycogen to glucose

B. G Protein–Coupled Receptors That

Activate Adenylyl Cyclase

ii. cGMP

b. Hyperpolarization or depolarization of photoreceptor membrane

C. G Protein–Coupled Receptors That

inhibit Adenylyl Cyclase

iii. DAG

c. activates genes necessary for cell division

D. G Protein–Coupled Receptors

That Trigger Elevations in Cytosolic and

Mitochondrial Calcium

 

d. increase in K+ permeability hyperpolarizes the

membrane

Which one of the following is correct?

TLS Online TPP Program

#Question id: 11202

#Unit 7. System Physiology – Animal

If you experimentally increase the concentration of K+ inside a cell while maintaining other ion concentrations as they were, what would happen to the cell's membrane potential?

TLS Online TPP Program

#Question id: 19740

#Unit 3. Fundamental Processes

Choose the correct statement
a) Telomeric RNA component is encoded by TLC1 in yeast, and hTERC in humans
b) Telomeric RNA component is encoded by hTERC in yeast, and TLC1 in humans
c) Telomerase protein component with catalytic activity is encoded by EST2 in yeast, hTERT in humans
d) Telomerase protein component with catalytic activity is encoded by hTERT in yeast, EST2 in humans

TLS Online TPP Program

#Question id: 32429

#Unit 2. Cellular Organization

In skeletal muscle the cytoplasmic Ca2+ concentration is restored to resting levels within 30 milliseconds, allowing the:
a. Binding of tropomyosin with myosin
b. Binding of calcium with troponin C 
c. Myofibrils to relax
d. Myofibrils to contract