Glucose 6-phosphate allosterically inhibits

A) hexokinase I.

B) glucokinase.

C) hexokinase II.

TLS Online TPP Program

#Question id: 2585

#Unit 2. Cellular Organization

Which of the following is the correct sequence that describes the excitation and contraction of a skeletal muscle fiber?

A. Tropomyosin shifts and unblocks the cross-bridge binding sites.

B. Calcium is released and binds to the troponin complex.

C. Transverse tubules depolarize the sarcoplasmic reticulum.

D. The thin filaments are ratcheted across the thick filaments by the heads of the myosin molecules using energy from ATP.

E. An action potential in a motor neuron causes the axon to release acetylcholine, which depolarizes the muscle cell membrane.

TLS Online TPP Program

#Question id: 11164

#Unit 2. Cellular Organization

Cellular membranes are self-sealing— if they are punctured or disrupted mechanically, they quickly and automatically reseal. What properties of membranes are responsible for this important feature?

TLS Online TPP Program

#Question id: 12353

#Unit 10. Ecological Principles

The number of individuals per unit area determines the population's

TLS Online TPP Program

#Question id: 34124

#Unit 7. System Physiology – Animal

Which of the following is produced only by large amounts of glucocorticoids?

TLS Online TPP Program

#Question id: 27126

#Unit 4. Cell Communication and Cell Signaling

Dye injected into a plant cell might be able to enter an adjacent cell through a: