Practice Questions

TLS Online TPP Program

#Question id: 2597

How do the different types of actin-binding proteins relate to the ability of actin to form bundles and networks?

#Unit 2. Cellular Organization

Proteins promoting bundle formation have one actin-binding site, whereas proteins promoting network formation have two actin-binding sites.
Different types of actin bind different actin-binding proteins to form bundles or networks.
Proteins that promote bundle formation bind ADP-actin, whereas proteins that promote network formation bind ATP-actin.
Proteins promoting bundle formation tend to be short and inflexible, whereas proteins that promote network formation tend to be longer and more flexible.

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TLS Online TPP Program

#Question id: 5928

#General Aptitude

What was the day of the weak on 15th August , 2010 ?

TLS Online TPP Program

#Question id: 4495

#Unit 3. Fundamental Processes

_ elements can block this spreading, protect genes from both indiscriminate activation and repression.

TLS Online TPP Program

#Question id: 12220

#Unit 7. System Physiology – Animal

A female patient has unexplained severe hypernatremia (plasma Na+ = 167 mmol/L) and complains of frequent urination and large urine volumes. A urine specimen reveals that the Na+ concentration is 15mmol/L (very low) and the osmolarity is 155 mOsm/L (very low). Laboratory tests reveal: plasma renin activity = 3 ng angiotensin I/ml/hr (normal = 1.0), plasma antidiuretic hormone (ADH) = 30 pg/ml (normal = 3 pg/ml), and plasma aldosterone = 20 ng/dL (normal = 6 ng/dL). Which of the following is the most likely reason for her hypernatremia?

TLS Online TPP Program

#Question id: 2180

#Unit 2. Cellular Organization

How does inhibition of the Na+/K+ ATPase increase the force of heart muscle contraction?

TLS Online TPP Program

#Question id: 30117

#Unit 1. Molecules and their Interaction Relevant to Biology

Catabolic end product of purines is