BDS Cell Physiology Quiz

Glucose is co-transported with Na+ ions. This is a type of:

• Secondary active transport

• Primary active transport

• Facilitated diffusion

• Simple diffusion

• osmosis

Cell shape and motility is provided by:

• Centrosomes

• Microtubules

• Golgi apparatus

• Nucleus

• Endoplasmic reticulum

The fluidity of the plasma membrane is due to:

• Phospholipids

• Cholesterol

• Glycolipids

• carbohydrates

• Glycoproteins

Which of the following characteristics is shared by simple and facilitated diffusion of glucose?

• Occurs down an electrochemical gradient

• Is saturable

• Requires metabolic energy

• Is inhibited by the presence of galactose

• Requires a Na+ gradient

The Golgi complex is an organelle that participates in the breakdown of proteins and lipids.

• is an organelle that participates in the breakdown of proteins and lipids.

• is an organelle that participates in posttranslational processing of proteins.

• is an organelle that participates in energy production.

• is an organelle that participates in transcription and translation

• is a subcellular compartment that stores proteins for trafficking to the nucleus

Total body fluid in a normal adult is 42 liters (60 % of the body weight). The distribution of this fluid in different compartments of body is:

• One third intra cellular, one third extra cellular and remaining in blood.

• One third intra cellular, two third extra cellular.

• Two third intra cellular, one third extra cellular

• One third intracellular, remaining in plasma, RBCs and intra cellular.

Which of the following statement about peroxisomes is correct?

• Peroxisomes are pinched off from the golgi apparatus

• Degrade worn out organelles

• They contain proteases and lipases enzymes

• Contain oxidases enzymes

• They are of two types primary & secondary peroxisomes

A large volume of blood was transfused in a person with intact barorecetor system. His arterial pressure raised from 100mm Hg to 125mm Hg. What is the Gain of the system if the correction is -50mmHg & and the error persisting is +25mm Hg

• -4mm Hg

• -2mm Hg

• +2mmHg

• -6mmHg

• +6mmHg

Which of the following transport mechanism is not rate limited by Vmax (maximum rate of reaction)

• Facilitated diffusion via carrier proteins

• Primary active transport via carrier proteins

• Secondary Co- transport

• Simple diffusion

• Secondary counter- transport

Which of the following is the self-replicating organelle:

• Mitochondria

• Centrioles

• Ribosomes

• Endoplasmic reticulum

• Nucleus