Recent questions in Biology

1. The juxtaglomerular cells of kidney produce a peptide hormone called erythropoietin 2. Erythropoietin stimulates formation of RBC. Regarding 1 and 2 :

asked Apr 3, 2014 by pady_1

1 answer

Regarding atrial natriuretic factor (ANF) - choose the incorrect option :

asked Apr 3, 2014 by pady_1

1 answer

Regarding Progesterone - choose the incorrect option :

asked Apr 3, 2014 by pady_1

1 answer

Regarding Estrogens - choose the incorrect option :

asked Apr 3, 2014 by pady_1

1 answer

Regarding Androgens - choose the incorrect option :

asked Apr 3, 2014 by pady_1

1 answer

Regarding Insulin - choose the incorrect option :

asked Apr 3, 2014 by pady_1

1 answer

Regarding Islet of Langerhans - choose the insulin and glucagon option :

asked Apr 3, 2014 by pady_1

1 answer

Regarding Islet of Langerhans - choose the incorrect option :

asked Apr 3, 2014 by pady_1

1 answer

1. Small amounts of androgenic steroids are also secreted by the adrenal cortex 2. These androgenic steroids play a role in the growth of axial hair, pubic hair and facial hair during puberty. Regarding 1 and 2 :

asked Apr 3, 2014 by pady_1

1 answer

Glucocorticoids stimulate all except:

asked Apr 3, 2014 by pady_1

1 answer

In our body, 1. Cortisol is the main glucocorticoid. 2. Aldosterone is the main mineralocorticoid. Regarding 1 and 2 :

asked Apr 3, 2014 by pady_1

1 answer

Regarding the actions of adrenaline and noradrenaline - choose the incorrect statement :

asked Apr 3, 2014 by pady_1

1 answer

Regarding thymus gland - choose the correct statement :

asked Apr 3, 2014 by pady_1

1 answer

Regarding parathyroid hormone (PTH) - choose the incorrect option :

asked Apr 3, 2014 by pady_1

1 answer

On the basis of their chemical nature, hormones can be divided into all of the following groups except:

asked Apr 3, 2014 by pady_1

1 answer

Regarding hormones and their receptor - choose the incorrect option :

asked Apr 3, 2014 by pady_1

1 answer

Regarding mechanism of hearing - choose the incorrect option :

asked Apr 3, 2014 by pady_1

1 answer

Regarding vestibular apparatus - choose the incorrect option :

asked Apr 3, 2014 by pady_1

1 answer

At the base of the cochlea, (i) the scala vestibuli ends at the oval window (ii)the scala tympani terminates at the round window which opens to the middle ear Regarding (i) and (ii) :

asked Apr 3, 2014 by pady_1

1 answer

Regarding visual perception - choose the incorrect statement :

asked Apr 3, 2014 by pady_1

1 answer

Regarding eye - choose the incorrect statement :

asked Apr 3, 2014 by pady_1

1 answer

1. The fovea is a thick portion of the retina where only the cones are densely packed. 2. It is the point where the visual acuity (resolution) is the greatest. Regarding 1 and 2 :

asked Apr 3, 2014 by pady_1

1 answer

Regarding midbrain, pons and medulla - choose the incorrect statement :

asked Apr 3, 2014 by pady_1

1 answer

1. The inner parts of cerebral hemispheres and a group of associated deep structures like amygdala, hippocampus, etc., form a complex structure called the limbic lobe or limbic system. 2. Along with the hypothalamus, limbic lobe is involved in the regulation of sexual behaviour, expression of emotional reactions (e.g., excitement, pleasure, rage and fear), and motivation Regarding 1 and 2 :

asked Apr 3, 2014 by pady_1

1 answer

Regarding Hypothalamus - choose the incorrect one :

asked Apr 3, 2014 by pady_1

1 answer

The brain is covered by cranial meninges consisting of an outer layer called _____ , a very thin middle layer called _ and an inner layer (which is in contact with the brain tissue) called _________ .

asked Apr 3, 2014 by pady_1

1 answer

Regarding CENTRAL NEURAL SYSTEM all are true except :

asked Apr 3, 2014 by pady_1

1 answer

Regarding the electrical and chemical synapses - choose the incorrect one :

asked Apr 3, 2014 by pady_1

1 answer

A synapse is formed _______________________________________ a gap called synaptic cleft.

asked Apr 3, 2014 by pady_1

1 answer

When a stimulus is applied at a site on the polarised membrane - (choose the incorrect statement) :

asked Apr 3, 2014 by pady_1

1 answer

Regarding resting potential - choose the correct statement :

asked Apr 3, 2014 by pady_1

1 answer

The electrical potential difference across the resting plasma membrane called the resting potential is maintained by all except :

asked Apr 3, 2014 by pady_1

1 answer

Unmyelinated nerve fibres - 1. Unmyelinated nerve fibre is enclosed by a Schwann cell that does not form a myelin sheath around the axon. 2. It is commonly found in autonomous and the somatic neural systems. Regarding 1 and 2 :

asked Apr 3, 2014 by pady_1

1 answer

Regarding the myelinated nerve fibres - choose the incorrect statement :

asked Apr 3, 2014 by pady_1

1 answer

Each axonal branch terminates as a bulb-like structure called synaptic **** which possess synaptic vesicles containing chemicals called ; the axons ________________________________ .

asked Apr 3, 2014 by pady_1

1 answer

1. Short fibres which branch repeatedly and project out of the cell body also contain Nissl’s granules and are called dendrites. 2. These fibres transmit impulses away from the cell body. Regarding 1 and 2 :

asked Apr 3, 2014 by pady_1

1 answer

Regarding NEURAL SYSTEM - choose the incorrect statement :

asked Apr 3, 2014 by pady_1

1 answer

Coordination is the process through which

asked Apr 3, 2014 by pady_1

1 answer

About 20-25 per cent CO2 is carried by haemoglobin as -

asked Apr 3, 2014 by pady_1

1 answer

Regarding NEURAL REGULATION OF RESPIRATION - choose the incorrect statement :

asked Apr 3, 2014 by pady_1

1 answer

NEURAL REGULATION OF RESPIRATION : 1. A specialised centre present in the medulla region of the brain called respiratory rhythm centre is primarily responsible for this regulation. 2. Pneumotaxic centre present in the pons region of the brain. Neural signal from this centre can reduce the duration of inspiration and thereby alter the respiratory rate. Regarding 1 and 2 :

asked Apr 3, 2014 by pady_1

1 answer

Regarding oxygen binding with hemoglobin - choose the incorrect statement :

asked Apr 3, 2014 by pady_1

1 answer

Regarding transport function of blood - choose the correct statement :

asked Apr 3, 2014 by pady_1

1 answer

1. The solubility of CO2 is 2-5 times higher than that of O2. 2. The amount of CO2 that can diffuse through the diffusion membrane per unit difference in partial pressure is much higher compared to that of O2. Regarding 1 and 2 :

asked Apr 3, 2014 by pady_1

1 answer

1. Concentration gradient(high to low concentration) for oxygen is from tissues to blood and blood to alveoli. 2. Concentration gradient(high to low concentration) is present for CO2 (in the opposite direction) from alveoli to blood and blood to tissues. Regarding 1 and 2 :

asked Apr 3, 2014 by pady_1

1 answer

Respiratory Volumes and Capacities : Functional Residual Capacity (FRC): 1. Volume of air that will remain in the lungs after a normal expiration. 2. This includes ERV+RV. Regarding 1 and 2 :

asked Apr 3, 2014 by pady_1

1 answer

Respiratory Volumes and Capacities : Expiratory Capacity (EC): 1. Total volume of air a person can expire after a forced inspiration. 2. This includes tidal volume and expiratory reserve volume (TV+ERV). Regarding 1 and 2 :

asked Apr 3, 2014 by pady_1

1 answer

Respiratory Volumes and Capacities : Inspiratory Capacity (IC) is _______________ and it includes _ .

asked Apr 3, 2014 by pady_1

1 answer

Respiratory Volumes and Capacities : Residual Volume (RV): Volume of air __ . This averages from .

asked Apr 3, 2014 by pady_1

1 answer

Respiratory Volumes and Capacities : Inspiratory Reserve Volume (IRV) averages from _ and expiratory Reserve Volume (ERV) averages from _ respectively.

asked Apr 3, 2014 by pady_1

1 answer

Ask Questions, Get Answers