MDCAT Biology Human Physiology Mcqs Test Online

The protection of internal environment from the harms of fluctuations in external environment

The __________ keeps the internal fluctuations in a narrow range with various control systems compared to wider external fluctuations

Regulation of water and ions in the body is termed

The mechanism of regulation, generally between organism and its environment, of solute and the gain and loss of water is

Detection of change and signaling for effector’s response to control system is a

Which one of the following solutions causes the cell to gain water by osmosis?

The category of plants that has adaptations of small and thick leaves to limit water loss are called which of the following

The plants that grow in shortage supply of water are termed as

Some fishes have relatively low salts in body fluids but have rendered adequate concentration

__________ fishes, constantly lose water from their hypotonic body fluid to hypertonic environments.

The ________ activity and the evaporative cooling is the one of the major temperature reducing strategies

In bacterial and viral infections which of the following increase in number

High level of circulating calcium in blood is called which of the following

Nephrons tublar system form deep loop in inner medulla are which of the following

The presence of sweat glands and lungs are modified for panting in

Urine leaves the body through urthera in human males by which of the following

_______ produce metabolic heat at low level and that is also exchanged quickly with the environment, however, absorb heat from their surroundings

Which of the following can be retained in the body comparatively

Metabolic waste that are ingested into the body are which of the following

Plants respond to cold stress by increasing proportion of unsaturated __________

Terrestrial vertebrates have multilayered skin composed of which of the following

Bunch of cilia present in which of the following

Birds excreted which of the following

The incidence of calcium phosphate type stones are ________% of all the kidney stones

The protection of internal environment from the hazardous of fluctuations in external environment is termed as

The mechanism of regulation generally between organism and its environment of solute and the gain and loss of water is called

The maintenance of internal temperature of the body with in a tolerable range is designated as

The more concentrated external environment with respect to internal environment of a cell is termed as

The Hypertonic environment of the cell, renders cell solution concentrated and shrink the cell due to

The more concentrated external environment with respect to internal environment of a cell is termed as

Plants that are present in severe dry habitat are

In a nephron, a ball of capillaries is present which is called as

Which structure helps fresh water protozoa and paramecium to pump out excess water

The evaporation loss of water is called

Among the assimilated nutrients in animals, carbohydrates and lipids are metabolized to

The elimination of wasteful metabolites mainly of the nitrogenous nature is called

The falling of yellow leaves in autumn is the seasonal time for plants to get rid of the accumulated wastes, because of this reason, leaves are said to be

How much water is required to eliminate 1g of nitrogen in the form of uric acid

Simple tubular excretory system in Flatworms is called

The excretory product of reptiles and birds is