Browse topic-based Biology practice sets.
1757 practice sets · Page 25 of 88
Which system controls smooth and cardiac muscles of the digestive, cardiovascular, and excretory systems?
central nervous system
peripheral nervous system
autonomic nervous system
parasympathetic nervous system
Cranial nerves originate in the brain. They belong to which system?
central nervous system
peripheral nervous system
autonomic nervous system
parasympathetic nervous system
In the vertebrate brain and spinal cord there are several types of glial cells in which system?
central nervous system
peripheral nervous system
autonomic nervous system
parasympathetic nervous system
In a cephalized invertebrate, which system transmits impulses from the anterior ganglion to distal segments?
central nervous system
peripheral nervous system
autonomic nervous system
parasympathetic nervous system
Short-term memory information processing usually causes changes in the
brainstem.
medulla.
hypothalamus.
hippocampus.
Wakefulness is regulated by the reticular formation, which is present in the
basal nuclei.
cerebral cortex.
brainstem.
limbic system.
Which of the following is an amino acid that operates at inhibitory synapses in the brain?
acetylcholine
epinephrine
endorphin
GABA
Which of the following is a neuropeptide that functions as a natural analgesic?
acetylcholine
epinephrine
endorphin
serotonin
What is the neocortex?
a primitive brain region that is common to reptiles and mammals
a region deep in the cortex that is associated with the formation of emotional memories
a central part of the cortex that receives olfactory information
an additional outer layer of neurons in the cerebral cortex that is unique to mammals
Which of the following is associated with the evolution of a central nervous system?
a complete gut
bilateral symmetry
radial symmetry
a closed circulatory system
Yellowing of leaves is called
Tylosis
Chlorosis
Necrosis
Florosis
Write an example of bacteria and the process which is responsible for reducing nitrates togaseous nitrogen ?
Agrobacterium and Nitrification
Pseudomonas and Agrobacterium
Nitrosomonas and Denitrification
Agrobacterium and Denitrification
Which substances of soil water are degraded gradually by, atmosphere and microorganisms ?
Organic material
inorganic material
elements
positive ions
Which of the following is not related with intra cellular fluid ?
Mn
Mg
Mo
Na
Which method of hydroponics used for raising plants in solution filled containers such as a glass, jars, buckets, tubs and water tanks ?
static solution culture
nutrient film technique
Aeroponics
tissue culture
Which method of hydroponics is used for providing nutrients to plants or seedlings in environment saturated with fine droplets of nutrients ?
Aeroponics
Continousflow of cultured solution
Static cultured solution
Suspension culture
Which is the true statement for the vanadium element ?
deficiency do not regulate the size of stomata.
It is united in the formation of bipolar spindle during cell division.
plant do not get ammonia from the soil, due to its deficiency.
It plays role as structural component of vitamin Biotin and thiamin.
Which is proper pair of ions and its deficiency symtoms ?
Nitrogen - Induction of dormancy
Potassium - Scorched look to leaves
Phosphorous - Chlorosis
Zinc - Brown spoted of fruit
Which is improper pair of the following ?
Ionic balance in plants - Na
Cell wall component - B
Activation of Nitrogenase - Cu
Required for iron absorption - Ni
Which is correct statement for Active transport ?
It occurs in the concentration gradient so ATP is not required.
It occurs in the concentration gradient so ATP is required.
It occurs against the concentration gradient so ATP is not required.
It occurs against the concentration gradient so ATP is required.
