the cell Flashcards

(50 cards)

1
Q

it is the regulated, integrated, dynamic, balanced, and maintained, accumulations, of biochemical substances, salts and water

A

cell

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2
Q

the colorless liquid or colloidal contents of living cell, composed of proteins, fats, and other organic substances in water, inorganic salts and including the nucleus and cytoplasm

A

protoplasm

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3
Q

it constitutes approximately 75% of the protoplasmic mass

A

water

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4
Q

it constitutes less than 10% of the total water and involved intimately in the structural integrity of the chemical components

A

bound water

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5
Q

it is involved actively in the chemical events, characteristics, of protoplasm and also acts as solvents in which all of the miscible substances are dissolved

A

free water

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6
Q

the phase in which other substances are suspended, imparting colloidal properties to protoplasm

A

free water

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7
Q

a suspension of small particle dispersed in another substance

A

colloid

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8
Q

It contains particles of a size sufficient to prevent their passing through semipermeable membrane. Can occur as sols or gels (proteins) which are gelatinous or mucinous in characteristics.

A

colloid

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9
Q

differentiate sols from gels

A

Sols are colloidal suspensions with fluid-like properties while Gels are semisolid mixture of small particles of a solid in a liquid colloid

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10
Q

Substances that pass through semipermeable membranes when dissolved in water

A

crystalloids

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10
Q

the primary extraprotoplasmic ions

A

sodium and chloride

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10
Q

important crystalloid

A

glucose and many ions

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10
Q

the primary protoplasmuc cation

A

potassium

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10
Q

the common biochemical of protoplasm.

A

Nucleic acids, proteins, carbohydrates and lipids

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10
Q

primary protoplamic anions

A

bicarbonates and sulphates

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10
Q

considered the repository of information essential for life. They contain the genetic code and serve as blueprints for the synthesis of the most important products of cells – proteins.

A

nucleic acid

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10
Q

macromolecules of repeating nucleotides

A

nuclic acid

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11
Q

nucleotides are composed of

A

pentose sugar, phosphoric acid and a nitrogenous base

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11
Q

primary nucleic acid of the nucleus, but small quantities also occur in mitochondria.

A

dna

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12
Q

nucleotides occur in the form of

A

atp and cAMP

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13
Q

a high energy storage compound that releases energy when a phosphate bond is broken;

14
Q

considered a second cell messenger, stimulates enzymatic reactions and may be a factor in gene regulation.

A

cAMP (cyclic adenosine monophosphate

15
Q

serve as the primary structural and functional components of the cell. It is essential for the architectural and metabolic integrity of the living systems

16
Q

biological compound containing carbon, hydrogen, and oxygen that is an important source of food and energy. It can be classified as monosaccharides, polysaccharides and oligosaccharides.

A

carbohydrates

17
biological compound that is not soluble in water, e.g. a fat. It includes waxes, oils, sterols, triglycerides, phosphatides and phospholipids
lipids
18
Biological properties of cells includes
metabolism, irritability, contractility, conductivity, excretion, endocytosis and exocytosis, growth, maintenance and reproduction.
19
the sum of all reactions that occur within cells.
metabolism
19
is a metabolic process in which energy is used to make compounds and tissues from simple molecules. It is a chemical reactions resulting in the synthesis of new molecular substances that is essential for growth, maintenance and repair.
anabolism
20
the production of energy through the conversion of complex molecules into simpler ones.
catabolism
21
example of catabolism
Internal respiration, or the chemical utilization of foodstuffs for heat and energy production,
22
the ability of cells to respond to stimuli in it environment. Best exhibited by nerve cells (neurons), which are highly specialized to receive stimuli
irritability
23
the ability to transmit waves of excitation along their cellular membrane/transfer of information. Specially exhibited by the nerve cells and muscle cells
conductivity
24
form reactivity. Most cells change shape by shortening along their long axes. This allows them to accomplish work.
contractility
25
the ability to take up small molecules from the blood and transform them into more complex and useful substances that are then released into its environment
secretion
26
The process of producing a substance from the cells and fluids within a gland or organ and discharging it. It is an active process that requires energy.
secretion
27
the act or process of discharging waste matter of metabolism and useful substances from the tissues or organs.
excretion
28
t is a passive process and does not require energy.
excretion
29
essential for homeostasis of cells.
endo and exocytosis
30
the ability to engulf substances by phagocytosis and pinocytosis.
endocytosis
31
is the engulfment of fluid substance
pinocytosis
32
the engulfment of solid substance
phagocytosis
33
the ability to discharge materials or the exit of materials from the cells.
exocytosis
34
is an increase in the number or size of cells.
growth
35
the renewal and replacement of cells (through mitosis) to maintain the normal cell population.
maintenance
36
the increase in the number of cells through mitosis.
reproduction
37
shapeof cell is influenced by
functional specialization
38
cells specialized for filtration
squamous
39
cells for conductivity
nerve cells with axons and dendrites
40
why is the lining cells in the surface of small intestine are columnar
because adjacent cells are closely apposed and the pressure between themdoesnt allow cells to expand laterally
41
inherent ability of the cells to alter shape example
white blood cell