page 1-2 Flashcards

1
Q

movement

A

an action by an organism or a part of an organism causing a change of
position or place

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2
Q

Metabolism

A

chemical reactions that take place in the body

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3
Q

Anabolism

A

when a complex molecule is formed from simpler ones

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4
Q

Catabolism

A

when a complex molecule is broken down into a simple molecule

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5
Q

Respiration

A

the chemical reactions in the cell that break down nutrient molecules
and release energy for metabolism

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6
Q

Sensitivity

A

the ability to detect or sense stimuli in the internal or external
environment and make appropriate responses

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7
Q

Growth

A

a permanent increase in size and dry mass by an increase in cell number
or cell size or both

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8
Q

reproduction

A

the processes that make more of the same kind of organism

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9
Q

Excretion

A

removal from organisms of the waste products of metabolism which
include chemical reaction in cells including respiration taking materials and
substances in excess of requirements

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10
Q

Nutrition

A

taking in of materials for energy, growth and development.

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11
Q

Light microscope

A

a microscope that uses light which shines through the piece of
animal or plant you’re looking at and uses glass lenses to magnify and focus the
image which can magnify up to 1500 times. It is used to make photo micrographs.

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12
Q

Cell

A

the functional and structural basic unit of life

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13
Q

electron microscope

A

a microscope which uses beams of electrons to magnify up
to 500,000 times. It is used in making an electron micrograph.

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14
Q

Eyepiece

A

lens present at the top and is used to see the objects understudy which
have magnification of 10 to 15 times

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15
Q

Tube

A

also called the body tube which connects the eyepiece to the objective lenses

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16
Q

Resolving nosepiece

A

it allows the rotation of lenses while viewing and has holders
for the different objective lenses

17
Q

Coarse adjustment knob

A

use for focus on scanning

18
Q

Fine adjustment knob

A

use for focus on Oil. Moves the body tube for focusing the
high power lens

19
Q

Arm

A

It supports the tube of microscope and connects to the base of the microscope

20
Q

Stage

A

the platform that is flat used for placing the slides under observation

21
Q

Stage dip

A

holds the slides in proper place

22
Q

Base

A

provide basal and support

23
Q

Power switch

A

the main power station that turns the illumination on and off in a light
microscope

24
Q

Magnification of a diagram

A

is how many times it is larger than the real object. The
formula is M=I/A

25
Q

Cell membrane

A

is the partially permeable membrane made up of proteins and fat. It
controls what enters and leaves the cell.

26
Q

Cell wall

A

is made up of cellulose (polysaccharide) and is fully permeable. It protects
and supports the cell.

27
Q

Cytoplasm:

A

is 70% water and consists of proteins dissolved in it for metabolic
reactions to take place.

28
Q

Vacuoles

A

a plant vacuole consists of sugar solution and cell sap. An animal vacuole
is called a vesicle and consists of nutrients or water.

29
Q

Chloroplast

A

present only in plants and contains chlorophyll and starch grains.

30
Q

Nucleus

A

consists of chromosomes which have DNA.

31
Q

diffusion

A

the net movement of molecules from a region of their higher
concentration to a region of their lower concentration down a concentration gradient,
as a result of their random movement.

32
Q

osmosis

A

is the diffusion of water molecules through a partially permeable
membrane(semi-permeable membrane) from a region of high water potential to low
water potential.

33
Q

partially permeable membrane

A

allows small molecules like water to pass through,
but not large dissolved solutes.

34
Q

Hypertonic

A

More solute concentration (low water potential)

35
Q

Water potential

A

is a property of a solution that describes how free the water
molecules are and it’s stored energy of the water molecules before it has to use it for
dissolving the solute

36
Q

Isotonic

A

Equal solute concentration

37
Q

Hypotonic

A

Less solute concentration (high water potential)