100 500 200 700 1000 900 800 600 400 300 ecology basics cell miracles! membranes to breathe…or not...

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100 500 200 700 1000 900 800 600 400 300 Ecology Basics Cell Miracles! Membranes To breathe…or Not to Breathe 100 100 100 100 200 200 200 200 300 300 300 300 400 400 400 400 500 500 500 500 600 600 600 600 700 800 1000 1000 900 900 800 700 1000 800 900 700 1000 900 800 700 Cell History and Microscopes

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Page 1: 100 500 200 700 1000 900 800 600 400 300 Ecology Basics Cell Miracles! Membranes To breathe…or Not to Breathe 100 200 300 400 500 600 700 800 1000 900

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Cell History and Microscopes

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These special types of “climbing devices” have been installed to help salmon migrate upstream.

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The loss of a single species may cause a ripple effect felt across an entire ecosystem. This “kind” of

species is called a _____________species because it has an unusually large effect on

its ecosystem.

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This is any type of change that can make an organism better suited for its

environment.

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Organisms that make their own food are autotrophs, but these are organisms that eat autotrophs

(directly or indirectly)

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In population ecology, this describes the maximum number of

individuals that a stable environment can support

indefinitely.

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Some tiny prokaryotes (bacteria) have been found that make their own

food without sunlight. _______________is the process by

which an organism makes food using chemicals (rather than light) as an

energy source.

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In a particular food chain, grass is eaten by rabbits that are eaten by owls. In this food chain, the grass is the producer and the rabbit is the

_____________consumer

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1. _________: organisms that eat only plants.

2. ___________: organisms that eat only animals.

3. _____________: organisms that break down organic matter into simpler

compounds

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The principle of ______________ _______________ states that when two species are competing for the same resources, one species will be better

suited to the niche, and the other species will be pushed into another

niche or become extinct.

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These are 2 examples of A)abiotic factors in an ecosystem and 2

examples of B)biotic factors in an ecosystem.

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We always begin examining microscope slides with this

objective lens in place

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This category of cells has a definite nucleus and organelles.

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A bacteria cell is _____________, since it has no nucleus or membrane-bound

organelles

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“This” microscope part regulates the amount of light on a standard

microscope.

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The ocular lens of a microscope has a magnification of 10X and the objective lens has a magnification of 40X. The

total magnification is….

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In the microscope lab, this is the most notable difference between the onion

epidermis cells and the Elodea leaf cells

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This is the highest magnification a scope could have (with an eyepiece at 10X, a low power objective at 10X and

a high power objective at 50X)

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The Cell Theory states that 1)All organisms are made of __________, 2)All existing cells are produced by other living ___________, and 3)The

____________is the most basic unit of life.

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This “type” of microscope with a light source shining from a)above,

b)beneath or c)both gave us the chance to see our pond water sample

in “3-D”.

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Within a membrane, a cell is filled with a “jellylike substance” called a)______________ that contains

dissolved molecular building blocks. In some cells, this “jelly-like” substance

also contains b)____________, structures specialized to perform

distinct jobs in the cell.

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This is a long whip-like tail used for cellular locomotion.

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This is a major difference between rough and smooth E.R. (endoplasmic

reticulum)

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This is the organelle used in photosynthesis ; it helps to convert

the sun’s energy into food.

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This is the cell organelle that helps to make the proteins that carry out

endless jobs in our bodies

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The process of moving molecules out of a cell

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These are the cells recycling centers: they contain digestive enzymes to digest damaged or foreign material

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List three things that all cells have in common

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This organelle packages, processes and ships proteins and fats; it also functions in producing lysosomes

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Mitochondria and chloroplasts contain a small amount of this

genetic material…it allows them to direct the production of some of

their own proteins

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V Words!

A ____________is a fluid filled sac used for storage of material by the cell

whereas a _____________ is a general name describing small membrane-bound sacs that transport materials

from place to place.

Continue

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A membrane is said to be “this” if it allows only certain molecules to pass.

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This is the current cell membrane “model” describing a cell’s texture

and appearance

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Movement of molecules across a cell membrane that does not require

energy input from the cell.

What is passive transport

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This is the process by which water travels from areas of higher to lower concentration across a membrane

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___________transport drives molecules across a membrane from a region of

low concentration to high concentration with the input of

energy.

Continue

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A type of endocytosis in which the cell membrane “engulfs” large particles to

bring them into a cell.

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If one of the high energy, unstable phosphate bonds “breaks” from

adenosine triphosphate (ATP), energy is released, and “this” molecule is

produced.

Continue

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When a cell (90% water and 10% salt) is placed into an environment that is 92% water and 8% salt, the cell will

likely do “this”.

Continue

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When concentrations of substances on either side of a membrane are the same, the system is said to be in

_________________.

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Elephants are larger than mice, right? This is the reason why an elephant’s

cells are not much larger than a mouse’s cells.

Continue

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This is the color of Bromothymol blue with a large amount of carbon dioxide

is present.

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These are the products of cellular respiration.

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These are the requirements for photosynthesis.

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The primary photosynthetic pigment found in the chloroplast. (Its electrons

are excited by the sun’s energy).

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Chlorophyll reflects these colors (or wavelengths of light) most of all.

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This pigment is a major contributor to a carrot’s orange color.

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According to our snail/elodea lab results, the following hypothesis would

be (supported / not supported / refuted)

Elodea takes in CO2 that the snail breathes out (in the light)

Continue

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The ___________ _____________ reactions use energy from the light-dependent

reactions to make sugars.

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This is an example of an electron carrier in photosynthesis or respiration

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These are two factors that affect photosynthesis

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