CELL THEORY Flashcards

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1
Q

WHAT IS CELL?

A

considered as the main building blocks of all organisms

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2
Q

What are the different levels of organizations?

A

Cell-Tissues-Organ-Organ System-Organisms

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3
Q

Who coined the term cell ? The cork looked as if it was made of tiny pores, which he came to call “cells” because they reminded him of the cells in a monastery.

A

Robert Hooke

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4
Q

He observed RBC and discovered animal cell “animalcules”- tiny living organisms and discover bacteria and protozoa

A

Anton Van Leeuwenhook

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5
Q

Who is Robert Brown?

A

He discovered nucleus

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6
Q

He is a botanist thatconcluded that all plants are made up of cells.

A

Matthias Schleiden

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7
Q

Who is Theodor Schwann?

A

He is a zoologist that concluded that all animals are made up of cell.

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8
Q

He said that All cells arise from pre-existing cells.

A

Rudolph Virchow

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9
Q

What is the cell theory?

A

The cell is the basic unit of all living organisms.
All organisms are made up of cell.
Cells came from pre-existing cells.

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10
Q

What is order?

A

highly organize and coordinate structure

Ex.Single celled organism -organelles-molecules- atom

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11
Q

What is Sensitivity or Respond to Stimuli

A

Response to an action or event,diverse stimuli

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12
Q

What is phototropism and hydrotropism? Chemotoxis and phototaxis?

A

Chemotoxis -away form chemical
Phototaxis -away from light

Phototropism is light
Hydrotropism is water

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13
Q

What is Reproduction and it’s example?

A

Single celled organism reproduce by duplicating their DNA
Increase in number

Ex: 37.2 Cells in our body and
50 billions die daily -Apoptosis

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14
Q

Use to form new individual?

A

Multicellular organisms– produced germline cell —to rise gametes to form individual

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15
Q

What is the properties of life where it is a increase in size?

A

Growth and development -
Organisms grow and developing following specific instructions by their genres-

Ex: metamorphosis

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16
Q

It is a properties of life where it required multiple regulatory mechanisms to coordinate internal function, respond stimuli,and cope in environmental stresses?

A

Regulation
Ex: nutrients transport ,blood flow, waste removal

17
Q

It is a properties of life to maintain condition such us proper temperature,ph and concentration of diverse chemical?

A

Hemostasis -to maintain constant internal conditions,

Ex: Perspiration - person
Panting for dogs

18
Q

Energy processing is for metabolic activities in what process?

A

Organisms capture energy from sun-convert to chemical energy for food- chemical energy stored in molecules

Heterotrophs- chemical molecules for food
Autotrophs -sun to chemical energy for food to molecules

19
Q

What is a type of single celled organism and sperm ?

A

Protists

20
Q

What are the 6 properties of life?

A

Order-Sensitivity or Response Stimuli-Reproduction-Growth and Development -Regulation- Homeostasis -Energy Processing