random
tenets
structures
scientist
complexity
100
Until the invention of this tool people did not know that cells exist.
microscope
100
which of the following sentences does not represent one of the principles of the cell theory
all organism are made of cells
all cells have nucleus
all cells come from pre-existing cells
the cell is the basic unit of life
all cells have nucleus
100
If you compare the cell to a city, which of the following organelles have a similar function to the image shown below?
mitochondria
100
Which of the following scientist is not related to the discovery and development of the cell theory?
Theodor Schwan
Matias Schleiden
Rudolf Virchow
Robert Remark
Isaac Newton
Anton Van Leewenhoek
Isaac Newton
100
In multicellular organisms, groups of cells that work together are called:
tissues
200
Which statement below about cells is true?
All things are composed of cells
All cells come from another cells
All cells have nucleus
All cells and tissues contain nucleus
All cells and tissues contain nucleus
200
the cell theory has 3 parts?
yes
200
From the following concepts, which is not an organelle of the cells
nucleus
mitochondria
cell membrane
capside
capside
200
which part of the cell theory did Schleiden help establish with his observation of plant material?
cells were named by robert hooke
all organism are made of one or more cells
nonliving things are made up of cells
all cells come from exiting cells
all organism are made of one or more cells
200
How are new cells formed?
by cellular division
300
what is the smallest unit of an organism that is classified as living?
cell
300
cell theory has 3 parts: the cell is the basic unit in all living things, all cells come from existing cells, and_____
all organism are made of one or more cells
300
The function of this organlle is to direct the cell activity, it's the city hall in a town
nucleus
300
The contributions of Robert Remak, were used by Rudolf Virchow to stablish which of the tenets of the cell theory?
all cell come from pre-existing cells
300
Acording to their complexity (number of cells), how organism can be classified?
in multicellular and unicellular
400
True or False: People have always known that all living things were made of cells
false
400
To which organ of the human the cell membrane is similar? why?
The skin, because is a layer that surrounds, protects and regulates entrance and exit of substances.
400
This organelle is a very strong barrier that protects the plant cell from pathogens, is like a brick wall that surrounds the city.
cell wall
400
which scientist do we have a record that observe microorganism for the first time?
A.V. Leeuwenhoek
400
how it is called a group of tissues working together?
organ
500
Which of the following is the characteristic that all organism have in common?
all organism are made up of cells
all organism are multicellular
all organism can make their own food
all organism have cells with a nucleus
all organism are made up of cells
500
To which organ of the human body the mitochondria is similar? why?
to the digestive system (stomach), because it transforms the food into chemical energy the body can use
500
This organelle is present just in plants, because it allows them to transform sunlight into food ( sugars), its like a food factory in a city
chloroplast
500
Which scientist made popular the term of cell?
R. Hooke
500
How is it called a group of organs working together?
organ system