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1st quiz 9th grade
Cell theory and living organisms
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Which of the following is not feature of living organisms?
Same Chemical structure of one species
Cellular structure
Electricity
Irritability
Clear selection
What does "alive" mean?
It is a closed system
It is an open system
It is a social system
It made of living particles
Clear selection
What are autotrophic organisms?
Fungi
All Bacteria
Animals
Plants
Clear selection
Which of these is saprotrophic organism?
Human baby
Bacteria
Algae
Kangoo
Clear selection
Which of these are(is) heterotrophic organisms?
All have to be checked true to receive credit for this question (Sorry, system works like this only)
parasites
saprotrophs
autotrophs
predators
plant eaters
Who did first discover a cell?
Robert Hooke
Anton van Leeuwenhoek
Schwann
Virchow
Clear selection
Who was first to conclude cell theory?
Virchow
Schleiden
Schwann and Schleiden
Leeuenhoek
Clear selection
Which one is not a part of cell theory?
All known living things are made up of one or more cells.
Cells composed of different elements and are not related
All living cells arise from pre-existing cells by division.
All cells are basically the same in chemical composition in organisms of similar species.
Clear selection
What is the main sugar used by cells for energy?
fructose
glucose
sucrose
galactose
Clear selection
Cellulose is a _____ made of many _____.
polypeptide ... monomers
carbohydrate ... fatty acids
polymer ... glucose molecules
lipid ... fructose
Clear selection
Fructose is found in:
Animals
Fungi
Plants
Bacteria
Clear selection
Main component of cell membrane is:
Glycerol
Phospholipid
Protein
Carbohydrate
Clear selection
Which one of these is not type of fat?
Butter
Seed oil
Trans lipid in snickers
Phospholipids
Clear selection
After boiling, egg protein albumin changes its level of structure
From quaternary to tertiary
From tertiary to secondary
From secondary to primary
From tertiary to primary
Clear selection
Fats are:
Glycerol+carbohydrates
Glycerol+fatty acids
Hydrogenated fat+fatty acids
Hydrogenat fat+carbohydrates
Clear selection
Variable part of amino acid is:
Carboxyl group
Amino group
Hydrogen
R
Clear selection
Monomers of proteins are:
Fatty acids
Glucose molecules
Amino acids
Nucleic acids
Clear selection
There are 20 amino acids in living nature. How many different protein molecules can be done by using all of them if protein conatains 20 amino acids in it?
19!
20!
400
40000
Clear selection
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