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A plant response that causes movement that is not dependent on the direction of the stimulus and it is reversible
Nastic responose
What kind of tropism is this ?
 
Thigmotropism
 
Phototropism
 
Gravitropism
 
none of the above
What kind of leaf venation is this?
 
Pinnate
 
palmate
 
parrallel
 
whorled
What kind of root is this one ?
 
Taproot
 
Fibrous root
 
modified root
 
prop root
What kind of plant cell responsible for photosynthesis
parenchyma cells
The two cells that control the opening and closing of stomata are .............
Guard cells
........................ small openings on leaves through which carbon dioxide, water, oxygen, and other gases pass.
stomata
......................... reduce water loss from plants and prevent bacteria and other disease-causing organisms from entering the plant
Cuticle
......................... Increases in root and stem diameters
Lateral meristem
................................ the regulation of the internal environment of a cell or organism to maintain conditions suitable for life
Homeostasis
.....................................pump uses the energy to transport three sodium ions out of the cell while moving two potassium ions into the cell
Na+/K+ ATPase pump
.......................is the process by which a cell surrounds a substance in the outside environment, enclosing the substance in a portion of the plasma membrane
Endocytosis
............................. helps to prevent the fatty-acid tails of the phospholipid bilayer from sticking together
Cholesterol
....................... : stick out from the plasma membrane to define the cell’s identity and help cells identify chemical signals
carbohydartes
If you have a random sample of a plasma membrane, how can you determine if this plasma membrane belongs to an animal or plant cell?
cholesterol
Which of those sentence is TRUE ?
 
none of the above
 
plasma membrane allows all substances to pass through
 
Phospholipids increase the fluidity of the membrane
 
prokaryotic cells evolved from eukaryotic cells millions of
Which of those are the basic principles of cell theory?
 
All of the above
 
Cells arise only from previously existing cells
 
Cells are the basic unit of structure of all living organism
 
All living organisms are composed of one or more cells
............................... are specialized structures that carry out specific cell functions
 
Organelles
 
plasma membrane
 
Prokaryotic
 
Cellular structure
A key property of the plasma membrane is
 
selective permeability
 
Membrance permeability
 
semetric permeability
 
homeostasis
What kind of diffusion by which some sugars can pass through the membrane ?
 
facilitated diffusion
 
Simple diffusion
 
Osmosis
 
Exocytosis
What kind of solution is this ?
Hypertonic
Which of the following is present in a prokaryotic cell?
 
cytoplasm
 
nucleus
 
mitochondrion
 
Endoplasmic reticulum
.......................... electrons are passed, or transmitted, through a specimen to a fluorescent screen
Transmission electron microscope (TEM )
A cell was first discovered by Robert hooke by using
cork


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