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