M
2
O
3
T
O
N
O
P
L
A
S
T
4
5
6
7
8
9
10
1 = organit celular cu rol în procesul de respiraţie
2 = organite cu rol în secreţia celulară
3 = nume dat membranei vacuolelor
4= se găsesc la jumătatea fusului de diviziune în timpul metafazei
5 = au rol în procesul de fotosinteză
6 = împreună formează vacuomul celular
7 = coordonează întreaga activitate a celulei
8 = proces prin care se înmulţesc celulele
9 = organit cu rol în diviziunea celulară
10 = organite celulare descoperite de George Emil Palade
Transmission of the nerve message within the neuron is electrical in nature.
The answer is actually TRUE. I go to Keystone online school and took the quiz.
Answer is B) The movement of chemicals into the dendrites of the neuron causes a nerve impulse.
Answer:
Receptors
Explanation:
The cell membrane has receptors integrated or embedded into to it known as Membrane receptors or trans-membrane receptors . Membrane receptors are specialized proteins and act in cell signalling by receiving extracellular molecules by binding to them.
In multi-cellular organisms cell signalling allows speciation o groups of cells and when the signal is released the membrane receptors are the ones that will receive it.
Bile from the liver is secreted into the small intestine to make the absorption of nutrients more efficient.
B
Involuntary muscles of the small intestine contract to make the absorption of nutrients more efficient.
C
Salivary glands deposit saliva into the small intestine to make the absorption of nutrients more efficient.
D
Villi in the small intestine have thin-walled capillaries to make the absorption of nutrients more efficient.
The correct answer is:
D .Villi in the small intestine have thin-walled capillaries to make the absorption of nutrients more efficient.
Explanation:
The small intestines are well adjusted for absorbing nutrients during digestion by being very long, having villi and microvilli that enlarge surface area, using muscular contractions to move and mix food, and raising and housing digestive enzymes and bile that aid the breakdown of food. The inner surface of the small intestine is not flat but thrown into circular folds, which not only enhance surface area but aid in preparing the ingesta by acting as baffles. Villi: the mucosa makes multitudes of ridges which project into the lumen and are satisfied with epithelial cells.