Answer:
a)
Based on the data for the group of cells, among the four proteins, protein p16 does not appear to play a role in blocking cell cycle entry by fibroblasts. The evidence for this is in group 7, where, in the absence of the other proteins the p16 presence has helped the replication of DNA almost as good as the growth in the 10% serum.
In the other groups (3 to 6) the presence of any other protein has always inhibited the DNA replication compared to the fibroblast in 10% serum.
b)
Groups 4 to 7 have higher chance of including cells undergoing mitosis as they are showing more DNA replication compared to the group 1 which has 0% serum. In this group since it has been cultured for 48 hours in the absence of serum (serum-starvation), they stop dividing and enter the G0 stage of the cell cycle.
c)
The data here would provide the crucial information on which protein is required to induce the cells to enter the cell cycle. To recover from an injury the cells should divide and repair the wound, this will happen through stimulating the cell with the required protein. It would also shed light on which protein would inhibit the cells from entry into the cell cycle.
Note: Figure is added in the attachment section
Answer:
(1): CONNECTIVE
(2): PLASMA
(3): INJURY
(4): 55%
(5): RED BLOOD CELLS
(6): WHITE BLOOD CELLS
(7): THROMBOCYTES
(8): ERYTHROCYTES
(9): LEUKOCYTES
(10): PLATELETS
Explanation:
In terms of its tissue classification, blood is classified as a ____CONNECTIVE______tissue because it’s extracellular matrix determines its function. Blood is composed of living blood cells, called formed substances, suspended in a nonliving fluid matrix called ___PLASMA________. The "fibers" of blood only become visible during ______INJURY____________. When blood is centrifuged, the plasma is less dense and rises to the top. It makes up ___55%_____ of whole blood. The other 45% is comprised of 3 formed elements, scientifically they are called: ____RED BLOOD CELLS_______ (RBC), _____WHITE BLOOD CELLS____ (WBC) and ____THROMBOCYTES_____(platelets). The heavier blood cells become packed at the bottom. Most of the bottom is composed of _____ERYTHROCYTES___________. The "buffy coat" separates these two areas. It is composed of ____LEUKOCYTES______ and ___PLATELETS_______.
Answer:
C
Explanation:
Add radio labeled actin sub units to a mixture of actin filaments in which conditions are favorable for polymerization. This would enable you to identify the plus end of actin filaments.
Actin filaments are linear polymer of globular actin sub units Actin filaments have polarity. This means that the two ends can be identified due to structural differences.
Answer:
1. nitrogen fixing bacteria soil converts excess "nitrates"
Explanation:
usually caused by low h2o, water movement and lack of minerals to filter water and kill bacteria..
2 primary components of septic system are tank and a septic pump to regulate waste and store it in a tank underground. when full, a service has to engage in emptying the tank or it will contaminate water supply...
