1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sindrei [870]
3 years ago
12

Tissue culture experiments with PDGF demonstrate that without this substance _____.

Biology
1 answer:
Sergeeva-Olga [200]3 years ago
5 0

Answer:

Answer is 2. Fibroblasts fail to divide.

Explanation:

Tissue culture experiment is the experiment where tissues are grown in an artificial medium. This involves the use of growth medium such as agar or broth. This process help to produce needed tissues in a short period of time.

Fibroblasts are cells which are found in the collective tissues, and they produce collagen. The collagen produced by the Fibroblasts play important role in tissue repair. Fibroblasts are regarded as the main cells in the connective tissue.

Note that, PDGF, which is Platelet -derived growth factor in full, is a growth factor regulating cell growth and it's division.

You might be interested in
Think of an animal that eats other animals.Why would soil be important to this animal
miskamm [114]

Explanation:

Food chain is the process or method that connects plants and animals to the ecosystem. In this process, herbivorous animals feed on plant for their nutrition and the carnivorous animals feed on the herbivores as their source of food.

Soil plays a key role in this process as it contains many molecules like phosphorous, nitrogen etc. which is taken up by the plants through roots and hence consumed by the animals. This is how energy ascends from one trophic level to another although there is a decrease in each increasing trophic level.

4 0
3 years ago
3. Water molecules tend to stick together because *
Sladkaya [172]
Answer:B
Because none of the rest make any sense whatsoever to be the answer
3 0
2 years ago
Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction in which water and carbon dio
Zolol [24]

Answer:

This question is incomplete; the remaining part is as follows:

What mass of simple sugar glucose is produced by the reaction of 6.48g of water?

The answer is 4.780g of glucose

Explanation:

Photosynthesis, as described in the question, is a chemical reaction in which water and carbon dioxide chemically react to form the simple sugar glucose and oxygen gas. The chemical reaction is as follows:

6CO2 + 6H2O ---> C6H12O6 + 6O2

6 moles of H2O will produce 1 mole of glucose

Using mole=mass/molar mass

Molar mass of CO2 = 44g/mol, C6H12O6 = 180g/mol

Mass of water used = 6mol × 44g/mol

= 244g

Mass of glucose produced = 1mol × 180g/mol = 180g

That is;

244g of H2O will produce 180g of glucose

Hence, 6.48g of H20 will produce:

= 6.48 × 180/244

= 4.780g of glucose

5 0
2 years ago
Read 2 more answers
One way that mining for mineral resources damages land is by
RUDIKE [14]
The correct option is D.
Mining for mineral resources is an intensive task that involves disturbing and disrupting the lands where the minerals are found. The process of mineral exploration and eventual mining cause great disturbances to the affected land and one of the damages done to such land is great increase in soil erosion. 
7 0
3 years ago
Read 2 more answers
Help plzzzz
Ilya [14]

Answer:6

Explanation:

6 molecules of carbon dioxide are required, one for each carbon atom in glucose. 6 molecules of oxygen are produced as a by product of water oxidation. Sunlight provides the free energy needed to make the endergonic pathway proceed.

7 0
3 years ago
Other questions:
  • adenine, guanine, cytosine, and thymine are the four nitrogenous bases present in the dna of all organisms. which scientist disc
    5·2 answers
  • How are the two bacterial kingdoms different from the four other kingdoms
    5·1 answer
  • A single-base mutation in a region of DNA coding for mRNA could transcribe the DNA sequence CAGTAT into?
    15·1 answer
  • In order to determine how likely it is that a child will inherit a certain trait, you can use a
    11·2 answers
  • Lowering a streams base level will cause the stream to
    15·1 answer
  • Which salivary gland produces a serous secretion containing large amounts of salivary amylase?
    7·2 answers
  • Why is the sky blue?
    5·2 answers
  • Aldosterone exerts effects on principal cells of the kidney by causing:
    5·2 answers
  • When a gene changes with a population over time it is referred to as
    6·1 answer
  • How are proteins and nucleic acids related?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!