answer.
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
Sever21 [200]
2 years ago
7

Density-dependent inhibition is explained by which of the following? As cells become more numerous, the protein kinases they pro

duce begin to compete with each other, such that the proteins produced by one cell essentially cancel those produced by its neighbor. As cells become more numerous, the cell surface proteins of one cell contact the adjoining cells and they stop dividing. As cells become more numerous, they begin to squeeze against each other, restricting their size and ability to produce control factors. As cells become more numerous, the level of waste products increases, eventually slowing down metabolism.
Biology
1 answer:
Damm [24]2 years ago
6 0

Ans.

Regulation of cell division includes various controlling processes that inhibit uncontrolled cell division, to prevent development of tumors. Density-dependent inhibition involves reduction in cell division, when a population of cells acquires certain density.  It leads to contact between cell surface proteins of adjoining cells that gives negative signals for cell division and thus, prevent cell division.

Thus, the correct answer is 'as cells become more numerous, the cell surface proteins of one cell contact the adjoining cells and they stop dividing.'

You might be interested in
An example of mitosis at work is a leaf
babunello [35]
I believe it is B. Growing

Hope this helps!
8 0
2 years ago
A postsynaptic potential is a graded potential that is the result of a neurotransmitter released into the synapse between two ne
Ksju [112]

Answer:

True

Explanation:

When the resting potential of the membrane is changed, the membrane becomes either more negative inside or less negative. This small deviation from the resting potential is called graded potential. A graded potential occurs when a stimulus triggers opening or closing of the mechanically gated  or ligand-gated channels present in the plasma membrane.

For example, the presynaptic neuron releases neurotransmitters in response to a nerve impulse. The neurotransmitter binds to receptors present in the plasma membrane of the postsynaptic neuron and triggers the opening of the ion channels to allow the inflow of particular ions to flow. The flow of ions changes the voltage across the membrane. This change in membrane voltage is a postsynaptic potential and is a type of graded potential.  

3 0
2 years ago
The temperature-insensitive ____________ extracted from a bacterium found in hot springs can withstand the high temperatures nee
igor_vitrenko [27]
The temperature insensitive, thermostable, DNA polymerase was extracted from a bacterium found in hot springs can withstand the high temperatures needed to separate the double stranded DNA and the replication process can continue uninterrupted. The enzyme thermus aquaticus can withstand the high temperature used to separate double stranded DNA, so replication does not need to be interrupted by the need to add more enzymes. 
8 0
2 years ago
Read 2 more answers
TP synthesis in glycolysis: substrate-level phosphorylation. The ATP that is generated in glycolysis is produced by substrate-le
Papessa [141]

Answer:

d. The phosphate group added to ADP to make ATP comes from free inorganic phosphate ions.

6 0
2 years ago
Euglena is microbial eukaryote that has chloroplasts and can thus perform phtosynthesis. When deprived of light and treated with
Advocard [28]

Answer:  

Euglena have diversed nutritional requirements. They are autotrophic when kept in light and heterotrophic when deprived of light.

The Euglena contains chloroplast in it to perform photosynthesis in the presence of light.

When the Euglena is kept in the dark it starts deriving energy from the organic matter around it and shows heterotrophic mode of nutrition.

When light will be provided to Euglena it will start resynthesizes its photosynthetic pigment and it will start perform photosynthesis.

7 0
2 years ago
Other questions:
  • Tissue cultures (samples of cancer cells) are taken from cancer patients, and the cells are then grown in a laboratory. What is
    14·2 answers
  • The biosphere is the highest level of organization in the hierarchy of life on earth. Rank the levels of organization from most
    5·2 answers
  • Match the characteristics below to either gymnosperms or angiosperms.
    9·2 answers
  • ____________ join with the epithelium of blood vessels to form blood-brain barrier in the brain.
    11·1 answer
  • How do bone markings on modern human skeletons relate to bone markings found on the fossils of common ancestors?
    9·1 answer
  • Dr. Tanaka discovered a new virus. The virus has a single strand of a nucleic acid, but she does not know if it is DNA or RNA. A
    14·1 answer
  • Describe what scientists mean when they refer to an ecological community such as that shared by the leopards and lions.
    8·1 answer
  • Students at a university were split into two groups and each received a different text for a philosophy course. One group receiv
    7·1 answer
  • The receptive field of this type of cell in the striate cortex is made up of a large number of receptive fields from neurons in
    15·1 answer
  • The pulmonary arteries have light violet blood why?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!