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Arte-miy333 [17]
3 years ago
15

Which of the cell junctions is involved in creating a barrier between cells?

Biology
1 answer:
aleksklad [387]3 years ago
6 0

Tight junctions are cell junctions that seal tissues. These junctions form protective and functional barriers.

  • The cell junction that is involved in creating a barrier between cells is the TIGHT junction.

  • The tight junctions are cell-cell adhesion structures implicated in cell polarity and signaling.

  • On the other hand, adherens junctions are cell junctions required for maintaining contact inhibition.

  • Finally, desmosomes are intercellular junctions that bind intermediate filaments of the cytoskeleton with cadherin proteins.

Learn more in:

brainly.com/question/13605066?referrer=searchResults

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Why does active transport take place in the small intestine during absorption of food molecules? I thought it was only diffusion
dezoksy [38]
Well if the small intestine needs to absorb the nutrients, then the nutrients kind of have to go somewhere right?
also, there is a transfer from high to low
inside the small intestine there are lots of nutrients that need to be absorbed to be made into energy
the cells would only have to take in more nutrients if it has run out, aka it's low on nutrients
thus the high concentration outside the cell and the low concentration inside leads to the active transport through the cell membrane
3 0
3 years ago
Christiane Nüsslein-Volhard and her colleagues carried out several experiments in an attempt to understand what determines the a
Dmitry [639]

Answer:

Explanation:

Bicoid gene is the maternal effect gene whose protein concentration gradient patters the anterior-posterior axis in Drosophila embryogenesis. It was the primary protein that is demonstrated to act as a morphogen. Morphogens are proteins whose concentration gradient will affect the developmental fate of the surrounding region.

The specified bicoid gene is the one which codes for bicoid protein. This protein is being existing in a gradient manner in the egg and thus its concentration is higher at the anterior end and lower in posterior end.

This bicoid protein is responsible for the stimulation of the development of the anterior end.

The posterior region (including the hindgut) expands and extends towards the anterior pole along the dorsal side of the embryo. At this time, segments of the embryo become visible, creating a striped arrangement along the anterior-posterior axis.

6 0
2 years ago
What structure in the female reproductive system produces eggs?
allochka39001 [22]
ovary

These oocytes are formed during the early development of the person, it is together formed in the embryonic stage of development.

In puberty, these oocytes have now been mature thus, the individual is ready for her first menstruation, it takes time before these oocytes are fully developed but they are formed as early as the state of the genitalia, brain, body was formed.
<span>Somehow, it is like the brain, the brain is slowly developing til the near age of puberty or late childhood. </span>
<span>Eyes are also an analogy to oocytes, during infancy these organs aren't developed yet and these years the child can only see vague and blurred vision and takes almost 2 years for the child to see clearly.</span>
3 0
3 years ago
What is the correct order of genetic material from smallest to largest?
Ede4ka [16]

Answer: allele, gene, DNA, chromosome, nucleus

Explanation: An allele is a variant of a gene or a different form of a gene. A gene is a segment of a DNA that codes for an RNA or a protein. A DNA is a genetic material that contains all the genetic information of an organism. A DNA is packaged and condensed into a threadlike material known as chromosome and chromosomes are found in the nucleus of a cell.

5 0
2 years ago
Read 2 more answers
A group of similar cells that perform a common function
Alchen [17]

Answer:

Tissue

Tissue is the group of similar cells that are common in origin to perform particular function. Tissue system is the group of similar tissues that are common in origin and perform particular function. Organs are made up of tissue system.

Explanation:

4 0
2 years ago
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