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3 years ago

Why is folate supplementation recommended for women one month before conception and during the first trimester of pregnancy?

Biology

1 answer:

Mkey [24]3 years ago

7 0

Answer: Folate can prevent birth defects of the baby's brain because it helps to form the neural tube.

Explanation:

Folate is the naturally occurring form of vitamin B9. After its intake, the digestive system converts it into the active form of vitamin B9 that will eventually be used by the cells to perform different functions. Basically, the body uses it to make new cells, because it is vital for cell growth and development. It is an important part the diet and it is also important during pregnancy. This is because it helps prevent neural tube defects such as anencephaly or spina bifida among others that occur when the spine and brain of a baby do not develop completely.

So, as stated above, folate is used during pregnancy because it play a role in the development and proliferation of the the neural tube.

You might be interested in

What’s the difference between a standing defense and an induced defense?

gizmo_the_mogwai [7]

The correct answer is: 4) Standing defenses are always present; induced defenses develop in response to a threat

Induced defense is defense that can be changed or invoked when needed. Induced defenses are slow to happen. When invoked, induced defense requires energy but otherwise doesn’t.

Standing defense is always there. It is use, for example when predation is a constant threat.

3 0

3 years ago

Multiple Choice New species arise when a. a portion of the population becomes isolated from the remainder of the population and

Mandarinka [93]

Answer:

a. a portion of the population becomes isolated from the remainder of the population and experiences different selective pressures

Explanation:

This is an example of allopatric speciation Allopatric speciation is a form of speciation (formation of new species) that occurs as a result of geographic isolation. This means that a part of population becomes physically separated from the initial main population. There is no gene flow between these two populations and as a result the two populations reach a high level of genetic divergence. They can no longer interbreed which means they become two different species (speciation).

New populations evolve as result of mutation, genetic drift and natural selection.

For example, Galapagos finches are isolated from others by the ocean (geographic isolation). Because of the isolation, the finches don’t breed with one another. So, they developed unique characteristics and became endemic.

8 0

3 years ago

The type of reproduction in which the organism produces all of its offspring in a single event?

aleksandr82 [10.1K]

Answer:

it is known as big bang reproduction

7 0

3 years ago

How do I get rid of my stretch marks? I am really insecure about them and I hate my body because of them

likoan [24]

By keeping your skin hydrated, you can help keep the elastin that your skin needs to keep from scarring. Using topical creams such as coconut oil will keep your skin moisturized and make stretch marks less likely. Even without treatment, almost all stretch marks will fade over time.

8 0

3 years ago

Read 2 more answers

Match the cell adhesion or junction with the appropriate choice. Drag the terms on the left to the appropriate blanks on the rig

pav-90 [236]

Answer:

The missing options are:

A) protein subunits associated with gap junctions.

B) a type of adhesive junction connecting an epithelial cell to the basal lamina.

C) collection of fibrous intracellular attachment proteins.

D) create a permeability barrier.

E) button-like points of strong adhesion between two cells.

F) hollow cylinders associated with gap junctions.

G) type of adherens junction connecting cells with the extracellular matrix.

H) intermediate filaments associated with plaques.

I) collection of adherens junctions particularly associated with epithelial cells.

J) type of adhesive junction containing actin microfilaments.

K) specialized modifications of the cell membrane in which two cells come together in multicellular organisms.

L) point of cytoplasmic contact between two cells.

M) anchors cytoskeleton of one cell with that of a neighboring cell.

Set of answers are:

A) protein subunits associated with gap junctions. Conexin

B) a type of adhesive junction connecting an epithelial cell to the basal lamina. Hemidesmosome

C) collection of fibrous intracellular attachment proteins. Plaque

D) create a permeability barrier. Tight junctions

E) button-like points of strong adhesion between two cells. Desmosome

F) hollow cylinders associated with gap junctions. Connexons

G) type of adherens junction connecting cells with the extracellular matrix. focal adhesion

H) intermediate filaments associated with plaques. Tonofilaments

I) collection of adherens junctions particularly associated with epithelial cells.

J) type of adhesive junction containing actin microfilaments. Adherens junctions

K) specialized modifications of the cell membrane in which two cells come together in multicellular organisms. Cell junctions

L) point of cytoplasmic contact between two cells. Gap junction

M) anchors cytoskeleton of one cell with that of a neighboring cell. Adhesive junction

Explanation:

Connexin: is a transmembrane protein that forms the gap junctions, they are also called gap junctions proteins.

Hemidesmosome junctions: these types of junctions are in the epidermis, specifically between the epithelial cells and the basal lamina of the epidermis.

Plaque: they are part of the adherens junctions, they are fibrous proteins that are attached to certain points of the extracellular matrix.

Tight junctions: are junctions between two epithelia, they are very restrictive and do not allow the passage of soluble molecules creating a permeability barrier.

Desmosomes: are very strong cell to cell junctions on the lateral sides of plasma membranes. They are in tissues that are under mechanical stress, such as the cardiac muscle.

Connexons: is a pore made of six connexin proteins in a gap junction. Connexons are the ones that connect two cells in gap junctions.

Focal adhesions: They connect the extracellular matrix with the cell, regulatory signs and mechanical force is transmitted through them.

Tonofilaments: tonofilaments are the ones that are associated with a plaque in adherens junctions, they are in epithelial tissues.

Adherens junctions: are cell to cell junctions where the cytoplasmatic face is connected to the actin cytoskeleton. They appear as spots forming the plaque or as zonula adherens, which are actin bands around the cell.

Cell junctions are protein complexes that connect two cells that are next to each other or a cell with the extracellular matrix. They have a lot of functions, such as pas information from cell to cell, or the exterior, form a barrier, synchronize cells, etc.

Gap junctions: are connections between the cytoplasm of two cells, molecules and, ions pass directly from one cell to the other.

8 0

3 years ago