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3 years ago

A sentence for active transport

2 answers:

7 0

Active transport is the movement of a substance, such as glucose, against its concentration. It usually moves from low to high concentration, and through the cell membrane.

dem82 [27]3 years ago

4 0

Active transport is the moving of molecules across the membrane of the cell against the concentration gradient with the use of ATP.

Low to high concentration. Concentration gradient is the diffusion (movement of molecules from regions of low concentration) from high to low with the gradient. Active transport is from low to high, against the gradient.

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Why do we need to break apart the food we eat?

shtirl [24]

Answer:We need to break apart the food we eat so that our bodies can . . . ... Would make it more difficult for your intestines to break down food. Villi. Their main function is to absorb nutrients into the bloodstream

Explanation:

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3 years ago

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MrRissso [65]

Answer:

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2 years ago

Read each description below and determine whether or not it describes a function or property of cerebrospinal fluid. Identify wh

Ostrovityanka [42]

Answer:

Produced by the choroid plexus -T.This is the major secretion site.It is also produced in smaller quantities in the interstitial compartment.

Blocks blood toxins from brain tissue-F, that is the job of the blood brain barrier(BBB).

Supplies oxygen to the brain tissue-T.This gas is dissolved in the CSF together with CO2 for distribution among nervous tissues by the CSF

Maintains the concentration of glycine surrounding the brain-T

Found in the ventricles of the heart and brain-False,it does not reach the heart ventricles.This are occupied by blood.

Prevents concussions-T

Produces antibodies in response to antigen exposure in the brain tissue-False.These are produced by the B-cells, not by in the CSF,based on the specif antigen stimulation.

Effectively decreases the brain's weight-T It reduces the weight of the brain.This is done by the buoyancy it provided for the brain.

Compared to levels in the blood plasma, the CSF is higher in glucose-F.This is wrong, the glucose of the blood plasma is higher.But equal sodium ion,more chloride in CSF, and less protein.It s levels is a relefection of blood glucose.Although it may lag 2-4hrs in the CSF.

It prevents concussion,(T)and and the contraction of cardiac muscles propels its movement(T).

Explanation:

7 0

2 years ago

We think of termites as insects that eat wood. However, termites cannot digest the wood and rely on a variety of eukaryotic and

omeli [17]

Answer:

Obligate mutualism.

Explanation:

Obligate mutualism: It is defined as each organisms are obligated to each other, they rely on one another, means one species cannot survive without the other species. It may involve the interchange of resources, for example food, shelter, and nutrients or may interchange services like transportation, and protection.

Termites are mutualistic related to protozoa which lives inside the insects gut. Termite gets benefits from the bacterial symbiont ability which is present in the protozoa to digest the cellulose. The termites do not have this ability to do this, without the help of protozoa. They are not able to use their energy from the food which is wood, cellulose comes from wood it chews.

So, termites are mutualistic related to protozoans and showing obligate mutualism.

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2 years ago

Write a prediction that answers the lab question, "How are proteins built using the information provided by a molecule of RNA?"

jek_recluse [69]

Ribosomal RNA (rRNA) associates with a set of proteins to form ribosomes. These complex structures, which physically move along an mRNA molecule, catalyze the assembly of amino acids into protein chains. They also bind tRNAs and various accessory molecules necessary for protein synthesis.

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2 years ago

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