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3 years ago

In which category would you place a protist that is a heterotrophic with a flagella?

1 answer:

Nutka1998 [239]3 years ago

6 0

Most protists move with the help of flagella, pseudopods, or cilia. Some protists, like the one-celled amoeba and paramecium, feed on other organisms. Others, such as the one-celled euglena or the many-celled algae, make their food by photosynthesis. Many of these protists can be found in a drop of pond or lake water.

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Which is the pair of the enzyme activities most significantly affected by glucagon- and insulin-dependent phosphorylation and de

prisoha [69]

Answer:

b. Phosphofructokinase; Fructose-1,6-bisphosphatase

Explanation:

Glucagon is a hormone which functions to initiate gluconeogenesis whwreas insulin functions to initiate glycolysis.

Fructose-2,6-bisphosphate (F26BP) is an allosteric regulator of the glycolytic and gluconeogenic enzymes phosphofructokinase-1 (PFK-1) and fructose-1,6-bisphosphatase (FBPase-1).

It stimulates glycolysis and inhibits gluconeogenesis by binding to its allosteric site on phosphofructokinase-1 reducing its affinity for the allosteric inhibitors ATP and citrate .

It is formed by phosphorylation of fructose-6-phosphate catalyzed by phosphofructokinase-2 and is broken down by fructose-2,6-bisphosphatase which are two separate enzymatic activities of a single, bifunctional protein (PFK-2/FBPase-2).

Phosphorylation of PFK-2/FBPase-2 due to glucagon release enhances its FBPase-2 activity thereby stimulating gluconeogenesis and inhibiting glycolysis.

Dephosphsorylation of PFK-2/FBPase-2 due to insulin release enhances its PFK-2 activity, thereby stimulating glycolysis and inhibiting gluconeogenesis.

3 0

4 years ago

Which method would best allow the scientist to confirm the actual age of the fossil

Aneli [31]

i think it's:

using carbon/nitrogen absolute dating

Hope it'll help!

stay safe:)

8 0

3 years ago

Where do convection currents occur

Rus_ich [418]

Answer:

C. in areas with different air pressures

Explanation:

"Convection currents occur within:

The geosphere – plate tectonics

The atmosphere - wind

The hydrosphere - ocean currents"

Hope this helps u.

4 0

3 years ago

Spermatogenesis produces __________________ from one original cell.

Vlada [557]

The answer is four haploid cells

8 0

4 years ago

Read 2 more answers

Which stage of processing occurs when the stimulus activates one or more sensory receptor nerves, and the resulting sensations g

marusya05 [52]

Answer:

Stage III Interpretation

Explanation:

There are three stages of perception process

• Exposure

• Attention

• Interpretation

During perception, the sensory receptors are active and they receive stimulus from their surroundings. However, the complete perception of any stimulus is interpreted by the brain because only brain is capable of differentiating between the sensory stimulus based on the pathway followed by them. On the basis of perceived information, action potential signals are generated that are sent back to the sensory organ (perceiving the stimulus at their end) for further responses.

4 0

3 years ago