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nlexa [21]
1 year ago
14

Which statement describes the ability of the cell membrane to allow various substances to move tbrough it?

Biology
1 answer:
sweet [91]1 year ago
8 0

The statement that describes the ability of the cell membrane to allow various substance to move through is that the cell membrane is preamble and allows only certain substances to pass through.

Explanation:

The plasma membrane is preamble, hydrophobic molecules and small polar molecules diffuse through lipid layer. The integral membrane proteins enable large polar molecules to pass through the membrane.

Some molecules can cross the membrane like hydrocarbons and oxygen. Whereas the large molecules like glucose and sugars cannot cross. The water pass through lipid.

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Sugar beets (Beta vulgaris) are a major crop in the Red River Valley of the North. Why do you think the beets have to be harvest
makvit [3.9K]
<h2>Sugar beet harvest </h2>

Explanation:

Sugar beets have to be harvested and stockpiled in September because  they have to get the root out of the ground before the ground freezes

  • Sugar beets are harvested with two primary pieces of equipment
  • The defoliator removes the green leaves and slices a slab from the top of the sugar beet root
  • This removed slab is the growing point of the sugar beet and contains high levels of impurities, which impede the factories ability to extract the sugar from the remainder of the harvested root
  • The sugar beet root is then harvested with a pinch wheel harvester, which pinches the root and lifts from the soil
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3 0
1 year ago
What would happen to life on earth if the rates of photosynthesis and cellular respiration in all phototrophs were equal?
Reptile [31]

Answer:

When the level of release of carbon dioxide during respiration and use of carbon dioxide during photosynthesis this results in a compensation point. At compensation point the net available carbon dioxide to phototrophs becomes  zero. As, carbon dioxide is the chief ingredient for photosynthetic products like glucose and oxygen. These products are used up during the process of respiration. When the rates of two processes photosynthesis and respiration becomes equal. Phototrophic organisms will not be able to compensate for lack of carbon dioxide levels. Phototrophs will not be able to produce their food in the form of glucose and hence will not be able to respire too. This will result in lack of overall available food from phototrophs and lack of available oxygen for respiration. This will result in decline of organisms on earth.

4 0
1 year ago
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What is the current classification of bacteria formerly termed members of the Bethesda-Ballerup group? g
vladimir1956 [14]

Answer:

Explanation:

This group is made up bacteria that utilizes of citrate and are slow lactose-fermenting. They belong to the family Enterobacteriaceae which share some particular feature with the lactose-fermenting citrobacters.

Thus, they have now been included in the genus Citrobacter with no regards to how fast or slower their lactose fermentation is.

3 0
2 years ago
What did the discovery of radioactivity do to change the geological time scale?
Gemiola [76]

yes Answer:

Explanation:

bc yes

5 0
1 year ago
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2. Which of the following can survive either with oxygen or without it?
Gnesinka [82]
2. Which of the following can survive either with oxygen or without it?
facultative anaerobes 


3. Where are you likely to find a photoautotroph? 

near the surfaces of lakes and streams


4. During what process do prokaryotes exchange genetic information?

conjugation 


5. What would be a direct consequence of the disappearance of nitrogen-fixing prokaryotes? 

<span>Organisms would not be able to get nutrients they need to make proteins</span>
4 0
2 years ago
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