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Pani-rosa [81]
3 years ago
9

A student is investigating the role diffusion plays in maintaining homeostasis inside of animal cells. The student plans to plac

e a starch solution inside of a container and place a glucose solution inside of a second container. The student will then place each container into a beaker of distilled water. After 20 minutes, the student will test the water in each beaker for the presence of starch and glucose. Which of the following would be the BEST material for the student to use for the containers holding the glucose and starch solutions? A rubber balloon that can expand and stretch without breaking B tissue paper that will easily rip and dissolve in water C tubing with many pores that are too small to see D glass that has a flat and uniform surface
Biology
2 answers:
umka21 [38]3 years ago
5 0

Answer:

C

Explanation:

Vsevolod [243]3 years ago
4 0
The answer is C tubings with many pores that are too small to see
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3 years ago
Which statement is one of fact supporting how pH and flower color are related?
Goshia [24]
Yes, pH of the soil affects the colour of flower.

Flowering plants grown in acidic soil (pH<7) bears blue flowers or at has a blueish tint.

Whereas, Flowering plants grown in Neutral (pH=7) and Basic (pH>7) soil bears pink and red flowers.

A plant's flower color is determined by a complex balance between chlorophyll, beta carotene, flavonoids,etc in particular pH of the soil to give out vibrant colors like red, blue, pink, yellow,etc.
7 0
3 years ago
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Your research group is investigating the possible use of genetically - engineered cells to produce a vaccine for malaria. In par
gregori [183]

Answer:

<u>Attributes of E. coli articulation frameworks  </u>

Advantages:

  • Quick articulation  
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  • Genome alterations conceivable  
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Disadvantages:

  • Proteins with disulfide bonds hard to communicate  
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<u>YEAST SYSTEM </u>

Advantages:

  • Nearness of post translational change  
  • discharge can be recognized by emission signal  
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Disadvantages:

  • Low yeild of item  

<u>Bacillus articulation frameworks  </u>

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<u>Animal Cells:</u>

Advantage:

  • nearness of post interpretation adjustment  

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Issues with creature utilization  

Can get sullied with creature diseases  

Exorbitant downstream preparing

7 0
3 years ago
What happens in the G2 phase of the cell cycle?
muminat
Your answer is After DNA replication, the cell leaves S phase and enters G2, when the cell prepares for mitosis or meiosis. At the G2 checkpoint, the cell checks two things. First, it checks DNA for any damage that might have occurred during replication. It also ensures all the proteins needed for cell division are present.
7 0
3 years ago
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As evidenced in the graph, the national average CO concentrations have decreased substantially over the years. All BUT ONE tacti
Gekata [30.6K]

Answer:

Explanation:

Carbon monoxide (CO) is a colourless, non-irritant, odourless and tasteless toxic gas. It is produced by the incomplete combustion of carbonaceous fuels such as wood, petrol, coal, natural gas and kerosene. Its molecular weight is 28.01 g/mol, melting point −205.1 °C, boiling point (at 760 mmHg) −191.5 °C (−312.7 °F), density 1.250 kg/m3 at 0 °C and 1 atm and 1.145 kg/m3 at 25 °C and 1 atm, and relative density (air = 1) 0.967 (1,2). Its solubility in water at 1 atm is 3.54 ml/100 ml at 0 °C, 2.14 ml/100 ml at 25 °C and 1.83 ml/100 ml at 37 °C.

The molecular weight of carbon monoxide is similar to that of air (28.01 vs approximately 29). It mixes freely with air in any proportion and moves with air via bulk transport. It is combustible, may serve as a fuel source and can form explosive mixtures with air. It reacts vigorously with oxygen, acetylene, chlorine, fluorine and nitrous oxide. Carbon monoxide is not detectable by humans either by sight, taste or smell. It is only slightly soluble in water, blood serum and plasma; in the human body, it reacts with haemoglobin to form carboxyhemoglobin (COHb).

The relationship of carbon monoxide exposure and the COHb concentration in blood can be modelled using the differential Coburn-Forster-Kane equation (3), which provides a good approximation to the COHb level at a steady level of inhaled exogenous carbon monoxide.

Conversion factors

At 760 mmHg and 20 °C, 1ppm = 1.165 mg/m3 and 1 mg/m3 = 0.858 ppm; at 25 °C, 1 ppm = 1.145 mg/m3 and 1 mg/m3 = 0.873 ppm.

8 0
3 years ago
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