answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Paraphin [41]
2 years ago
8

Five dialysis bags constructed of membrane, which is permeable to water and impermeable to sucrose, were filled with various con

centrations of sucrose and then placed in separate beakers containing an initial concentration of 0.6 M sucrose solution. At 10-minute intervals, the bags were massed (weighed) and the percentage change in mass of each bag was graphed.

Biology
1 answer:
Gekata [30.6K]2 years ago
3 0

Answer:

The options

A. A

B. B

C. C

D. E

The CORRECT ANSWER IS D.

E.

Explanation:

It is a regular occurrence for dialysis bags or dialysis tubing to be employed in permitting smooth movement of molecules when having to do with a fluid. These bags are normally evaluated to ensure that the client has adequate amount in th bag so as to be able to achieve the goal at hand.

If we have five dialysis bags being formed from a semi-permeable membrane which is impermeable to sucrose, they may be saturated with different concentrations of the sucrose with each of these bags being positioned in different beakers that have an initial amount of 0.6 M of a sucrose solution.

At ten minute intervals, the bags were massed and the weight was calculated to look for changes in the level of concentration. In this situation, the bag with the lowest initial concentration of sucrose is be the one that has its mass reducing over time and that is E.

The attached image confirms our answer as from the graph, option E shows the lowest initial concentration of sucrose.

You might be interested in
What factor is mostly responsible for the form of matter?
andrew11 [14]
Wheres the answer choice or something
5 0
2 years ago
Hank Greene, an airline pilot, is having difficulty with the sleep-wakefulness portions of his circadian cycle. The pineal gland
d1i1m1o1n [39]

Answer:

Melatonin

Explanation:

  • Melatonin is the hormone that is produced by the pineal gland in response to the dark and light cycle.
  • The pineal gland is turned on when there is darkness and turned off when there is light.
  • When it's dark, the pineal gland becomes active and produces melatonin leading to an increase in the melatonin levels in the blood and a person starts to feel more sleepy and the levels of melatonin remain in the blood for about 12 hours after which they fall and the state of wakefulness occurs.
  • The levels of melatonin fall sharply in the presence of bright light.
  • Thus, the melatonin hormone is responsible for controlling the sleep-wake cycle.
7 0
2 years ago
Which of the following modifies and smoothes the respiratory pattern?
stealth61 [152]

The correct answer is: A) pontine respiratory centers

The respiratory centre in the pons is responsible for generating and maintaining the rhythm of respiration. Besides this elementary function, it also has the ability to adjust respiration rhythm in c response to physiological changes. Respiratory centre consists of three major respiratory groups of neurons:

•  The dorsal respiratory group (DRG)- initiates inspiration (inhalation)

• the ventral respiratory group (VRG)-responsible for exhalation

• Pontine respiratory group- includes the pneumotaxic (controls both the rate and the pattern of breathing) and apneustic centers (promotes inhalation by sending signals to dorsal group).

6 0
2 years ago
Which of the following is an important exception to the central dogma of molecular biology? a) Proteins are responsible for most
iogann1982 [59]

Answer:

b: many genes code for RNAs that function directly in the cell

Explanation:

<em>The central dogma</em> theory describes the basic framework for gene expression in living organisms. Genetic information from DNA is encoded or transcribed as RNA which then becomes translated as proteins.

The processes that take place for gene to be successfully expressed are;

  • Replication
  • Transcription
  • Translation

<em>Replication</em> is a process whereby DNA makes a copy of itself to be distributed in daughter cells during cell division.

<em>Transcription</em> is the process whereby genetic information in DNA is encoded as RNAs. The RNAs are short-lived as they are quickly utilized in protein synthesis or <em>translation </em>process.

Hence, the RNAs do not function directly in the cells but mere intermediaries in the synthesis of proteins.

<em>The correct option is b.</em>

3 0
2 years ago
You are studying green colorblindness in your family (colorblindness is recessive and on the X-chromosome).
Alina [70]

Answer:

B C and E

Explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • Why can bacteria recognize a human gene and then produce a human protein
    5·2 answers
  • 11) A patient has had a serious accident and lost a lot of blood. In an attempt to replenish body fluids, distilled water, equal
    9·1 answer
  • An advantage associated with the Darrieus rotor is that it _____.
    14·2 answers
  • Tay-sachs disease causes lysosomes to rupture. how would this affect the cell? check all that appl
    8·1 answer
  • Why is using antimicrobial drugs to kill large numbers of gram-negative bacteria in a short period of time a cause for medical c
    8·2 answers
  • Julio wants to study the effect of water temperature on hatching of fish eggs in a lake which these experiment designs would be
    6·1 answer
  • An amoeba is a single-celled organism that feeds on algae, plant cells, and bacteria. When an amoeba feeds, it first makes conta
    12·2 answers
  • When the concentration of solute is the same throughout a system, the system has reached ....?
    6·1 answer
  • Look at the training plan for a junior hockey team. What body systems do you think would be most involved in strength training?
    5·2 answers
  • What is an asteroid that is pulled off course by a planet’s gravity and orbits around that planet called?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!