BIOS1035_Workshop_10_2023(1)

Refer to the numbered stages in the image above. How does the membrane permeability to Na+ and K+ change during depolarization, repolarization, and hyperpolarization? Place the blue markers in order from 1-5.

Injecting an arterial fluid which is hypertonic to the moisture level of the body will ___.     add more water to the tissues     remove water from the body's tissues     bring salt and sugar molecules into the capillaries, they are removed in the venous drainage     cause decomposition to progress faster

ENUMERATE  5 EXAMPLES FOR FEMALE CONTRACEPTIVES. DESCRIBE THE CONTRACEPTIVE/S ON HOW IT IS BEING USED/FUNCTIONS.

Two 10-mL samples of urine have specific gravities of 1.003 and 1.030. What is the difference in weight, in milligrams, between the two samples? O 270 mg O 0.27 gm O 27 mg O 0.027 mg

Give two examples of how the plasma membrane functions as more than just a covering of the cell’s insides.

You are given a protein solution with a concentration of 0.15 mg/ml. Suppose that we want to prepare 1 ml of 10 μg/ml solution. How much of H2O and protein stock do we need to add to obtain the target concentration and volume?

The normal range of fasting glucose (C6H12O6) in blood serum is 80-100 mg/dL.  If a patient has a glucose concentration of 6.7 mmol/L, it that in a healthy range?

In biological systems, an ACTIVE transport process is one in which an important chemical component is moved from where it is __________ in concentration, to where it is ___________ in concentration.  Meanwhile, a PASSIVE transport (or diffusion) process is one in which an important chemical component moves from where it is ____________ in concentration to where it is __________ in concentration. Of the two above processes,  transport does not require energy to occur. A FACILITATED transport process is a form of ______________ transport, where an important chemical component moves with the aid of a channel or similar structure.  According to the course lectures, Zoom sessions, course lecture notes, and/or assigned course readings, one specific example of a facilitated transport structure in the cell membrane is _____________  , which aids in the movement of a particular chemical component called __________ .

Can you please help me with this question? As a dialysis patient, Michelle has a 4-h dialysis treatment three times a week. When she arrives at the dialysis clinic, her weight, temperature, and blood pressure are taken, and blood tests are done to determine the level of electrolytes and urea in her blood. In the dialysis center, tubes to the dialyzer are connected to the catheter she has had implanted. Blood is then pumped out of her body, through the dialyzer, where it is filtered and returned to her body. As Michelle's blood flows through the dialyzer, electrolytes from the dialysate move into her blood, and and waste products in her blood move into the dialysate, which is continually renewed. To achieve normal serum electrolyte levels, dialysate fluid contains sodium, chloride, and magnesium levels that are equal to serum concentrations. The table below shows  Michelle's blood tests prior to dialysis showing  the electrolyte levels in her blood are, and A dialysate solution that is…

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Which of the following can pass through a dialysis membrane? Ocolloidal particles O macromolecules small molecules all of them

An 80 kg subject consumed a snack that contained 50 g of carbohydrate.  Before eating the snack the subject’s blood glucose was 5.5 mM.  Calculate the concentration of glucose (mM) that would be reached in the blood after consuming the snack.Assume that all the carbohydrate in the snack was converted to glucose, rapidly absorbed and distributed throughout the extracellular water (ECW) within 30 minutes.  Assume ECW is approximately 20% of body weight and the glucose is not metabolised further.

Do a specific calculation of the amount of NaOH required to make a soap that is made by saponifying a mixture containing 20% avocado oil, 30% lard, and 50% canola oil. Assume that the total weight of the three fats/oils is 100 g and a superfat of 5%.

Question 24 Which of the following occurs when red blood cells are placed in a hypotonic solution? O crenation O they retain their shape O hemolysis O no one really knows; it's still a mystery A Moving to another question will save this response. F2 F3 F4 F5 F6 F7 F8 F9 $4 % 6. 7 W R. T. Y %24 4. %#3

The Nernst Equation calculates the balancing point between 2 forces (gradients) that cause an ion to move across a membrane. What are those 2 forces? Select 2 options: pressure gradient electrical gradient O gravity temperature gradient O chemical gradient

True or false. 1. In an immunoassay for drugs of abuse, any concentration greater than 0 is considered positive screen. 2. Traditionaly, drug screens are performed on blood samples because drug concentration in blood are much higher then in urine?

Which term refers to the the diffusion of water molecules through a selectively permeable membrane?Single choice. osmosis engulfing passive transport

Which has the greater specific gravity 1 ml of urine or 1 ml of water?

A colony of bacteria accustomed to an environment with a temperature of 25 °C was moved to an identical environment, except that its temperature was 35 °C. The higher temperature increased the fluidity of the bacterial membranes. How can the bacteria regain their original membrane fluidity?

Name five normal solutes found in urine.

Which of the following can be used to concentrate a substance inside of a cell?   A. Osmosis B. Diffusion C. Faciliated Diffusion D. Active Membrane Pumps

Iwhich a blood cellisplaced manypertonic Soluution the bl0od cell may undergo? Which types of attractive forces hexane does Clettpy have? alion-aipole. Dipole dipole and London force Of the atrative forces 1ndan force Hydrogen bonding and london fo

A 2.57 g sample of fat contains 1.21 mg of PCB's. What is the concentration of PCB's in the fat in appropriate mass/mass units? 471 ppb 4.71 ppm 47.1 % 471 ppm