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FromTheMoon [43]
3 years ago
10

I need help with number 12

Biology
1 answer:
Vsevolod [243]3 years ago
3 0
A) I hypothesize that Tide will take out grass stains

b) Independent variable: thing that we are changing
The independent variable is the type of detergent

c) Dependent variable: thing that we are measuring
The dependent variable is how well tide will take.
out grass stains compared to other detergents

d) Control variable: another test that will stay the same
so we can compare it to the experiment
The control variable is another type of detergent
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When vesicles of the cardiac sarcoplasmic reticulum (CSR) are incubated with ATP Mg^2+ and Ca^2+, they take up Ca^2+ and reach a
abruzzese [7]

Answer

I added 4 and 5 as an attachment due to time constraint.

Explanation:

1. at a steady state ca2+ taken by vesicle = 40n/mol

enclosed volume of CSR = 5μ/mg

concentration of ca2+ in vesicle =

40*10⁻⁶/5x10⁻⁶

= 0.008

= 8x10⁻⁹mol/L

2. radius of circle =75nM

volume = 150nm

volume of vesicle = 4/3 x pi x r³

= 1.33 x 3.14 x (75x10⁻⁹)³

= 1.77 x 10⁻²¹

when we convert this we get

1.77x10⁻¹⁸L since 1m³ is equal to 100oL

surface area =4x3.14x(75x10⁻⁹)²

= 12.56x5.625⁻¹⁵

= 7.065x10⁻¹⁴m²

this is 7.065x10⁻¹⁰cm²

3. number of vesicle/CSR

= 5x10⁻⁶/1.77x10⁻¹⁸

= 2.824x10¹²

surface are = 2.824x10¹² x7.06x10⁻¹⁰

= 19.95x10²

8 0
3 years ago
Contrast flagella and pili. what are their functional roles?
gogolik [260]
Both flagella and pili are extensions from the bacterial cell body. Flagella are like a whip or a tail while pili are best described as hairlike.A pilus is a hairlike appendage found on the surface of many bacteria.
7 0
3 years ago
The greatest concentration of CO2 in an adult is found in the:
deff fn [24]

Answer:

A

Explanation:

The pulmonary artery carries de-oxygenated blood from the right ventricle of the heart to the lungs. It is the only artery that carries de-oxygenated blood. This blood is usually from the tissues and has a lot of carbon dioxide from the cellular respiration of cells around the body. The blood is pumped to the lungs to be oxygenated and the carbon dioxide expelled.

3 0
3 years ago
What is a slippery slope in your own words<br><br>need help ASAP​
gogolik [260]
An idea or course of action which will lead to something wrong. Or if you mean a literal slippery slope then ice ig lol
3 0
1 year ago
Name the type of the leaf when its lamina is entire or when incised?​
Komok [63]

Answer:

compound

Explanation:

A leaf is said to be simple, when its lamina is entire or when incised, the incisions do not touch the midrib. When the incisions of the lamina reach up to the midrib breaking it into a number of leaflets, the leaf is called compound

5 0
3 years ago
Read 2 more answers
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