Answer:
C) primary cell wall --> plasma membrane --> cytoplasm --> tonoplast
Explanation:
When a potassium ion moves from the ground into a vacuole of a plant cell, it must pass through the different structures that are part of it.
First, the outermost layer of the cell is the cell wall. Plant cells may have a primary and a secondary wall, but the latter is not always present. The primary wall is always located outwards (and in the case of having a secondary wall, it will be located between the primary wall and the plasma membrane).
Then, inside the cell wall, we will find the plasma membrane (also called plasmalemma).
When crossing the membrane, the ion will be in the cytoplasm of the cell and will be directed towards the vacuole, which is surrounded by its membrane called tonoplast. The vacuole is an organelle that has no definite shape, although it is always surrounded by the tonoplast, and it contains different substances such as water and enzymes.
Answer:
The correct answer is - А. experiment.
Explanation:
An experiment is a type of research method used for scientific investigation to check how a natural phenomenon works and how a particular variable affected by causing or manipulating one variable.
The affected variable called the dependent variable and the variable that is changed is called the independent variable. Other than independent variables other variables should be controlled so there would be no influence on the result other than independent varibles.
Answer:
Skeletal muscles are long and cylindrical in appearance; when viewed under a microscope, skeletal muscle tissue has a striped or striated appearance. The striations are caused by the regular arrangement of contractile proteins (actin and myosin). ... Skeletal muscle also has multiple nuclei present in a single cell.
Explanation: Hope this helps. :)
Metal is only cold because of our bodies temperature, that’s what makes it seem cold when we hold it. But metal is normally warm
