The answer is (C) inside the cell membrane. The channels for facilitated diffusion aren’t outside, or else things still couldn’t get in, so the answer is not A. And it isn’t B because then things couldn’t get in from outside either. I am positive that the answer is inside the cell membrane. Have a lovely day
Since glucose works to increase blood sugar concentration and insulin works to decrease blood sugar concentration, the pancreas creates and secretes more insulin when glucose is high.
Therefore, the answer is A.
Answer:Knowledge of Seed physiology helps in understanding of different physiological and morphological changes that occur during germination. By knowing the different inputs requirement of plants (water, nutrients, sunlight) we can easily manage the plant population to get highest yield.
Explanation:
I'm sorry if I didn't get some parts ;-;
Answer:A. The release of calcium ions causes myosin and actin to attach to each other.
The contraction of skeletal muscles takes place by induction of a nerve impulse, which produces a movement and the interaction of the filaments containing proteins named as actin and myosin. This interaction of filaments is regulated by proteins called tropomyosin and troponin present on the actin filaments. The motor nerve causes the depolarization of the muscle membrane sarcolemma. This triggers the sarcoplasmic reticulum to release calcium ions. This calcium binds to troponin and thus allows the tropomyosine strand on the actin filament to displace so that the part of the actin where myosine head needs to be attached remain uncovered. Binding of the actin myosine filament results in contraction.
Hence, the release of calcium ions causes myosin and actin to attach to each other causes muscle contraction.