Answers
1a
2a
3b
4a
Let me know if you want explanations :)
Answer:
1. Potassium
2. increasing towards zero
3. hyperpolarization
4. voltage-regulated Potassium
Explanation:
Membrane potential can be defined as the difference in electric charges inside and outside of a cell. The resting membrane potential (RMP) occurs when there is no net current across the membrane and therefore the cell is in a non-excited state. At the RMP, sodium ions (Na+) are more concentrated inside the extracellular fluid (ECF) than inside the intracellular fluid (ICF), while potassium ions (K+) are more concentrated inside the ICF. The diffusion of K+ outside the cell triggers its hyperpolarization, by becoming the membrane potential more negative compared to the resting potential. As the potential nears +35 mV, the voltage-regulated potassium channels are open, thereby K+ ions leave the cell down its concentration gradient, while voltage-gated Na+ channels become saturated and inactivate.
Answer:
T
Glucose provides plants with needed food through a process called photosynthesis. This process helps plants convert the energy they take in from sunlight into sugar to help nourish the plant. Photosynthesis occurs when carbon dioxide, water and sunlight are combined. Plants use these to form glucose and oxygen.
Explanation:
Answer:
Adrenocorticotropic hormone is a polypeptide tropic hormone produced by and secreted by the anterior pituitary gland. It is also used as a medication and diagnostic agent. ACTH is an important component of the hypothalamic-pituitary-adrenal axis and is often produced in response to biological stress.
Answer:
Find the explanation below.
Explanation:
Culture refers to the way of life practiced by people, and their way of life includes their values, customs, language, beliefs, knowledge, and traditions. Culture would impact the demand for jobs in agriculture depending on the value a group of people places on agriculture. In most African cultures, for example, agriculture is highly valued and even some agricultural seasons are celebrated, an example is the New Yam festival celebrated by the Igbos in Nigeria. For such cultures, the demand for jobs in agriculture would be high because it is a treasured part of their lives.
However, for cultures that view agriculture as a strenuous activity, and place more emphasis on white-collar jobs, the demand for agricultural jobs in such climes would be low.
