FAQ: Which Of The Following Kidney Processes Is Always Active And Always Requires Energy To Occur?

Which kidney process does not require energy to occur?

Simple diffusion moves a substance from a higher to a lower concentration down its concentration gradient. It requires no energy and only needs to be soluble. Facilitated diffusion is similar to diffusion in that it moves a substance down its concentration gradient.

Which of the following conditions would cause an increase in the glomerular filtration rate GFR?

Glomerular filtration is occurs due to the pressure gradient in the glomerulus. Increased blood volume and increased blood pressure will increase GFR. Constriction in the afferent arterioles going into the glomerulus and dilation of the efferent arterioles coming out of the glomerulus will decrease GFR.

When the plasma concentration of a substance exceeds its renal concentration more of the substance will be?

When the plasma concentration of a substance exceeds its renal concentration, more of the substance will be ANSWER: excreted. secreted. reabsorbed. filtered.

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What ions are directly regulated by the kidney?

The kidneys are responsible for maintaining relatively constant levels of key ions including sodium, potassium and calcium.

What are the 4 types of membrane transport?

Basic types of membrane transport, simple passive diffusion, facilitated diffusion (by channels and carriers), and active transport.

What are the three factors that regulate glomerular filtration rate?

Three factors regulate glomerular filtration rate (GFR). These three factors are decrease in systemic blood pressure, normal systemic blood pressure, and increase in systemic blood pressure. The body must maintain homeostasis.

Can drinking water increase GFR?

found increased water intake actually decreases GFR. It might therefore seem that any “toxin” removed purely by glomerular filtration is cleared less efficiently in the setting of increased water intake; however, it is not certain such changes in GFR persist over time.

What are the factors affecting GFR?

We analyzed the factors that are thought to affect changes in GFR, such as age, sex, body mass index (BMI), preoperative GFR, preoperative creatinine level, operated side, presence of diabetes mellitus (DM), presence of hypertension (HTN), and duration of follow-up.

Do kidneys regulate blood pressure?

Healthy kidneys produce a hormone called aldosterone to help the body regulate blood pressure. Kidney damage and uncontrolled high blood pressure each contribute to a negative spiral.

What is the primary route of water loss from the body quizlet?

The primary route for water loss from the body is the system. The primary route for ion loss from the body is the system. You just studied 67 terms!

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Why is inulin the ideal substance for determining GFR?

Urinary inulin clearance is considered the gold standard for measuring GFR because inulin has all the properties of an ideal marker. It is freely filtered by the glomerulus, is not secreted or reabsorbed in the tubules, and is not synthetized or metabolized by the kidney.

Do the kidneys regulate pH?

The kidneys have two main ways to maintain acid-base balance – their cells reabsorb bicarbonate HCO3− from the urine back to the blood and they secrete hydrogen H+ ions into the urine. By adjusting the amounts reabsorbed and secreted, they balance the bloodstream’s pH.

What are the 7 functions of the kidneys?

The 7 functions of the kidneys

  • A – controlling ACID-base balance.
  • W – controlling WATER balance.
  • E – maintaining ELECTROLYTE balance.
  • T – removing TOXINS and waste products from the body.
  • B – controlling BLOOD PRESSURE.
  • E – producing the hormone ERYTHROPOIETIN.
  • D – activating vitamin D.

What is the path of blood through the kidney?

Blood flows into your kidney through the renal artery. This large blood vessel branches into smaller and smaller blood vessels until the blood reaches the nephrons. In the nephron, your blood is filtered by the tiny blood vessels of the glomeruli and then flows out of your kidney through the renal vein.

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