1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alja [10]
3 years ago
11

Transport of materials into a cell against a concentration gradient, from low to high, requires

Biology
2 answers:
horrorfan [7]3 years ago
4 0

protein pumps and energy

Diano4ka-milaya [45]3 years ago
3 0

Answer:

protein pumps and energy

Explanation:

You might be interested in
The pattern of the brain structure differences found in brain imaging studies of the big five personality traits
gulaghasi [49]
Neuroticism,extroversion,openness,
Agreeableness, conscientiousness.
8 0
3 years ago
Mitochondrial DNA is used to follow maternal inheritance and sequences on the Y chromosome is used to follow paternal inheritanc
meriva
I would assume the answer to your question is A. “Because only men have the Y chromosome, so the women i. the class wouldn’t be able to participate.”
4 0
3 years ago
Carbo-
Andre45 [30]

Answer:

fatty acid and lipids

Explanation:

buttons always drop down this is easy kids

8 0
3 years ago
Which cell organelle is most directly involved with the bonding of amino acids?
Archy [21]
The ribosome is involved with the bonding of amino acids
6 0
3 years ago
Which of the following statements best describes the role of hormones in the body? Hormones send chemical signals throughout the
il63 [147K]

Answer:

Hormone production and release are primarily controlled by negative feedback. In negative feedback systems, a stimulus elicits the release of a substance; once the substance reaches a certain level, it sends a signal that stops further release of the substance. In this way, the concentration of hormones in blood is maintained within a narrow range. For example, the anterior pituitary signals the thyroid to release thyroid hormones. Increasing levels of these hormones in the blood then give feedback to the hypothalamus and anterior pituitary to inhibit further signaling to the thyroid gland, as illustrated in Figure 18.14. There are three mechanisms by which endocrine glands are stimulated to synthesize and release hormones: humoral stimuli, hormonal stimuli, and neural stimuli.

Explanation:

Hyperthyroidism is a condition in which the thyroid gland is overactive. Hypothyroidism is a condition in which the thyroid gland is underactive. Which of the conditions are the following two patients most likely to have?

Patient A has symptoms including weight gain, cold sensitivity, low heart rate and fatigue.

Patient B has symptoms including weight loss, profuse sweating, increased heart rate and difficulty sleeping.Humoral Stimuli

The term “humoral” is derived from the term “humor,” which refers to bodily fluids such as blood. A humoral stimulus refers to the control of hormone release in response to changes in extracellular fluids such as blood or the ion concentration in the blood. For example, a rise in blood glucose levels triggers the pancreatic release of insulin. Insulin causes blood glucose levels to drop, which signals the pancreas to stop producing insulin in a negative feedback loop.

Hormonal stimuli refers to the release of a hormone in response to another hormone. A number of endocrine glands release hormones when stimulated by hormones released by other endocrine glands. For example, the hypothalamus produces hormones that stimulate the anterior portion of the pituitary gland. The anterior pituitary in turn releases hormones that regulate hormone production by other endocrine glands. The anterior pituitary releases the thyroid-stimulating hormone, which then stimulates the thyroid gland to produce the hormones T3 and T4. As blood concentrations of T3 and T4 rise, they inhibit both the pituitary and the hypothalamus in a negative feedback loop.

3 0
3 years ago
Other questions:
  • Daphnia are freshwater organisms sometimes referred to as “water fleas.” Design an experiment that
    10·2 answers
  • What is the cardiovascular system also known as ?
    9·1 answer
  • What two parts of the brain are most involved in explicit memory?
    7·1 answer
  • 31. Which process is used to produce beer and wine?
    8·1 answer
  • How do flowering plants reproduce by fertilization if they are immotile?
    5·1 answer
  • The male reproductive system is most closely associated with
    11·1 answer
  • Description of atleast 3-5 sentences defining conduction
    5·1 answer
  • What does the word biomass refer to?
    14·1 answer
  • In photosynthesis, chlorophyll traps _____.
    5·2 answers
  • 2. How is primary succession different from secondary
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!