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
Inga [223]
3 years ago
11

How does the heart provide energy to the body ?

Biology
1 answer:
worty [1.4K]3 years ago
7 0

Answer:

The heart is an amazing organ. It pumps oxygen and nutrient-rich blood throughout your body to sustain life. This fist-sized powerhouse beats (expands and contracts) 100,000 times per day, pumping five or six quarts of blood each minute, or about 2,000 gallons per day.

Fatty acids are the heart's main source of fuel, although ketone bodies as well as lactate can serve as fuel for heart muscle. In fact, heart muscle consumes acetoacetate in preference to glucose.

You might be interested in
NAD is a(n):___________
madreJ [45]

Answer: Nicotinamide adenine dinucleotide (NAD; also occasionally written diphosphopyridine nucleotide, DPN) (figure 1) is the coenzyme* form of vitamin B3 (niacin; nicotinic acid; niacinamid

Explanation:

Hope it helps you

8 0
3 years ago
Read 2 more answers
Which structure in a cell coordinates the production of microtubules used in meiosis?
AleksAgata [21]
Mitotic Spindle is structure in a cell coordinates the production of microtubules used in meiosis. It is a football-shaped structure formed of microtubules and concerted proteins which is involved in the movements during mitosis and meiosis.
3 0
4 years ago
In a cross between two strains that are true breeding for purple and white flowers, the F2 phenotypic ratio would be ¼ purple, ¼
IgorC [24]

Answer:

The answer is true.

Explanation:

True breeding for purple and white means that they are homozygous for that phenotype, for example AA is genotype for purple, while aa is genotype for white. Aa is heterozygous and it represents incomplete dominance phenotype. If we cross true breeding for purple and white:

P: AA x  aa

F1: Aa Aa Aa Aa (all of them are with incomplete dominance color)

F2 (Aa x Aa):  AA Aa Aa aa (1/4  1/2  1/4)

3 0
3 years ago
The hero has something that sets her apart from others at the beginning. * A. The Temptation B. Crossing the Threshold C. An Unu
musickatia [10]

Answer: c

Explanation: you can notice she is special unlike others she has something unic. btw this belongs to inglish clas not biology sorry to break it up to you

4 0
3 years ago
Read 2 more answers
How might retaining too much heat be a disadvantage to an organism?
Ierofanga [76]

Answer:

<u>Too much heat can disrupt subcellular structures such as membrane proteins, and enzymes while damaging the integrity of the plasma membrane.</u>

Explanation:

Proteins are macromolecules made up of amino acids. These fold and bond to form several biologically important molecules. For instance, enzymes, a special type of protein functions by <em>providing alternative reaction pathways. They work best at a specific pH and </em><em>optimal temperature range</em><em>, beyond which they become non-functional  or denatured entirely. </em>

The denaturing of proteins occur at high temperatures, and alter protein folding, bonding and other types of behavior. Furthermore, membrane proteins are  important for regulating cell function. If these are disrupted, the system cannot maintain homeostasis i.e a constant internal environment.

4 0
3 years ago
Other questions:
  • What can you infer about the growth of the seed type pictured in the graphs below?5% light80% light100Time (days)4 5123 3Time (d
    12·2 answers
  • A base sequence reads AAGTCG before a mutation. Which could be the base after a frameshift mutation occurs?
    14·2 answers
  • Why do scientists examine chromosomes?
    7·1 answer
  • Most bryophytes, such as mosses, differ from all other plants in that they _____. see concept 29.3 (page 626)
    12·1 answer
  • Ruben has a new puppy named Paddington and wants to feed him the best possible food. Hedecides on an experiment where he will fe
    14·1 answer
  • Which pair of nitrogenous bases will form a bond in a DNA molecule? *
    6·1 answer
  • The simple structure of prokaryotes allows them to
    8·2 answers
  • A student is using a microscope to observe samples taken from pond water. She notices something that she thinks may be a living
    13·1 answer
  • Which of these is the dependent variable?
    12·2 answers
  • Describe how cancer cells are different from other cells. Based on these differences, explain why cancer has been such a difficu
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!