Answer: A) a nucleus
Explanation: The largest amount of DNA in a plant cell is contained in a nucleus.
Answer:
The different skeletal muscle fiber types vary in the speed and duration of their twitches due to -
b) They vary in the rate of hydrolysis of ATP
c) They vary in the removal of Ca+ from the cytosol
Explanation:
There are mainly two types of muscle fibers , i.e.
a) slow twitching, long contraction duration( type I fibers)
b) First twitching but short duration of contraction. ( type II fibers).
Now think of the physiology of muscle. Two components are important, cytosolic Ca++ concentration and Availability of ATP. K+ is related to the action potential ( none or all law, there is no relation to the duration with respect to the potassium). For long contraction muscle fibers need a more steady supply of ATP, and also consistent high concentration of cytosolic Ca++ for muscle contraction to happen. So, these two factor is important for the duration of twitching. So the answer is option f .
Answer:
yes it is hard but it gets easier with time and lots of studying
Explanation:
universities depend on what ypu and afford and how far you can travel
Placing of the hand above the chest is the first step while administering CPR after ensuring that the environment is safe.
When the heart stops beating, CPR, or cardiopulmonary resuscitation, is a life-saving emergency operation. After cardiac arrest, immediate CPR can increase survival rates by a factor of two to three.
A person's heartbeat will cease if they are not breathing. To aid with circulation and to assist the body to receive oxygen, use CPR (chest compressions and rescue breaths). Following are the steps of CPR:
- Placing of the hand above the chest.
- Interlocking of fingers.
- Giving chest compressions.
- Opening of the airway.
- Delivering rescue breathes.
- Watching the patient's chest fall.
- Repeat steps 3 and 4.
Learn more about CPR here,
brainly.com/question/25011455
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Answer:
Out of the four given statements, the false statement is
option d)
Explanation:
a) Muscle mass and hence water content is greater in males than in females
b) Transcellular fluid is the portion of total water content in the body which is contained within the lined spaces of epithelial tissue. It is a part of the extracellular fluid which includes plasma and lymph can also be considered as tanscellular fluid.
c) Na+ and Cl- are the major content of extracellular fluids
d) About 60% of water inside the body is contained within extracellular and not in intra cellular.
