Tag: transportation in animal and plants

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Questions Related to transportation in animal and plants

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

Blood pressure and heart beat is regulated by

  1. Insulin

  2. Adrenalin

  3. Optic nerve

  4. Growth hormone
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Epinephrine (adrenaline) and norepinephrine (noradrenaline) is a neurotransmitter which regulates the contraction and relaxation of the heart. The effect of adrenalin is known as the fight-or-flight response. It increases the heart beat.

So, the correct answer is option B.

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

In a normal man, blood pressure is

  1. 120/80mm of Hg

  2. 80/100 mm of Hg

  3. 80/120 mm of Hg

  4. 100/80 mm of Hg
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Blood pressure is defined as the pressure applied by the blood on the walls of arteries and veins during circulation. The instrument used is called a sphygmomanometer, and two variables are measured:
1. Systolic pressure, which occurs during heart muscle contraction, averages around 120 and is expressed in millimeters of mercury (mm Hg).
2. Diastolic pressure, which occurs during relaxation of the heart muscle, averages around 80 mm Hg.

So, the correct answer is option A.

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

Sphygmomanometer measures

  1. Blood pressure

  2. Pulse rate

  3. Rate of heart beat

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Blood pressure is the pressure exerted by the flowing blood on the elastic walls of arteries. Blood pressure is measured in two stages- systolic and diastolic. The instrument by which we can measure blood pressure is called sphygmomanometer. In humans, the blood pressure is measured in the brachial artery.

So, the correct answer is option A.

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

Systolic pressure is higher than diastolic pressure due to

  1. Volume of blood in the heart is greater during systole

  2. Arteries contract during systole

  3. Blood vessels offer resistance to flowing blood during systole

  4. Blood is forced into arteries during systole
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Blood pressure is the pressure applied on the arteries and veins during the circulation. The instrument used is called a sphygmomanometer and two variables are measured as follows
1. Systolic pressure, which occurs during heart muscle contraction which forces blood into arteries, averages around 120mmHg and is expressed in millimeters of mercury (mm Hg).
2. Diastolic pressure, which occurs during relaxation of the heart muscle, averages around 80 mm Hg.

So, the correct answer is option D.

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

The value of diastolic blood pressure is

  1. 120 mm Hg

  2. 80 mm Hg

  3. 120/80 mg Hg

  4. 40 mg Hg
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hypertension is the term for blood pressure that is higher than normal (120/80). In this measurement, 120 mm Hg (millimeters of mercury pressure) is the systolic, or pumping pressure and 80 mm Hg is the diastolic, or resting, pressure.

So, the correct answer is option B.

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

Arterial blood pressure in human beings

  1. 120 and 80 mm Hg

  2. 150 and 100 mm Hg

  3. 50 and 100mm Hg

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Normal resting blood pressure or arterial blood pressure for an adult human being is about 120/80 mm Hg. Blood pressure is summarized by two measurements, systolic and diastolic, which depend on whether the heart muscle is contracting (systole) or relaxed between beats (diastole).

So, the correct answer is option A.

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

In normal blood pressure of 120/80 mm Hg, the numerator presents

  1. Pulse pressure

  2. Cardiac index

  3. Systolic pressure

  4. Diastolic pressure
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A healthy blood pressure reading should be lower than 120/80 mm Hg. Normal blood pressure is less than 120 mm Hg systolic and 80 mm Hg diastolic, and may vary from 90/60mm Hg to 120/80mm Hg in a healthy young woman. A blood pressure of 140/90 mmHg or higher indicates high blood pressure.

So, the correct option is 'Systolic pressure'.

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

The instrument by which B.P. of man is determined is 

  1. Sphygmomanometer

  2. Cardiograph

  3. Ultrasound

  4. Stethoscope
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Blood pressure is regulated by the amount of water and salts. It is regulated by hormones secreted by the adrenal gland. Aldosterone regulates a number of salts and water in the blood. The fluctuation in the blood pressure is measured by Sphygmomanometer. It was invented by Samuel Siegfried Karl Ritter von Basch in 1881. Hence, the correct answer is option A.