Life Processes Test

Result

Life Processes Test - 10

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

What is the main job of the red corpuscles in the blood?

A
To clot blood

B
To transport oxygen to the body's cells and carry away carbon dioxide from the cells

C
To purify the blood

D
To fight diseases

Solution

The red corpuscles get the needed oxygen to the body's cells. They also carry away the carbon dioxide that cells give off during the chemical reaction that takes place as the cells use oxygen.
Question 2
1 / -0

The normal systolic pressure is about ______ of Hg and diastolic pressure is _______ of Hg.

A
80 mm, 120 mm

B
20 mm, 80 mm

C
120 mm, 80 mm

D
80 mm, 100 mm

Solution

Blood pressure is measured using two numbers.

The first number, called systolic blood pressure, measures the pressure in the blood vessels when the heart beats.

The second number, called diastolic blood pressure, measures the pressure in the blood vessels when the heart rests between beats.

The normal blood pressure measurement reads 120 systolic and 80 diastolic.
Question 3
1 / -0

What would happen to people who have an open wound and whose blood cannot clot naturally?

A
They may bleed to death.

B
Nothing. Clotting is not important.

C
They would have to take regular doses of plasma.

D
They would have to take regular doses of platelets.

Solution

Clotting prevents an organism from bleeding out. A person who cannot clot may die but does not necessarily bleed to death because there are drugs to help treat such a condition.
Question 4
1 / -0

Why is blood that flows from the lungs to the heart bright red rather than dark red?

A
Oxygen makes it red

B
Gastric juices make the blood red

C
Carbon Dioxide makes it red

D
The lungs add a pigment to the blood to make it red.

Solution

As soon as oxygen in the lungs enters the blood flowing through the walls of the lungs, the blood turns bright red. This colour changes happens because of haemoglobin, to which oxygen binds.
Question 5
1 / -0

Lymph is similar to blood plasma in composition, except for being much lower in _____.

A
Blood

B
Proteins

C
Water

D
RBCs

Solution

Blood plasma is the liquid part of blood, always contained in blood vessels. Lymph is the fluid contained in lymphatic vessels. Lymph is similar to blood plasma in composition, except for being much lower in protein.