Question
Differentiate between:
Arteries and Veins.

Answer

Arteries Veins
These carry blood from the heart to different organs of the body. These collect blood from different organs of the body.
These contain oxygenated blood (Pulmonary artery contains deoxygenated blood) These contain deoxygenated blood. (Pulmonary vein contains oxygenated blood).
Blood flows rapidly with jerks under
pressure.
Blood flows slowly at a constant slow speed.
The walls are thick and elastic. The walls are thin and non-elastic.
Valves are absent. Valves are present.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Our resources cannot keep pace with the ever increasing population. Give three examples in support of this statement.
Differentiate between the followig
Renal cortex and Medulla
The diagram given below is of an experiment just at the start. Study the diagram carefully and answer the following questions :

(i) What does the experiment demonstrate?
(ii) Define, the process demonstrated in the experiment.
(iii) What changes are observed after a few hours?
(iv) Give two examples of a semi-permeable membrane.
(v) Which limb of the U-tube contains a more concentrated sucrose solution, A or B?
(vi) Why is the membrane separating the two solutions labeled as semi-permeable membrane?
Why do plants absorb more water than what is required by them? Give three uses of this phenomenon.
Look at the given picture and answer the questions:

Image
(i) Name the tropic movement shown by the seedling.
(ii) Name the stimulus responsible for this movement.
(iii) Define the process shown by the seedling.
Write short note on the following:
Hydathodes
The apparatus shown here is Ganong's photometer designed to demonstrate unequal transpiration from the two surfaces of a dorsiventral leaf. Before keeping the leaf in between the cups, anhydrous calcium chloride ($CaCl_2$​​​​​​​​​​​​​​) contained in two small vials were weighted and placed in both the cups. The ends of the cups were weighted and with corks through which two mercury manometers were connected. After a few hours, $CaCl_2​​​​​​​$​​​​​​​​​​​​​​vials were taken out and weighed again.
(i) What is the purpose of keeping $CaCl_2​​​​​​​$​​​​​​​vials inside the cup?
(ii) After a few hours, $CaCl_2​​​​​​​$​​​​​​​vials were taken out and weighed again.
will you except any difference in weight? If so, give reasons.
(iii) What was expect the purpose of using a manometer?
(iv) What do you mean by transpiration?
Differentiate between the following:
Auxins and Gibberellins
Given below is the diagram of the human ear. Study the same and answer the questions that follow:

Image
(i) Give the biological term for the part labelled 'A' and state its function.
(ii) Name the part labelled 'B' and state its function.
(iii) Name the part labelled ' $C$ ' and state its function.
What are the general properties of hormones?