Blood Pressure

Q. What is a pulse?

Q.

Do hormonal changes cause low blood pressure?

Q.

Describe the internal structure of the human kidney.

Q.

What is meant by 'systolic pressure' and 'diastolic pressure' ? What are their normal values ?

Q.

If the blood pressure is measured as 120/80 mm of Hg, the term 120 refers to

1. Heartbeat rate

2. Pulse rate

3. Diastolic pressure

4. Systolic pressure

Q.

Explain the process of osmoregulation.

Q.

How does vasoconstriction increase blood pressure?

Q.

Which of the following statements is false?

1. Mg²+ ions form a complex with ATP

2. Ca²+ ions are important in blood clotting

3. Ca²+ ions are not important in maintaining the regular beating of the heart

4. Mg²+ ions are important in the green parts of the plant

Q.

Differentiate between the modes of excretion including excretory products, examples, and processes.

Q.

What is lymphatic system? Discuss its importance.

Q.

What is hypertension ? Why is it caused ? What harm can it do ?

Q.

How are animals classified on the basis of their excretory products?

Q.

How do I know if my pancreas is inflamed?

Q.

The xylem in plants are responsible for

1. Transport of water

2. Transport of food

3. Transport of amino acid

4. Transport of oxygen

Q. What substance/substances are transported in plants by:​

(a) xylem vessels and tracheids?​ ​

Q.

How is abnormal gain calculated?

Q.

Which of these statements is correct regarding blood pressure?

1. 105/50 mmHg makes one very active.

2. 130/90 mmHg is considered high and requires treatment.

3. 190/110 mmHg is considered dangerous and may harm vital organs like the heart, brain etc.

4. 100/55 mmHg is considered an ideal blood pressure.

Q.

In human body, heart is located on the ---------- side of the chest cavity.

Q. Name the two main lymphatic organs in humans.

Q.

Question 5
If salivary amylase is lacking in the saliva, which of the following events in the mouth cavity will be affected?

(a) Proteins breaking down into amino acids
(b) Starch breaking down into sugars
(c) Fats breaking down into fatty acids and glycerol
(d) Absorption of vitamins

Q. What is lymph? Write its function.

Q.

Why does our heart stops for a while when we sneeze ?

Q. What is the relation between and organism being poikilothermic or homeothermic and the mixing of oxygenated and deoxygenated blood?

Q. The trachea has incomplete C-shaped rings of _________ which prevent the tracheal walls from collapsing.​

1. cartilage
2. muscle
3. bone

Q. Where are the following located? (i) Tricuspid valve

Q.

(a) What is the lymphatic system? What are its functions?
(b) What is blood pressure? What are the two factors used to express the blood pressure of a person?
(c) Name the main nitrogenous waste in the human blood. How is it removed from the blood?

Q.

Name the following

(i) The part inside the heart that initiates heartbeat.

(ii) The structure that holds the heart valves in position.

Q. (ii) Ventricles give rise to two large blood vessels called and

Q. State which of the following statements are True:

(i) Process of coagulation starts with the release of substance from RBCs.

Q.

Movement of water in the plant body takes place through

1. Xylem

2. Vascular tissues

3. Phloem

4. Stomata