Transportation in Animals and Plants

The average pulse rate of a human being is

1. 70 beats per minute
2. 72 beats per minute
3. 82 beats per minute
4. 92 beats per minute

Pure oxygenated blood is pumped from the

1. left atrium
2. right ventricle
3. right atrium
4. left ventricle

The food is transported in the phloem in the form of

1. glucose
2. sucrose
3. amino acids
4. fats

The normal blood pressure in humans is

1. 80/120 mmHg
2. 120/80 mmHg
3. 120/100 mmHg
4. 100/80 mmHg

Pulse rate can be measured by feeling a person's

1. nerve
2. artery
3. capillary
4. vein

The largest size of cell present in the blood is

1. RBC
2. WBC
3. platelets
4. plasma

Loss of water in plants occurs through

1. stem
2. leaves
3. roots
4. flowers

The main organ of excretory system in human body is

1. lungs
2. heart
3. liver
4. kidney

In desert plants, photosynthesis is a function of

1. stem
2. leaves
3. roots
4. fruits

Match: Haemoglobin - RBC, Atria - heart, Root hairs - absorption of water, Sweat - contains water and salt

1. A-(iii), B-(iv), C-(ii), D-(i)
2. A-(i), B-(iv), C-(ii), D-(iii)
3. A-(iii), B-(iv), C-(i), D-(ii)
4. A-(ii), B-(iii), C-(iv), D-(i)

Heart is provided with four chambers; purpose of this is

1. to collect only oxygen rich blood
2. to collect only carbon-dioxide rich blood
3. to prevent intermixing of oxygen rich and carbon-di-oxide rich blood
4. All are correct

Aquatic animals like fishes excrete their waste products in the form of ammonia gas because

1. they inhale a lot of air
2. ammonia directly dissolves in water
3. they do not have kidneys
4. All of the above

Pulmonary artery carries impure blood rich in carbon-di-oxide, even then it is called an artery, because

1. It carries blood from lungs to heart
2. It carries blood from heart to lungs
3. It has valves
4. All of the above

Blood appears red due to presence of

1. platelets
2. haemoglobin
3. plasma
4. all of these

The suction force that pulls water, absorbed by roots, to great heights in tall trees, is generated by

1. respiration
2. transpiration
3. both a and b
4. none of these

Blood filtration performed periodically with the help of an artificial kidney is

1. dialysis
2. circulation
3. respiration
4. excretion

Blood vessels which carry oxygen rich blood from heart to all parts of the body have .............. walls.

1. thin
2. thick
3. no
4. double

Kidneys, ureters, urinary bladder and urethra are main .............. organs in human-beings.

1. excretory
2. circulatory
3. digestive
4. sense

Pumping-organ present in our body is

1. kidney
2. heart
3. liver
4. lung

Main excretory product of birds and some reptiles like lizards, snakes, etc, is

1. urine
2. ammonia
3. uric acid
4. urea

Cells present in blood, which fight against germs and protect our body from various infections are called

1. R.B.C (Red blood cells)
2. W.B.C. (white blood cells)
3. Both
4. None

Removal of toxic wastes from our body is called

1. respiration
2. circulation
3. excretion
4. None of the above

The walls of the chambers of heart are made up of muscles. During heartbeat these muscles

1. contract
2. relax
3. do not function
4. both contract and relax

Arteries and veins are joined by a network of

1. Valves
2. Muscles
3. Capillaries
4. Bones

During an injury blood starts flowing out of cut or wound. After sometime a clot is formed on wound, by

1. R.B.C (Red blood-cell)
2. W.B.C. (White blood-cell)
3. Platelets
4. Haemoglobin

Plants lose a lot of water through stomata, in the form of water-vapour, because of

1. transportation
2. transpiration
3. respiration
4. All of the above

The lower chambers of human-heart are called

1. atria
2. ventricles
3. arteries
4. veins

Pulmonary vein carries

1. Oxygen-rich blood
2. Carbon-rich blood
3. Carbon-di-oxide rich blood
4. All of the above

The fluid part of the blood is called

1. RBC
2. WBC
3. Haemoglobin
4. Plasma

The vascular-tissues which transport water, nutrients and food in plants are

1. xylem
2. phloem
3. both xylem and phloem
4. None of these

In our body, oxygen from lungs and digested food from intestine is transported to all other parts of body, by

1. skin
2. brain
3. blood
4. water

The waste material excreted by kidneys, in liquid form is called

1. ammonia
2. urine
3. urea
4. All of the above

Transport of waste material, food and oxygen, within the body of lower animals like hydra and sponges is carried out by

1. Blood
2. Water
3. Air
4. All

Valves, to direct the flow of blood only in one direction, are present in

1. arteries
2. veins
3. capillaries
4. All of the above

Red coloured pigment which binds oxygen and carry it to all parts of the body is called

1. RBC
2. WBC
3. Platelets
4. Haemoglobin