Science True-False

Transpiration helps to create osmotic pressure for translocation of sucrose. State whether this sentence true or false.

The body temperature is maintained by using energy in animals of classes Mammalia and Aves.

Blood is a red coloured, non-living liquid connective tissue.

The phloem tissue transports carbohydrate, amino acids and plant hormones.

In plants, the conduction of water is in both upward and downward directions.

The pulmonary arteries carry oxygenated blood.

The wall of the blood capillaries is bilayered and thick.

In certain plants, the useless waste substances are stored in cellular vacuoles.

The blood vessels absorb fat through the villi of the ileum.

In unicellular animals, the excretory substances are removed by diffusion in the surrounding water.

The blood flows from the heart to other organs under pressure.

The rate of breathing in terrestrial animals is much faster than that seen in aquatic animals.

Cuscuta is a plant, harmful for the host plant.

The inner wall of the stomach possesses tubular glands which secrete gastric juice.

The diaphragm bends (moves) downwards at the time of expiration.

The bronchus ends in the alveolus.

An artificial kidney is a device to remove nitrogenous wastes from the blood through dialysis.

The enzymes pepsin and trypsin digest carbohydrates and fats respectively.

Cilia help in ingestion of food in paramoecium.

The cellulose in the cells of grass, can be digested by herbivores animals.

The liver secretes acidic bile.

Liver and pancreas produce digestive juices which help in digestion in small intestine.

The control and regulation of the opening and closing of stomata is done by the chloroplasts.

In photosynthesis the carbon dioxide is oxidized to form carbohydrates.

In human body the carbohydrates are stored in the form of glycogen.

Euglena is an autotrophic animal.