Life Science MCQ » Chemistry-Papers

Which of the following gas is majorly released by plants during day time?

Carbon dioxide

Oxygen

Nitorgen

Which of the following animal will have shortest small intestine?

Goat

Tiger

Human

By which life process living organisms such as humans remove nitrogenous waste from their blood

Respiration

Nutrition

Excretion

During inhalation, Diaphragm moves--

Both

Downwards

Upwards

Rings of cartilage are found associated with

Alveoli

Bronchi

Trachea

Breathing organs in fishes

Lungs

Skin

Gills

Which digestive juice is secreted by stomach and what it contains?

Pancreatic juice- Pepsin, salivary amylase, trypsin

Gastric juice- Pepsin, HCl, Mucous

During vigorous physical exercise, lactic acid is formed from glucose inside the muscle cells due to-

Excess of carbon dioxide

Lack of oxygen

None of these

Select the set of organisms showing holozoic nutrition

none of these

Human, amoeba, bird

Amoeba, mushroom, human

Diaphragm is a--

blood cell

bone

muscle

Which part of the alimentary canal absorbs the digested food?

Liver

Pancreas

Villi in Small intestine

The rhythmic contraction and relaxation of the walls of the food pipe is called

digestion

translocation

peristaltic movement

Salivary glands are located in

Stomach

Buccal cavity

none of these

Which of the following group of organisms derive nutrition from dead and decaying matter

Parasites

Herbivores

Saprotrophs

Which of the following respiratory organ is the site of exchange of gases in humans?

Pharynx

Bronchi

Alveoli

Which of the following pair is incorrect?

Humans - holozoic nutrition

Yeast - saprophytic nutrition

Paramoecium - autotrophic nutrition

Select the correct chemical formula of glucose

C6H12O5

C5H12O6

C6H12O6

Glycolysis process occurs in which part of the cell?

Chloroplast

Mitochondria

Cytoplasm

The enzymes pepsin and trypsin are secreted respectively by

Liver and salivary gland

Salivary gland and stomach

Stomach and pancreas

Which of the following type of nutrition is shown by fungi?

Photo autotrophic

Heterotrophic

Chemo autotrophic

Human digestive system consist of a long hollow tube which starts from mouth and ends at anus. It is known as

Alimentary canal

Digestive canal

Oesophagus

Which of the following events in the mouth cavity will be affected if salivary amylase is absent in the saliva?

Fats breaking down into fatty acids and glycerol.

Proteins breaking down into amino acids.

Starch breaking down into sugars.

Bile is stored in –

Liver

Pancreas

Gall bladder

Which of the following is an example of parasitic plant?

Cuscuta (Amar bel)

Money plant

Palm tree

Blue green algae is a type of---------

None of these

Heterotrophic animal

Photosynthetic bacteria

Which of the following statement is true about stomata?

Stomatal pore is surrounded by kidney shaped guard cell

All of the above

Stomata helps in exchange of gases during photosynthesis

Which gas is produced as a by product during the process of photosynthesis

Oxygen

CO2

hydrogen

Which of the following enzymes are present in pancreatic juice?

(A) Trypsin

Both (A) and (B)

(B) Lipase

In amoeba, oxygen is taken up by:

Specialised tissues

Diffusion

Osmosis

Which of the following is the largest gland and also plays a major role in digestion

Liver

Pitutary gland

Pancreas

Plants absorbs Nitrogen from soil in form of

(B) Nitrite

(A) Nitrate

Carbohydrates in the humans are stored in the form of

Starch

Maltose

Glycogen

Which one of the following is known as energy currency of cell?

Adenosine triphosphate

Glucose

Pyruvate

Name the pores in a leaf through which respi-ratory exchange of gases takes place.

Stomata

Vacuoles

Xylem

The correct sequence of anaerobic respiration in Yeast

Glucose → pyruvate → lactic acid

glucose → pyruvate → carbon dioxide + ethanol + energy

glucose → pyruvate → ADP → lactic acid

Which of the following gas is majorly released by plants during day time?

Which of the following animal will have shortest small intestine?

By which life process living organisms such as humans remove nitrogenous waste from their blood

During inhalation, Diaphragm moves--

Rings of cartilage are found associated with

Breathing organs in fishes

Which digestive juice is secreted by stomach and what it contains?

During vigorous physical exercise, lactic acid is formed from glucose inside the muscle cells due to-

Select the set of organisms showing holozoic nutrition

Diaphragm is a--

Which part of the alimentary canal absorbs the digested food?

The rhythmic contraction and relaxation of the walls of the food pipe is called

Salivary glands are located in

Which of the following group of organisms derive nutrition from dead and decaying matter

Which of the following respiratory organ is the site of exchange of gases in humans?

Which of the following pair is incorrect?

Select the correct chemical formula of glucose

Glycolysis process occurs in which part of the cell?

The enzymes pepsin and trypsin are secreted respectively by

Which of the following type of nutrition is shown by fungi?

Human digestive system consist of a long hollow tube which starts from mouth and ends at anus. It is known as

Which of the following events in the mouth cavity will be affected if salivary amylase is absent in the saliva?

Bile is stored in –

Which of the following is an example of parasitic plant?

Blue green algae is a type of---------

Which of the following statement is true about stomata?

Which gas is produced as a by product during the process of photosynthesis

Which of the following enzymes are present in pancreatic juice?

In amoeba, oxygen is taken up by:

Which of the following is the largest gland and also plays a major role in digestion

Plants absorbs Nitrogen from soil in form of

Carbohydrates in the humans are stored in the form of

Which one of the following is known as energy currency of cell?

Name the pores in a leaf through which respi-ratory exchange of gases takes place.

The correct sequence of anaerobic respiration in Yeast

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