Life Science MCQ » Chemistry-Papers

Carbohydrates in the humans are stored in the form of

Maltose

Glycogen

Starch

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

Adenosine triphosphate

Pyruvate

Glucose

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

Saprotrophs

Herbivores

Parasites

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

Xylem

Vacuoles

Stomata

Select the set of organisms showing holozoic nutrition

none of these

Human, amoeba, bird

Amoeba, mushroom, human

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

Starch breaking down into sugars.

Proteins breaking down into amino acids.

Fats breaking down into fatty acids and glycerol.

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

Nutrition

Respiration

Excretion

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

Pancreatic juice- Pepsin, salivary amylase, trypsin

Gastric juice- Pepsin, HCl, Mucous

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

Photo autotrophic

Chemo autotrophic

Heterotrophic

Which of the following is an example of parasitic plant?

Palm tree

Cuscuta (Amar bel)

Money plant

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

Digestive canal

Alimentary canal

Oesophagus

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

Carbon dioxide

Nitorgen

Oxygen

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

Pharynx

Alveoli

Bronchi

Plants absorbs Nitrogen from soil in form of

(B) Nitrite

(A) Nitrate

Breathing organs in fishes

Skin

Lungs

Gills

Which part of the alimentary canal absorbs the digested food?

Pancreas

Liver

Villi in Small intestine

Which of the following pair is incorrect?

Paramoecium - autotrophic nutrition

Humans - holozoic nutrition

Yeast - saprophytic nutrition

Salivary glands are located in

Buccal cavity

Stomach

none of these

Glycolysis process occurs in which part of the cell?

Mitochondria

Cytoplasm

Chloroplast

Select the correct chemical formula of glucose

C5H12O6

C6H12O5

C6H12O6

Rings of cartilage are found associated with

Alveoli

Trachea

Bronchi

Diaphragm is a--

blood cell

muscle

bone

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

peristaltic movement

translocation

digestion

During inhalation, Diaphragm moves--

Upwards

Both

Downwards

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

Pitutary gland

Liver

Pancreas

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

None of these

Excess of carbon dioxide

Lack of oxygen

The correct sequence of anaerobic respiration in Yeast

glucose → pyruvate → carbon dioxide + ethanol + energy

glucose → pyruvate → ADP → lactic acid

Glucose → pyruvate → lactic acid

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

hydrogen

CO2

Oxygen

The enzymes pepsin and trypsin are secreted respectively by

Salivary gland and stomach

Stomach and pancreas

Liver and salivary gland

Which of the following animal will have shortest small intestine?

Human

Goat

Tiger

In amoeba, oxygen is taken up by:

Diffusion

Specialised tissues

Osmosis

Which of the following enzymes are present in pancreatic juice?

Both (A) and (B)

(B) Lipase

(A) Trypsin

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

Heterotrophic animal

None of these

Photosynthetic bacteria

Bile is stored in –

Gall bladder

Liver

Pancreas

Which of the following statement is true about stomata?

All of the above

Stomatal pore is surrounded by kidney shaped guard cell

Stomata helps in exchange of gases during photosynthesis

Carbohydrates in the humans are stored in the form of

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

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

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

Select the set of organisms showing holozoic nutrition

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

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

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

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

Which of the following is an example of parasitic plant?

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 gas is majorly released by plants during day time?

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

Plants absorbs Nitrogen from soil in form of

Breathing organs in fishes

Which part of the alimentary canal absorbs the digested food?

Which of the following pair is incorrect?

Salivary glands are located in

Glycolysis process occurs in which part of the cell?

Select the correct chemical formula of glucose

Rings of cartilage are found associated with

Diaphragm is a--

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

During inhalation, Diaphragm moves--

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

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

The correct sequence of anaerobic respiration in Yeast

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

The enzymes pepsin and trypsin are secreted respectively by

Which of the following animal will have shortest small intestine?

In amoeba, oxygen is taken up by:

Which of the following enzymes are present in pancreatic juice?

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

Bile is stored in –

Which of the following statement is true about stomata?

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