NEET EXAM ( EM ) ONLINE TEST - 8

1.

Identify the substances having glycosidic bond and peptide bond, respectively in their structure

Chitin, cholesterol

Glycerol, trypsin

Cellulose, lecithin

Inulin, insulin

2.

The plant parts which consist of two generations - one within the other

Pollen grains inside the anther

Germinated pollen grain with two male gametes

Seed inside the fruit

Embryo sac inside the ovule

(a) only

(a), (b) and (c)

(c) and (d)

(a) and (d)

3.

The product(s) of reaction catalyzed by nitrogenase in root nodules of leguminous plants is/are

Ammonia alone

Nitrate alone

Ammonia and oxygen

Ammonia and hydrogen

4.

Identify the correct statement with regard to G1 phase (Gap 1) of interphase.

DNA synthesis or replication takes place.

Reorganisation of all cell components takes place.

Cell is metabolically active, grows but does not replicate its DNA.

Nuclear Division takes place

5.

Cuboidal epithelium with brush border of microvilli is found in

Lining of intestine

Ducts of salivary gland

Proximal convoluted tubule of nephron

Eustachian tube

6.

Which of the following statements about inclusion bodies is incorrect?

They are not bound by any membrane

These are involved in ingestion of food particles

They lie free in the cytoplasm

These represent reserve material in cytoplasm

7.

Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells?

Endoplasmic reticulum

Peroxisomes

Golgi bodies

Polysomes

8.

In gel electrophoresis, separated DNA fragments can be visualized with the help of

Acetocarmine in bright blue light

Ethidium bromide in UV radiation

Acetocarmine in UV radiation

Ethidium bromide in infrared radiation

9.

Identify the wrong statement with reference to transport of oxygen

Binding of oxygen with haemoglobin is mainly related to partial pressure of O2

Partial pressure of CO2 can interfere with O2 binding with haemoglobin

Higher H+ conc. in alveoli favours the formation of oxyhaemoglobin

Low pCO2 in alveoli favours the formation of oxyhaemoglobin

10.

Ray florets have

Inferior ovary

Superior ovary

Hypogynous ovary

Half inferior ovary

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