The tail of the phospholipid molecule:

1. is hydrophilic and composed of phosphate

2. is hydrophilic and composed of saturated hydrocarbons

3. is hydrophobic and composed of saturated hydrocarbons

4. is hydrophobic and composed of unsaturated hydrocarbons

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In animal cells, lipid-like steroidal hormones are synthesized in the:

1. Nucleus

2. Rough endoplasmic reticulum

3. Smooth endoplasmic reticulum

4. Golgi apparatus

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Unless specifically stained by a vital stain like Janus Green, which of the following will not be visible under a microscope?

1. Rough endoplasmic reticulum

2. Smooth endoplasmic reticulum

3. Golgi apparatus

4. Mitochondria

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Fat soluble pigments like xanthophylls are present in:

1. Chromoplasts

2. Aleuroplasts

3. Elaioplasts

4. Amyloplasts

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Proteins that are to be used outside the cell are synthesized:

1. in the mitochondria

2. on the rough endoplasmic reticulum

3. on the smooth endoplasmic reticulum

4. on free ribosomes

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The two types of cellular organelles that transform energy are:

(1) Chromoplasts and Leucoplasts

(2) Mitochondria and Chloroplasts

(3) Mitochondria and Endoplasmic reticulum

(4) Chloroplasts and Golgi apparatus

 

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The arrangement of outer and central microtubules in a cilium is called the:

1. 9 + 1 pattern

2. 9 + 0 pattern

3. Flagellin pattern

4. 9 + 2 pattern

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Which of the following structure is not found in a prokaryotic cell?

(1) Nuclear envelope

(2) Ribosome

(3) Mesosome

(4) Plasma membrane

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Pigment-containing extensions in some cyanobacteria are

(1) heterocysts

(2) basal bodies

(3) pneumatophores

(4) chromatophores

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Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?

(a) Bacillus

(b) Pseudomonas

(c) Mycoplasma

(d) Nostoc

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