Cell-The Unit Of Life Flashcards by Dhruv Bhagat

Q

Who discovered dead plant cell?

A

Robert Hooke - Micrographia

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Q

Who discovered first living cell?

A

Anton Von Leewenhoek

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Q

Cell theory was given by

A

Mathhias Schleiden and Theodore Schwann

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Q

Nucleus of prokaryotic cell

A

Double stranded circular DNA/Genophore/False nucleus

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Q

Nucleus of eukaryotic cell

A

Double stranded linear DNA

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Q

Size of an RBC

A

7µm

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Q

Size of mycoplasma

A

0.3 µm

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Q

Size of a virus

A

0.02-0.2 µm

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Q

Solid part of cytoplasm is known as

A

Trophoplasm

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Q

Who discovered cell wall

A

Robert Hooke

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Q

In fungi, cellulosic cell wall occours in

A

Oomycetes

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Q

What is middle lamella made up of

A

Calcium and magnesium pectate

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Q

Who makes suberin and cutin ?

A

Sphreosome

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Q

Where is tertiary cell wall found?

A

Tracheid of gymnosperms

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Q

What is the nature of cell membrane?

A

Quasifluid

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Q

Which water pathway does plasmodesmata support?

A

Symplast

Q

What is the nature of phospholipids?

A

Amphipathic

Q

Which substance is abundant in middle lamella?

A

Calcium pectate

Q

Where does lignin originate from?

A

Golgi body( dictyosomes)

Q

What is cutin made up of?

A

Lipid

Q

What is pectin and hemicellulose made up of?

A

Carbohydrates

Q

Where does lignification occour?

A

Secondary cell wall

Q

What is tertiary cell wall made up of?

A

Xylan and hemicellulose

Q

Where does suberization happen?

A

Middle lamella

Give three names for cell membrane

Plasma lemma, biomembrane and plasma membrane