Which of the following scientists proposed the cell theory?

1

(a)

Robert Brown

(b)

Leeuwenhoek

(c)

Schleiden and Schwann

(d)

Schleiden, Schwann and Virchow

Which of the following is not part of endomembrane system?

1

(a)

Endoplasmic Reticulum

(b)

Mitochondria

(c)

Lysosome

(d)

Golgi Body

Which of the following is part of endomembrane system?

1

(a)

Mitochondria

(b)

Chloroplast

(c)

Chromosome

(d)

Vacuole

Which of the following organisms have a prokaryotic cell?

1

(a)

Cyanobacteria

(b)

Algae

(c)

Fungi

(d)

Amoeba

Which organelle is not found in plant cells?

1

(a)

Mitochondria

(b)

Plastids

(c)

Rough ER

(d)

Centriole

Where are extrinsic proteins found in the cell membrane?

1

(a)

On the outer and inner surface of phospholipid matrix.

Which layer is referred to as cementing layer and why?

1

(a)

Middle lamellae is referred to as cementing layer because it holds the primary cell wall of adjacent cells together.

Which type of endopasmic reticulum has its main functioning in the synthesis of lipid?

1

(a)

Smooth Endoplasmic Reticulum (SER), helps in synthesis of lipid.

Mension a single membrane bound organelle, which is rich in hydrolytic enzymes.

1

(a)

Lysosome.

What is the significance of vacuole in a plant cell?

1

(a)

The vaculole in a plant cell helps to maintain osmotic pressure for turgitity and osmosis. It also stores useful as well as waste substance.

Give the term used for the stacks of thylakoids

1

(a)

Grana or intergrana thylakoides.

Is cell wall permeable, semipermeable or impermeable?

1

(a)

The cell wall is permeable.

What is the main function of smooth endoplasmic reticulum?

1

(a)

Lipid synthesis

Which pigment is responsible for the colour of carrot?

1

(a)

Carotene.