Unit 1 Cells (As level) Biology

Which definition of the magnification of a drawing of a leaf is correct?

• the actual size of an object multiplied by the magnification of the microscope

• he difference in size between an actual object and a drawing of the object

• the increase in size of an object when observed using a microscope

• the size of the drawing of a specimen in comparison to the actual size

Which labelled features identify these cells as eukaryotic?

• W, X and Y

• W and X only

• W only

• X only

Prokaryotic cells have no genetic material

• True

• False

Eukaryotic cells have

• membrane bound organelles

• a nucleus

• cytoplasm

• all of the above

The nucleus is surrounded by a double membrane... what is the name of this double membrane?

• The nuclear envelope

• The nuclear wrapping

• The nuclear parcel

• The nuclear circle

Exchange of materials between the nucleus and the cytoplasm occurs through which part of the nucleus?

• The nuclear pores

• Chromatin

• Nuclear tunnels

• Nuclear reactor

The inner membrane of a mitochondria is highly folded into structures called....

• Cristae

• Matrix

• Zig zag bits

• The mitochondria is the powerhouse of the cell

What do Ribosomes do?

• Site of photosysthesis

• Site of protein synthesis

• Site of Ribonucleic acid

Which part of the cell ultrastructure are you likely to find Ribosomes near?

• Nucleus & Endoplasmic reticulum

• Only the nucleus

• Only the vacuole

• in the corner

The endoplasmic reticulum comes in two varieties

• Long and short

• Smooth and sophisticated

• Rough and smooth

• Rough and ready