Cells and Tissues

The glycocalyx refers to molecules in the plasma membrane that have a carbohydrate chain attached (prefix “glyco-“).

“Exo-” refers to movement from inside to the outside (-cytosis is a suffix that means in reference to cells).

The sodium ion was transported out of the cell with the use of energy in order to set up the sodium concentration gradient. This gradient then allows other molecules to enter the cell along with sodium’s re-entry. This is active (because energy used), but secondary as it occurs as a result of the previous active transport event.

“Osteo” is ancient (?) Greek for bone.

The prefix “lyso-” refers to the ability to dissolve or destroy molecules or cells.

“Integral” refers to being within the cell membrane. The other choices are not even close to being correct.

The terms osseous, glandular and cartilaginous disqualify the other choices.

Tendons and ligaments are dense CT. This is strong as there is a high proportion of fibres.

RNA must have the sugar ribose. Thymine exists in DNA but not RNA, where it is replaced with uracil.

Mitochondria are where ATP molecules are produced from glucose.