Basic Theory Test - Cell

Which statements are TRUE about lysosomes?

(i) Contain hydrolytic enzymes

(ii) Involved in autophagy

(iii) Involved in protein synthesis

(iv) Act as a digestive organelle

(v) Found only in plant cells

• (i), (ii), (iii)

• (i), (ii), (iv)

• (i), (iii), (v)

• (ii), (iv), (v)

• All of them

Which organelles are directly involved in protein synthesis?

(i) Nucleus

(ii) Ribosomes

(iii) Mitochondria

(iv) Golgi apparatus

(v) Rough Endoplasmic Reticulum

• (i), (ii), (iv)

• (ii), (iv), (v)

• (i), (ii), (v)

• (i), (iv), (v)

• (ii), (iii), (v)

The CORRECT pair of the organelle with its main function is ...

• Nucleolus:

  controls the cell's activity

  ---

  ER:

  substance modification

• Golgi apparatus: carbohydrate synthesis

  ---

  Lysosome:

  cell respiration

• Centriole:

  cell division

  ---

  Vacuole:

  oxygen concentration

• Ribosome: protein synthesis

  ---

  Mitochondria:

  ATP production

• Smooth ER: protein synthesis

  ---

  Rough ER:

  lipid synthesis

The CORRECT pairs of the organelles with their structural characteristics are ...

• Mitochondria:

  double membrane with cristae

• Chloroplast:

  contains DNA and is surrounded by plasmodesmata

• Rough ER:

  studded with ribosomes

• Nucleus:

  Double nuclear membrane with pores

• Cell wall:

  rigid and connected by lumen

Statements below are TRUE about the cell membrane

• Phospholipid bilayer is a structure of the membrane that consists of phosphate and lipid

• Cell membrane can protect the cell from the environment because it contains cellulose

• Bonds between phosphate and lipid structures will perform the fluid mosaic model

• Cell membrane has the flexibility to certain pressures

• Integral proteins can be found on the surface of the cell membrane

When a piece of potato is placed in a concentrated salt solution, the potato cells shrink.

This phenomenon is called

• Turgid

• Plasmolysis

• Crenation

• Lysis

• Isotonic

Which statements are CORRECT about osmosis:

(i) Water moves from a hypotonic to a hypertonic solution.

(ii) It requires energy in the form of ATP.

(iii) It requires a semipermeable membrane.

(iv) It can cause animal cells to undergo lysis.

(v) It only occurs in plant cells.

• (i) and (iii)

• (i), (ii), (iii)

• (ii) and (v)

• (ii), (iii), (v)

• (i), (iii), (iv)

Which statement is TRUE about Ion Transport?

• In the process, ADP will give one phosphate to open the ion pumps.

• Always uses integral proteins as the ion pumps.

• Always requires ATP to move the ion pumps into certain positions.

• Occurs when there is an imbalance in Na+ and K+ concentrations inside the cell.

• It requires vesicles that are formed by the Golgi apparatus.

The main purpose of mitosis is

• To form gametes

• To produce two identical cells with the same chromosomes

• To increase genetic variation

• To reduce chromosome number by half

• To form 4 new daughter cells

Which is the CORRECT pair of mitosis stages with their main events

• Telophase:

  the cell prepares to perform mitosis

• Anaphase:

  chromatins begin to condense into chromosomes

• Metaphase: chromosomes align at the equator

• Prophase:

  chromosomes move to opposite poles

• Interphase:

  the nuclear membrane reforms