Cell Biology Objectives Worksheet

Identify the main parts of a typical cell from the options below.

• Nucleus, cytoplasm, cell membrane

• Chloroplast, mitochondria, cell wall

• Ribosome, vacuole, flagella

• Golgi apparatus, lysosome, centriole

The role of the nucleus in a typical cell is to:

• Control the cell's activities and store genetic information.

• Provide energy for the cell through respiration.

• Regulate the movement of substances in and out of the cell.

• Synthesize proteins for the cell.

The main organelles of the cell and their functions are:

• Nucleus controls cell activities, mitochondria produce energy, ribosomes synthesize proteins, and the endoplasmic reticulum transports materials.

• Nucleus digests food, mitochondria store water, ribosomes break down waste, and the endoplasmic reticulum produces hormones.

• Nucleus stores fat, mitochondria create DNA, ribosomes transport oxygen, and the endoplasmic reticulum stores calcium.

• Nucleus produces energy, mitochondria control cell activities, ribosomes store nutrients, and the endoplasmic reticulum digests food.

The components of the cell membrane are:

• Phospholipids, proteins, and carbohydrates

• Nucleus, mitochondria, and ribosomes

• DNA, RNA, and cytoplasm

• Cell wall, chloroplast, and vacuole

Active and passive movements of substances across a cell membrane involve which of the following processes?

• Active transport requires energy, while passive transport does not.

• Both active and passive transport require energy.

• Passive transport moves substances against the concentration gradient.

• Active transport only occurs in plant cells.

Tonicity is defined as the ability of a solution to cause a cell to gain or lose water. Which of the following correctly compares isotonic, hypotonic, and hypertonic solutions?

• Isotonic solutions have equal solute concentration as the cell, hypotonic solutions have lower solute concentration, and hypertonic solutions have higher solute concentration.

• Isotonic solutions have higher solute concentration than the cell, hypotonic solutions have equal solute concentration, and hypertonic solutions have lower solute concentration.

• Isotonic solutions have lower solute concentration than the cell, hypotonic solutions have higher solute concentration, and hypertonic solutions have equal solute concentration.

• Isotonic solutions have higher solute concentration than the cell, hypotonic solutions have lower solute concentration, and hypertonic solutions have equal solute concentration.

The phases of the cell cycle, including mitosis, are:

• G1, S, G2, M

• Prophase, Metaphase, Anaphase, Telophase, Cytokinesis

• Interphase, Prophase, Metaphase, Anaphase, Telophase

• G1, G2, S, C

Cell differentiation refers to:

• The process by which cells become specialized for specific functions.

• The division of cells to produce identical daughter cells.

• The movement of cells from one part of the body to another.

• The destruction of old or damaged cells.

Uncontrolled and disorganized cell growth and apoptosis can lead to which of the following consequences?

• Development of tumors and cancer

• Improved tissue repair

• Enhanced immune response

• Decreased cell division

What is the structural and functional unit of all living matter?

• Atom

• Cell

• Tissue

• Organ