Cells Quiz

Front

Eukaryotic cells

Back

Have a nucleus

Answer explanation

Eukaryotic cells are characterized by having a nucleus, which contains their genetic material. This distinguishes them from prokaryotic cells, which lack a nucleus. They can be found in plants, animals, and fungi, not just in one type.

Front

Organelles in cells

Back

Tiny structures performing specific functions

Answer explanation

Organelles are tiny structures within cells that carry out specific functions, such as energy production and protein synthesis, making the correct choice "Are tiny cellular structures that perform specific functions within a cell."

Front

Cell membrane function

Back

Controls movement of materials in/out

Answer explanation

The cell membrane is crucial for all cells, as it regulates the entry and exit of substances, maintaining homeostasis. The other options are incorrect because the membrane is present in all cell types and is not a hard shell.

Front

Multi-celled organisms: Cell functions

Back

Different types of cells perform different functions

Answer explanation

In multi-celled organisms, different types of cells have specialized functions, allowing them to work together efficiently. This specialization is crucial for the organism's overall function and survival.

Front

Difference between plant and animal cells

Back

Plant cells have chloroplasts

Answer explanation

Plant cells have chloroplasts, which are essential for photosynthesis, while animal cells do not. This is a key difference between the two cell types.

Front

Fluid inside cell membrane

Back

Cytoplasm

Answer explanation

The correct answer is Cytoplasm, which refers to the fluid inside the cell membrane. Plasma is a component of blood, 'goo' is not a scientific term, and 'water' is too general. Cytoplasm contains organelles and is essential for cellular functions.

Front

Powerhouse of the cell

Back

Mitochondria

Answer explanation

The mitochondria are known as the powerhouse of the cell because they generate ATP, the energy currency of the cell, through cellular respiration. This makes them essential for energy production.

Front

Directs cell activities

Back

Nucleus

Answer explanation

The nucleus directs all cell activities by housing the DNA, which contains the instructions for cellular functions. Other organelles like lysosomes, ribosomes, and mitochondria have specific roles but do not control cell activities.

Front

Photosynthesis location in plant cell

Back

Chloroplast

Answer explanation

Photosynthesis occurs in the chloroplasts of plant cells, where sunlight is converted into chemical energy. The nucleus, mitochondria, and ribosomes do not perform this function.

Front

Cell type with nucleus

Back

Eukaryotic

Answer explanation

Eukaryotic cells have a nucleus, which contains their genetic material. In contrast, prokaryotic cells lack a nucleus, as their DNA is not enclosed within a membrane. Therefore, the correct answer is eukaryotic.