Cell Biology: Mitochondria

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the characteristic of a heterotroph?

Organism that is unicellular

Organism that can produce its own food

Organism that cannot produce its own food (correct)

Organism that has a cell wall

What is unique about the movement of Amoeba?

It uses cilia

It uses flagella

It uses pseudopodia (correct)

It uses vacuoles

What is the function of chloroplasts in Microalgae?

To move

To store food

To synthesize food (correct)

To reproduce

What is the cell wall composition of Microfungi?

Cellulose and Chitin Signup and view all the answers

What is the mode of reproduction in Yeast?

Budding Signup and view all the answers

What is the characteristic of Paramecium?

Is motile Signup and view all the answers

What is the function of vacuoles in Protozoa?

To control osmosis Signup and view all the answers

What is the characteristic of Microalgae?

Is photosynthetic Signup and view all the answers

What is the main function of mitochondria in a cell?

Energy generation Signup and view all the answers

Which organelle is responsible for protein synthesis and transport?

Endoplasmic Reticulum Signup and view all the answers

What is the primary function of lysosomes?

Digestion of cellular waste Signup and view all the answers

What is the function of the Golgi Apparatus in a cell?

Modifying and packaging proteins Signup and view all the answers

Which organelle is surrounded by a double membrane?

Mitochondria Signup and view all the answers

What is the primary function of vacuoles?

Storage of water and nutrients Signup and view all the answers

Which organelle is involved in the digestion of cellular waste and foreign substances?

Lysosomes Signup and view all the answers

Which organelle is responsible for modifying and packaging proteins for secretion?

Golgi Apparatus Signup and view all the answers

What is the main function of the cytoplasm in a cell?

To provide a site for most cellular activity and biochemical reactions Signup and view all the answers

Which type of cell has DNA contained inside a membrane-bound nucleus?

Eukaryotes Signup and view all the answers

What is the role of ribosomes in a cell?

To synthesize proteins through assembly Signup and view all the answers

What is the main difference between prokaryotes and eukaryotes?

The presence of a true nucleus Signup and view all the answers

What is the function of the selectively permeable cell membrane?

To control movement of substances in and out of the cell Signup and view all the answers

Which organelle is responsible for protein synthesis in a cell?

Ribosomes Signup and view all the answers

What is the function of DNA in a cell?

To store information essential for the function and development of the organism Signup and view all the answers

Which type of cell does not have membrane-bound organelles?

Prokaryotes Signup and view all the answers

Study Notes

Cell Organelles

Mitochondria: compact spheres containing DNA and proteins, separated from the cytoplasm by a double membrane, sites of energy generation (ATP molecules) for the cell.
Lysosomes: vesicles/sacs from the Golgi apparatus, containing enzymes for digestion.
Vacuoles: membrane-bound cavities containing liquid, food, or secretions, controlling the movement of substances in and out of the cell.

Cell Types

Prokaryotes: DNA exists 'free' in the cytoplasm, contains no membrane-bound organelles.
Eukaryotes: DNA contained inside a membrane-bound nucleus, contains several membrane-bound organelles.

Microorganisms

Protozoa: no cell wall, motile, exclusively heterotrophic, unicellular or multicellular, reproduction - asexual & sexual.
Microalgae: autotrophs, cell wall - cellulose, chloroplasts - photosynthetic, unicellular, multicellular, filamentous, or colonial, reproduction - asexual & sexual.
Microfungi: cell wall - cellulose or chitin, reproduction - spores (asexual/sexual)/budding, unicellular, multicellular, filamentous, examples - yeast, moulds.

Other

Cytoplasm: the fluid of the cell, occupies most of the cell volume, site of most cellular activity/biochemical reactions.
Ribosomes: large molecules involved in protein synthesis (assembly of amino acids).
Pili: hair-like tubes for the transfer of DNA.
Flagella: responsible for movement.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

This quiz covers the structure and function of mitochondria, including their composition, role in energy generation, and relationship to the cytoplasm. Test your knowledge of these cellular powerhouses!