Cell Theory
First person to observe human cells and
bacteria
Who was Anton van Leeuwenhoek?
DNA Storage in cell; needed to make proteins for the cell.
What is the Nucleus?
Follows holozoic nutrition. It feeds on microorganisms like bacteria, algae, and yeasts. It uses its cilia to sweep the food along with some water into the cell mouth after it falls into the oral groove. The food goes through the cell mouth into the gullet.
Holozoic nutrition: characterized by the internalization (ingestion) and internal processing of liquids or solid food particles.
What is a Paramecium?
Two types of reproduction:
What is Asexual & Sexual?
Involves the division of body cells; how body cells reproduce.
What is mitosis?
Discovered all plants were comprised of cells
Who was Matthias Jakob Schleiden?
They are membranous organelles that contain acidic enzymes (hydrolase enzymes) that serve to digest various macromolecules (e.g. lipids and nucleic acids) in the cell.
What is a lysosome?
Known as "self feeders"- because they are able to make their own food from raw materials and energy. They use light or chemical energy to make food
What are Autotrophs?
List organisms that reproduce asexually
What are bacteria, archaea, many plants, fungi, and certain animals?
Involves the division of gametes.
What is meiosis?
First to observe cells in all samples of animal tissue.
Who was Theodor Schwann?
Described as a space inside the cell that does not contain cytoplasm. It is surrounded by a membrane and filled with a fluid. They store various molecules including enzymes, waste products of the cell, water, and even food material depending on the type of cell.
What is a vacuole?
Known as "other feeders" because they obtain energy from other organisms.
What are Heterotrophs?
List organisms that reproduce sexually
What are fungi, plants & animals?
Two daughter cells (that are diploid) are produced
What is mitosis?
Determined that cells only come from other pre-existing cells.
Who was Rudolf Virchow?
All the other cell organelles are suspended in it. Many of the cell processes (protein synthesis, respiration etc) take place in it. It plays an important role in the movement of various materials around the cell.
What is the cytoplasm?
Process the involves eating--> digestion --> use of nutrients
What is the stages of nutrition?
Binary fission, budding & fragmentation are examples of which type of reproduction...
Binary fission: Single parent cell doubles its DNA, then divides into two cells.
Budding: Small growth on surface of parent breaks off, resulting in the formation of two individuals. ...
Fragmentation: Organisms break into two or more fragments that develop into a new individual.
What is asexual reproduction?
Four daughter cells (that are haploid) are produced
What is meiosis?
The cell theory credited to two German scientist states:
Surrounds the cell membrane and serves to strengthen and protect the cell. Found in fungi, bacteria, and plants.
What is the cell wall?
This organism can consume food such as green algae and amoebas by phagocytosis (engulfing cells) but they are also able to generate energy from sunlight by photosynthesis - which is perhaps the preferred method.
Phagocytosis: process by which a cell uses its plasma membrane to engulf a large particle
What is an Euglena?
Which type of reproduction requires two parents & the offspring show variation...
What is sexual reproduction?
Daughter cells are genetically identical-
Daughter cells are genetically different-
What is mitosis?
What is meiosis?