Vacuole a sac - Study guides, Class notes & Summaries

KSU Biology 198 Exam 3 Questions With 100% Correct Answers When viewing with a(n) ____ microscope, organisms can be alive or dead, you can see larger structures, and the color of the organisms. - answerlight When viewing with a(n) _________ microscope, organisms must be dead, but you can view very small things such as ribosomes and protein as well as the texture of organisms. - answerelectron The __________ states that all cells come from pre-exisisting cells, are the smallest unit of lif...

Actin A globular protein that links into chains, two of which twist helically about each other, forming microfilaments (actin filaments) in muscle and other kinds of cells. Active transport The movement of a substance across a cell membrane, with an expenditure of energy, against its concentration or electrochemical gradient; mediated by specific transport proteins. Adenosine triphosphate (ATP) An adenine-containing nucleoside triphosphate that releases free energy when its phosphate bonds are...

Cell and Nuclei Structure Practice Test| Latest Questions and Answers| A level **cytoplasm** The jelly-like substance that fills the inside of the cell, providing a medium for chemical reactions to occur and holding organelles in place. **mitochondria** The powerhouse of the cell, responsible for converting nutrients into ATP energy through cellular respiration. **cell membrane** A selectively permeable barrier that surrounds the cell, controlling the movement of substances in a...

Cell theory idea that all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells Endosymbiotic theory eukaryotes may have been a product of one cell engulfing another, one living within another, and evolving over time until the separate cells were no longer recognizable Evidence of endosymbiotic theory eukaryotes consumed prokaryotes (leading to mitochondria), or eukaryote consumed photosynthetic...

TOPIC 2.1 Cell Structure: Subcellular Components Correct Answer ENDURING UNDERSTANDING: Living systems are organized in a hierarchy of structural levels that interact. LEARNING OBJECTIVE SYI-1.D Describe the structure and/ or function of subcellular components and organelles. ESSENTIAL KNOWLEDGE SYI-1.D.1 Ribosomes comprise ribosomal RNA (rRNA) and protein. Ribosomes synthesize protein according to mRNA sequence. SYI-1.D.2 Ribosomes are found in all forms of life, reflecting the common ...

Centrosome - ans ----Central microtubule organized center of cells. In animal cells, it contains two centrioles. Actin Filament - ans ----Component of the cytoskeleton; plays a role in the movement of the cell and its organelles; a protein filament in a sarcomere of a muscle, its movement shortens the sarcomere, yielding muscle contraction Bacillus - ans ----A rod-shaped bacterium; also a genus of bacteria Capsule - ans ----A form of glycocalyx that consists of a gelati...

Exocytosis - correct answer release of substances out a cell by the fusion of a vesicle with the membrane. Endocytosis - correct answer Uptake of materials into the cell Endocytosis: Pinocytosis - correct answer "Cell drinking" Endocytosis: Phagocytosis - correct answer "Cell eating" Cell Membrane "Plasma Membrane" - correct answer Surrounds the cell Composed of phospholipid & protein Semi-permable - correct answer provides a selective barrier that regulates transport...

National 5 Biology - Unit 1 End of Unit Test What word is used to describe a plant cell when it is placed in a solution of lower water concentration. ️️Plasmolysed What do you call a plant cell that has been placed in a solution of higher water concentration? ️️Turgid What happens to an animal cell when it is placed in a solution of higher water concentration? ️️Burst - because they have no cell wall to maintain the structure. What kind of solution makes an animal cell ...

Basics of protons, neutrons and electrons Electrons are negligible mass and are not in the nucleus with a - charge Neutrons have no charge and are in the nucleus with the protons who have a + charge. Atomic Number Vs. Mass number or atomic Mass Atomic number is the number of protons in the nucleus and Atomic mass or mass number is the number of protons and neutrons Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:00 F...

Actin - correct answer a globular protein that links into chains, twist to form microfilaments in muscle cells Active Transport - correct answer the movement of a substance across a cell membrane against the concentration gradient, requires energy Anion - correct answer a negatively charged ion Archaea - correct answer ...