Presentation on theme: "The organelle that digests food particles, wastes, cell parts, and foreign invaders 1.Vacuole 2.Lysosome 3.Cytoplasm 4.Ribosome."— Presentation transcript:
The organelle that digests food particles, wastes, cell parts, and foreign invaders 1.Vacuole 2.Lysosome 3.Cytoplasm 4.Ribosome
In plant cells, this stiff wall surrounds the cell membrane, giving the cell a rigid, boxlike shape. 1.Cell Wall 2.Cell Membrane 3.Vacuole 4.Nuclear Envelope
Thin, flexible barrier around a cell, it regulates what enters and leaves the cell 1.Cell Wall 2.Golgi Apparatus 3.Cell Membrane 4.Nucleus
The control center of the cell that directs the cell's activities; it contains the chemical instructions that direct all the cell's activities (DNA) 1.Vacuole 2.Ribosome 3.Cell Membrane 4.Nucleus
Cells that do not have a distinct nucleus are called: 1.Prokaryotic 2.Eukaryotic 3.Multicellular 4.Animal
The jellylike fluid that contains nutrients in a cell is the: 1.Cytoplasm 2.E.R. 3.Golgi Apparatus 4.Lysosome
Small organelles that are responsible for protein synthesis are the: 1.Nucleus 2.Ribosomes 3.Cytoplasm 4.Cell Membrane
The ‘powerhouse’ of the cell that generates the cell’s energy 1.Chloroplast 2.E.R. 3.Golgi Apparatus 4.Mitochondria
The organelle found in both animal and plant cells that is clear but contains dissolved nutrients is the: 1.Centriole 2.Chloroplast 3.Vacuole 4.Cell Membrane
Cells that have internal membranes surrounding specialized organelles are: 1.Bacteria Cells 2.Eukaryotic 3.Prokaryotic 4.Unicellular
Which of the following statements is false 1.All living things are made of cells. 2.Animal cells have a cell membrane and a cell wall. 3.Cells come from other cells. 4.Lysosomes are found only in animal cells.
To enter or leave a cell, substances must pass through 1.A microtubule 2.Golgi apparatus 3.Ribosome 4.Cell Membrane
The pancreas is an organ that creates the protein insulin. Which organelle in a pancreas cell packages insulin to be secreted out of the cell? 1.Golgi apparatus 2.Ribosome 3.Mitochondria 4.Nucleus 5.lysosome
What cell structure makes it possible for the internal environment of a cell to differ from the external environment? 1.Cell wall 2.Cell membrane 3.E.R. 4.cytoplasm
Which of the following are all present in animal cells 1.mitochondria, cell membrane, cell wall, cytoplasm 2.chloroplasts, cytoplasm, vacuole, nucleus 3.nucleus, cell membrane, mitochondria, cytoplasm 4.vacuole, cell membrane, nucleus, mitochondria
Centrioles are present in _____. 1.Animal cells only 2.Plant cells only 3.In both plant and animal cells 4.In neither plant nor animal cells
The 'Scavengers' or 'Digestive bags' of a cell are ____. 1.Chromosomes 2.Centrosomes 3.Lysosomes 4.Ribosomes
The network of endoplasmic reticulum is present in the ____. 1.Nucleus 2.Chromosome 3.Cytoplasm 4.Golgi apparatus
Centrioles are associated with ____________. 1.Digestion 2.Reproduction 3.Respiration 4.Cell division
Bacterial cells are prokaryotic; in comparison to a typical eukaryotic cell they would 1. be smaller. 2.have a smaller nucleus. 3.lack a plasma membrane. 4.have a greater variety of organelles.
Proposed that cells are produced by other cells 1.Robert Hooke 2.Rudolf Virchow 3.Schwann 4.Schleiden
All things are made of cells, -cell is basic unit of life, -new cells come from existing cells 1.Theodor Schwann 2.Robert Hooke 3.cell theory 4.Rudolf Virchow
Discovered that plants are made of cells 1.Theodor Schwann 2.Prokaryotic cells 3.cell theory 4.Matthias Schleidan
A 0.9% NaCl solution is isotonic to red blood cells. Which of these describes the results if red blood cells are placed into a 9% solution of NaCl? 1.They will burst. 2.They will shrink. 3.Nothing will happen. 4.They will expand but not burst. 5.None of the above.
The U-shaped tube in the figure below is divided by a membrane that is impermeable to starch but permeable to water. Which of the following will occur? 1.Water will move from the right to the left. 2. Water will move from the left to the right. 3.Starch will move from the right to the left. 4.Starch will move from the left to the right. 5.Nothing will happen. The membrane blocks the passage of all the molecules.
Where do new cells come from? A. From the lymph glands. B. From preexisting cells C. From food molecules in the digestive tract. D. From the blood
Which process requires a cell to use energy to move materials across its membrane when a concentration difference does not exist? A. active transport B. diffusion C. mitosis D. osmosis
Why must homeostasis be maintained in a cell? A. Water will enter the cell if homeostasis is not maintained. B. Salt will leave the cell if homeostasis is not maintained. C. Wastes, water and nutrients must stay in the correct balance. D. The cell membrane will lose the lipid bi-layer without homeostasis.