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21 Cards in this Set

  • Front
  • Back

Photoautotrophs

Perform photosynthesis; use light energy to make carbon compounds.

Chemoautotrophs

Perform chemosynthesis; Uses chemical energy to make carbon compounds.

Chemoheterotrophs

Use organic molecules for both energy and a carbon source.

Photoheterotrophs

Use sunlight for energy, but consume organic compounds as a compound source.

Binary fission

Asexual reproduction in which the cell replicates its DNA and divides in half, producing two identical daughter cells.

Conjugation

A connecting pills forms between 2 cells and genes move from cell to cell. Creates genetic diversity.

Endospore

Thick internal wall that encloses the DNA and some of the cytoplasm. Helps bacteria to survive harsh for many months.

Eubacteria

More abundant kind if bacteria. Mostly heterotrophs. Live in water, land, and animals. Has 2 cell membranes.

Archaebacteria

Have different lipids in cell membrane. Found in harsh, hot salty environments. Acidic hot springs, volcanic vents. Thick mud.

Methanogens

Anaerobic environments. Get energy by changing H2 into CO2 into methane gas (CH4). Swamps, sewage, digestive tracts.

Difference between Eubacteria and Archaebacteria

Archaebacteria lack peptidoglycan. Gram stain will be dark if peptidoglycan is present.

How to identify prokaryotes

Shape, cell wall composition, movement, obtaining energy.

Endomembrane system

Nuclear envelope, endoplasmic reticulum, golgi apparatus, lysosomes,vacuoles, plasma membrane.

Inner membrane of mitochondria

Folds up and where chemical reactions take place.

Peripheral proteins

Bound to the surface of the membrane

Integral proteins

Penetrate hydrophobic core

Transmembrane protein

Integral proteins that span the membrane

Membrane protein function

Transport, enzyme activity, signals, cell regulations, joining, attach to cytoskeleton.

Smooth Endoplasmic Reticulum

Contains various enzymes rhat detoxify, synthesize lipids, and metabolize carbohydrates

Lysosomes

Small organelles that contain enzymes that break down organic compounds and organelles that no longer work into energy. (Autophagy)

Chromatin

Genetic material made of DNA bound to protein.