L1: Structure and Function of Cells
The "building blocks" of life
A tiny cell structures that carry out a function inside the cell.
Organelles
A "balanced" internal environment in cells
Homeostasis
What does DNA stand for?
(must be spelled correctly)
Deoxyribonucleic Acid
Nearly all living organisms obtain energy either directly or indirectly from the ________.
SUN
These organisms can't make their own food; they eat other organisms.
Heterotrophs
An example of a prokaryotic cell
Amoeba, bacteria, yeast, paramecium
Are there more tissues or cells inside an organism?
Cells
The movement of particles from a HIGH to a LOW concentration
Diffusion
What are the 3 stages of Cell Division?
1. Interphase
2. Mitosis
3. Cytokinesis
Plants make this during photosynthesis. Also called "sugar" or "carbohydrates" or "C6H12O6".
Glucose
The 2 organelles that cellular respiration occurs...
Cells 3 main functions are...
1. Bringing in nutrients and water
2. Obtain (get) energy
3. Getting rid of waste
This organelle gives protection and support to the cell.
Cell wall
A form of passive transport: the diffusion of water molecules across a selectively permeable membrane.
Osmosis
This form or shape of DNA is condensed; ½ of the X
Chromatids
During Photosynthesis, CO2 enters the plant through a small opening called the ______________.
stomata
True of false
Cellular respiration only occurs in heterotrophs
False; it also occurs in BOTH autotrophs and heterotrophs
Humans, animals, insects, etc...
This organelle is the "powerhouse" of the cell
Mitochondria
The passive movement of material through a protein channel in the cell membrane.
Facilitated Diffusion
This phase of mitosis, the centrioles send spindle fibers that pull the chromatids apart.
Anaphase
What is the product of the first stage of Photosynthesis?
O2 (oxygen)
During this stage, LARGE amounts of energy are released in the Mitochondria.
Stage 2
The 3 parts of the Cell Theory are...
1. All living things are made of cells
2. Cells are the basic units of structure and function in living things
3. All cells came from cells
This organelle converts light energy into chemical energy by photosynthesis.
Chloroplast
Movement of particles from a
LOW to a HIGH concentration.
Endocytosis is an example of this kind of cell transport?
Active Transport
During what stage is DNA replicated (identical copy made)?
Interphase
___________ is a green pigment that absorbs light.
Chlorophyll
______ _______ is the end product after running really hard. Lots of energy is released. Causes the "burn" in our muscles.
Lactic acid