science grade 6 fall review
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- Which help form cell walls and membranes; provide energy.... carbohydrates, lipids or proteins?
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carbohydrates
example: sugars -
Which help form cell membranes....
carbohydrates, lipids, or proteins? -
lipids
example: fats - Which help form cell membranes and organelles; speed up chemical reactions... lipids, atoms, proteins
-
protein
example: enzymes - What directs ll the cell's functions; production of proteins....sugars, DNA, nucleic acids, or carbohydrates?
- DNA
- Most compounds that contain carbon are (which) organic or inorganic compounds?
- organic compounds
- A type of nucleic acid that plays an important role in the production of proteins is called _____
- RNA
- Compounds that do NOT contain the element carbon are called (which) organic or inorganic compounds?
- inorganic compounds
- A type of nucleic acid that passes form parent to offspring and direct all the cell's functions is called............?
- DNA
- Very large organic molecules made of carbon, hydrogen, oxygen, nitrogen, and phosphorus are called........?
- nucleic acids
- Large organic molecules made up of carbon, hydrogen, oxygen, nitrogen, and, in some cases, sulfur are called.............?
- proteins
- What is the smallest unit of most compounds?
- molecule
- What are small molecules that make up proteins?
- amino acids
- What is the chemical combination of two or more elements?
- compound
- Which type of protein speeds up chemical reactions in living things?
- enzyme
- What is the smallest unit of an element?
- atom
- Any substance that CANNOT be broken down into simpler substance is called?
- element
- When two parents combine their genetic material to produce a new organism that differs from both parents it is called .....?
- sexual reproduction
- When one bacterium divides to form two identical bacteria cells it is called ..........?
- binary fission
- What is a small, thick-walled resting cell that forms inside a bacterial cell?
- endospore
- What is the region inside the cell membrane called?
- cytoplasm