I LEARN Review

Four categories of complex, highly organized molecular substances are needed for nearly all of the processes that take place in organisms. Which of the following correctly identifies these four categories of substances?

• lipids, proteins, water, nucleic acids

• carbohydrates, lipids, proteins, nucleic acids

• lipids, proteins, enzymes, nucleic acids

• carbohydrates, enzymes, nucleotides, amino acids

Which of the following is NOT true about enzymes?

• Enzymes are proteins.

• Enzymes decrease the activation energy of chemical reactions.

• Enzymes work well at any temperature.

• The shape & function of an enzyme can be affected by temperature, pH, and salinity.

Which of the following correctly matches the macromolecule with its function?

• Proteins: build parts of a cell and & speed up chemical reactions

• Carbohydrate: long term energy storage

• Nucleic Acids: short term energy storage

• Lipids: structure & support & genetic information

Tags

NGSS.MS-LS1-7

What is it called when molecules move across the cell membrane from an area of high concentration to an area of low concentration?

• Diffusion

• Active Transport

• Osmosis

• Facilitated Diffusion

hat is it called when molecules move across the cell membrane from an area of high concentration to an area of low concentration through a carrier protein?

• Facilitated Diffusion

• Active transport

• Osmosis

• Diffusion

This cell organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells.

• Cell membrane

• Cytoplasm

• Mitochondria

• Nucleus

Tags

NGSS.HS-LS1-3

What is the correct hierarchy of cells?

• tissues-cells-organ systems-organs-organisms

• organs-tissues-cells-organ systems-organisms

• cell-organisms-tissues-organs-organ systems

• cells-tissues-organs-organ systems-organisms

Tags

NGSS.HS-LS1-2

Which of the following organelles is NOT involved in protein synthesis?

• Nucleus

• Rough ER

• Ribosome

• Lysosome

This process releases chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present.

• photosynthesis

• cellular respiration

• light dependent reaction

• light independent reaction

Tags

NGSS.HS-LS1-7

In the energy pyramid , which organism has the least amount of energy available?

• Producers

• Primary consumers

• secondary consumers

• tertiary consumers

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-4