Grade 7 Cells and Organization Practice Test

Correct answer: A

The correct answer is The movement of particles from an area of higher concentration to an area of lower concentration.

1. Identify the cell concept: Determine whether the question asks about cell theory, an organelle, a cell type, transport, microscopy, or levels of organization.
2. Match structure and function: Diffusion is passive movement down a concentration gradient until particles become more evenly distributed.
3. Check the evidence: Use the described structure, process, or observation to select the scientifically supported answer.

Correct answer: B

The correct answer is The diffusion of water across a selectively permeable membrane.

1. Identify the cell concept: Determine whether the question asks about cell theory, an organelle, a cell type, transport, microscopy, or levels of organization.
2. Match structure and function: Osmosis is the movement of water through a selectively permeable membrane.
3. Check the evidence: Use the described structure, process, or observation to select the scientifically supported answer.

Correct answer: C

The correct answer is When a cell moves substances against a concentration gradient using energy.

1. Identify the cell concept: Determine whether the question asks about cell theory, an organelle, a cell type, transport, microscopy, or levels of organization.
2. Match structure and function: Active transport requires cellular energy because substances move from lower to higher concentration or in another energy-requiring direction.
3. Check the evidence: Use the described structure, process, or observation to select the scientifically supported answer.

Correct answer: D

The correct answer is The membrane allows some substances to cross more easily than others..

1. Identify the cell concept: Determine whether the question asks about cell theory, an organelle, a cell type, transport, microscopy, or levels of organization.
2. Match structure and function: A selectively permeable membrane controls movement rather than allowing all substances to cross equally.
3. Check the evidence: Use the described structure, process, or observation to select the scientifically supported answer.

Correct answer: A

The correct answer is A difference in the amount of a substance between two areas.

1. Identify the cell concept: Determine whether the question asks about cell theory, an organelle, a cell type, transport, microscopy, or levels of organization.
2. Match structure and function: A concentration gradient is the difference that can drive diffusion or require active transport.
3. Check the evidence: Use the described structure, process, or observation to select the scientifically supported answer.

Correct answer: B

The correct answer is A process in which a cell membrane surrounds material and brings it into the cell.

1. Identify the cell concept: Determine whether the question asks about cell theory, an organelle, a cell type, transport, microscopy, or levels of organization.
2. Match structure and function: During endocytosis, the membrane folds around material and forms a vesicle inside the cell.
3. Check the evidence: Use the described structure, process, or observation to select the scientifically supported answer.

Correct answer: C

The correct answer is A process in which a vesicle fuses with the membrane and releases material outside the cell.

1. Identify the cell concept: Determine whether the question asks about cell theory, an organelle, a cell type, transport, microscopy, or levels of organization.
2. Match structure and function: Exocytosis transports materials out of a cell when a vesicle joins the cell membrane.
3. Check the evidence: Use the described structure, process, or observation to select the scientifically supported answer.

Correct answer: D

The correct answer is It helps the cell keep internal conditions within a useful range..

1. Identify the cell concept: Determine whether the question asks about cell theory, an organelle, a cell type, transport, microscopy, or levels of organization.
2. Match structure and function: Regulated movement of water, nutrients, gases, and wastes helps keep the cell environment stable.
3. Check the evidence: Use the described structure, process, or observation to select the scientifically supported answer.

Correct answer: A

The correct answer is To transfer energy from food into a form the cell can use.

1. Identify the cell concept: Determine whether the question asks about cell theory, an organelle, a cell type, transport, microscopy, or levels of organization.
2. Match structure and function: Cellular respiration breaks down food molecules and transfers energy into ATP and other usable forms.
3. Check the evidence: Use the described structure, process, or observation to select the scientifically supported answer.

Correct answer: B

The correct answer is To use light energy to make sugar from carbon dioxide and water.

1. Identify the cell concept: Determine whether the question asks about cell theory, an organelle, a cell type, transport, microscopy, or levels of organization.
2. Match structure and function: Photosynthesis stores light energy in chemical energy within sugar molecules.
3. Check the evidence: Use the described structure, process, or observation to select the scientifically supported answer.