Cell Introduction

Examine the cell diagram. Which description is alinged with structure E?

• It is the nucleus that contains genetic information for the cell.

• It is the vacuole that stores water and other substances.

• It is the mitochondrion that releases energy once food is broken down.

• It is the cytoplasm that moves the organelles.

Tags

NGSS.MS-LS1-2

A scientist observes that a young plant cell contains cytoplasm. However, as the cell matures, it expands by storing water. Which cell structure helps the plant maintain its shape through the process of cell growth?

• Cell membrane

• Cytoplasm

• Lysosome

• Cell wall

Tags

NGSS.MS-LS1-2

The diagram shows a cell membrane surrounded by nutrients. Which process best describes a way the cell can obtain these nutrients without requiring energy?

• Osmosis

• Diffusion

• Active transport

• Exocytosis

Tags

NGSS.MS-LS2-3

Which of the following are examples of unicellular eukaryotic organisms?

• Amoebas and yeasts

• Mushrooms and leaf cells

• Red blood cells and humans

• Algae and bacteria

Tags

NGSS.MS-LS1-1

Which substances uses energy to pick up specific molecules and carry them across the cell membrane?

• Protein channels

• Carbohydrate chains

• Transport proteins

• Phospholipids

A student examines a cell with organelles J, K, L, and M labeled. Correctly identify the organelles.

• J: Nucleus, K: Centriole, L: Lysosome, M: Cell wall

• J: Nucleus, K: Lysosome, L: Vacuole, M: Cell wall

• J: Nucleus, K: Vacuole, L: Mitochondria, M: Cell membrane

• J: Nucelus, K: Mitochondria, L: Lysosome, M: Cell membrane

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

What are proteins in cells?

• Large organic molecules made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur.

• Helps speed up chemical reactions in cells and living things.

• Energy-rich organic compounds made of carbon, hydrogen, and oxygen.

• Very long organic compounds

Tags

NGSS.MS-LS3-1

Which level of organization is the basic unit of structure and function in humans?

• Tissues

• Cells

• Organs

• Organ system

Tags

NGSS.MS-LS1-2

Study the diagram. Which organelle regulates what enters and leaves the cell?

• W: Golgi body

• X: Cell membrane

• Y: Mitochondrion

• Z: Nucleus

Tags

NGSS.MS-LS1-2

Carlos was studying the cell membrane by using an egg as a model of the cell. He soaked an egg in vinegar for 2 days and measured the circumference. His results are shown in the diagram and table. Which statement best explains why the egg's size increased?

• The egg began to decompose, and bacteria caused the egg to swell.

• A chemical reaction with the vinegar formed gases inside the egg.

• The vinegar caused the surface of the egg to relax, resulting in expansion and swelling.

• The surface of the egg is selectively permeable and allows liquids to diffuse into the egg.

Tags

NGSS.MS-LS1-2