Module 4 Practice Cells and Life

Which type of molecule forms structures in cells and can store energy along with protein?

• lipid

• nucleic acid

• protein

• water

Which of these is a group of organs that work together and perform one or more major functions?

• organelle

• molecule

• organ system

• tissue

Which of the following levels is lower than cells in the hierarchy of organization of living things?

• molecules

• organs

• organ systems

• tissues

Based on the cell theory, which of the following is true?

• All cells perform the same function.

• All cells are the same sized and shape.

• Cells vary in size depending on the size of the organism, and can have 1 or many cells.

Matthias Schleidan observed plant leaves under a microscope. How did this help contribute to cell theory?

• It helped to show that all plants are made of cells

• It helped to show that all plants are made of chloroplast.

• It helped to show that plant cells can be created from soil.

• It helped to show that plants cells cannot function independently

A scientist observed the formation of hundreds of maggots and many flies on a rotting meat slice exposed to the environment. What most likely formed the maggots?

• Water vapor present in the surrounding air

• Eggs of the flies in the surroundings

• Nutrient crystals in the meat

• Oxygen in the environment

Which of these is likely to be true about a scientific theory?

• It can never be changed or replaced.

• It is supported by exactly one true hypothesis.

• It is accepted by a large scientific community.

• It is a random guess about how something happened.

The organelle that captures sunlight and helps in food synthesis is the (a)   .

What would happen in the absence of a cell membrane is substances will pass in and out of the cell in an uncontrolled manner. ? True or False

• True

• False

In a cell membrane photosynthesis will take place.

True or False

• True

• False