Cell Histology & Tissue Structure

Cell histology is the study of the microscopic structure of cells and tissues in both plants and animals. (True or False) ******

True

Which of the following is not a part of a typical cell? *****

Tissue

Cells group together to form what?

Tissue

What’s the structure that surrounds a cell, separates its inside from the outside, and is made up of a lipid bilayer?

Cell Membrane

What’s the gel-like material that fills the inside of the cell?*****

Cytoplasm

Which organelle makes proteins and can float freely in the cytoplasm or attach to other structures?******

Ribosomes

Which organelle is known as the “powerhouse” of the cell because it turns oxygen and nutrients into usable energy?*****

Mitochondria

Which part of the cell stores proteins that will later be used to make enzymes and hormones?

Golgi Apparatus

When a cell dies, which organelle releases enzymes that break down the cell membrane and trigger apoptosis (cell death)?

Lysosomes

What organelle can isolate or trap materials that might be harmful to the cell?

Vacuoles

The nucleus acts like the command center—or “brain”—of the cell, controlling many important functions. (True or False)****

True

A chemical messenger must find the correct receptor site to communicate with the cell. (True or False)****

True

Which type of muscle is found in the walls of organs and blood vessels?****

Smooth

DNA is located in the cytoplasm of the cell. (True or False)******

False

Which of the following is not one of the four main types of tissue?

Cardiac

The smooth endoplasmic reticulum has ribosomes attached to it. (True or False)****

False

Cells are usually too small to see without using a microscope. (True or False)****

True

What is the final stage of the cell cycle called?*****

Cytokinesis

Mitosis is the process by which a cell divides its nucleus and DNA to create two identical new cells. (True or False)*****

True

Apoptosis refers to programmed cell death. (True or False)

True

Connective cells cover body surfaces and line organs and body cavities. (True or False)*****

False

Collagen and elastin fibers are found in which type of tissue?

Connective

Which tissue type is made of myocytes that are specialized for movement and contraction?

Muscular

Which type of muscle is under voluntary control?

Skeletal

_____ are specialized cells that send electrical impulses and allow communication throughout the body.

Neurons