Characteristics of Life
List two of the six characteristics of living things
1. Cellular Organization
2. Made of chemicals
3. Grow and Develop
4. Respond to surroundings
5. Reproduce
6. Use energy
Which scientist is credited with looking through a microscope and naming what he saw "cells"?
Robert Hooke
Cells are best described as an organism’s
A. parents and other ancestors
B. basic units of structure and function
C. most important source of energy
D. offspring that have not yet been born
B. basic units of structure and function
Which cell part controls what goes into and out of the cell?
Cell membrane
Choose 2 of the following that are a part of the nervous system.
A. Small intestine
B. Brain
C. Spinal Cord
D. Lungs
B. Brain
C. Spinal Cord
What characteristic do ALL living things have?
A. They are made up of many parts.
B. They come from a cell(s).
C. They reproduce sexually.
D. They need carbon dioxide to live.
B. They come from a cell(s).
Cell theory states:
I. All living cells must have a cell wall.
II. All living cells require glucose for survival.
III. The basic unit of life is a cell.
Which of these are true?
III. The basic unit of life is a cell.
What is the correct order of cellular organization from simplest to the most complex?
Cell, Tissue, Organ, Organ System
If a plant cell is shown to have a chloroplast, where would this cell most likely be found?
A. skin
B. frog
C. leaf
D. human
C. Leaf
Some animals have an organ called the gizzard. The gizzard is muscular and helps to crush up hard food. Based on its function, the gizzard is part of which system?
Digestive
Reagan is studying an object to determine whether or not it is a living thing. She found out that the object moves, uses energy, can reproduce, and changes in size.
Which one of these is NOT a characteristic that shows the object must be a living thing?
A. It responds to stimuli
B. It is made of many cells
C. It can reproduce
D. It grows and develops
B. It is made of many cells
Which two of the following are NOT a premise of cell theory?
I. All cells come from pre-existing cells.
II. All living cells require water for survival.
III. All living things are only composed of cells.
II. All living cells require water for survival.
III. All living things are only composed of cells.
What part of organization are the lungs considered?
Organ
Cells in multi-cellular organisms:
A. all have the same shape
B. all have the same function
C. all have specialized functions and jobs
D. are the same size in every part of the organism
C. all have specialized functions and jobs
Nutrient distribution depends on the _______________ system to deliver nutrients to cells around the body through the bloodstream.
Circulatory
Which one of the following statements about non-living things is CORRECT?
A. They need food to grow and develop.
B. They can respond to changes in their environment.
C. They have offspring which are also non-living.
D. They could have come from things that were once alive.
D. They could have come from things that were once alive.
Which of the following is not stated in the cell theory?
A. Cells are the basic unit of structure and function in all living things
B. Animal cells are generally more complex than plant ones
C. All living things are composed of cells
D. All cells are produced from other cells
B. Animal cells are generally more complex than plant ones
Because its structure is more complex,
A. A tissue has a more complex function than an organ
B. A cell has more complex function than a tissue
C. An organ has more complex function than a tissue
D. A cell has a more complex function than an organ
C. An organ has more complex function than a tissue
A student prepared the following list of characteristics about a cellular organelle.
present in animal cells
present in plant cells
the control center of the cell
Which organelle is the student describing?
Nucleus
The endocrine system regulates the body through hormone release. Like the nervous system, what does the endocrine system help maintain?
Homeostasis
List two ways your body maintains homeostasis
Regulating temperature
Keeping balance
Meeting energy need
Maintaining water balance
Managing stress
Fighting disease
What are the two types of microscopes from our notes?
Light microscopes & electron microscopes
What are the two names for cells that are unicellular and multicellular?
Prokaryote and Eukaryote
Which of the following matches a cell’s structure with its function?
A. Square shape of nerve cell to sense and signal pain
B. Doughnut shape of red blood cell to transport oxygen through vessels
C. Elongated (stretched out) shape of muscle cell to help the body fight infections
D. Tail and spear shape front of sperm cell to regulate blood pressure
B. Doughnut shape of red blood cell to transport oxygen through vessels
Your heart is a powerful, fist-shaped muscle that beats 100,000 times a day to power the circulatory system. Which of the following are functions of the circulatory system? Choose the three that apply.
A. Transporting nutrients
B. Bringing oxygen to cells
C. Breaking down nutrients
D. Removing wastes from the body
E. Transporting hormones
A. Transporting nutrients
B. Bringing oxygen to cells
E. Transporting hormones