Science benchmark review

Which organelle is the control center of the cell?

• Ribosomes

• Cell Membrane

• Nucleus

• Chloroplasts

What is the jelly like substance that contains the organelles?

• Endoplasmic Rticulum (ER)

• Lysosomes

• Cytoplasm

• Nucleolus

These blood vessels take oxygenated blood to the body cells.

• heart

• vein

• artery

• capillary

Organisms whose cells do not have a nucleus are called _____.

• Eukaryotes

• Unicellular

• Multicellular

• Prokaryotes

4. Why would some cells contain more mitochondria than others?

• They wouldn't; all cells contain the same amount of mitochondria

• They are bigger

• They require more energy

• They need more oxygen

An animal cell has the following except a/an...

• Endoplasmic reticulum

• Cell Wall

• Lysosome

• Nucleus

What is the main function of chloroplast?

• Mitosis

• Translation

• Meiosis

• Photosynthesis

What is the main function of the excretory system?

• to collect and remove wastes from the body

• to protect the nervous system

• to strengthen skeletal muscles

• to bring oxygen to body cells

A group of similar cells that work together to perform a particular function is a/an __________________.

• organ system

• organism

• organ

• tissue

What term do scientists use to describe the chemical process in which oxygen and glucose react to release energy inside body cells?

• respiration

• breathing

• exhaling

• inhaling