Which is true about active transport?

moves substances down the concentration gradient

moves material from high to low concentration

Which way would the purple molecules move through the semi permeable membrane?

None of the purple molecules would move.

What does it mean that a cell membrane is semipermeable?

It allows some substances inside.

It allows all substances inside.

It allows no substances inside.

If there is 5 percent water inside a cell and 5 percent water outside a cell

there will be no net movement of water cells

more water will move inside the cell

more water will move outside the cell

there will be no movement of water

What are the three main parts of a cell?

cell membrane, cytoplasm, and nucleus

ribosomes, lysosomes, peroxisomes

chloroplast, Golgi apparatus, endoplasmic reticulum

cell wall, mitochondria, vacuole

Describe the function of the cell membrane.

Controls the movement of substances in and out of the cell

Regulates the temperature of the cell

Name two types of cell organelles and their functions.

Two types of cell organelles are mitochondria (function: energy production) and chloroplasts (function: photosynthesis).

Golgi apparatus (function: cell respiration)

Endoplasmic reticulum (function: cell division)

Nucleus (function: protein synthesis)

What is the role of enzymes in biological systems?

Enzymes speed up chemical reactions in cells.

Enzymes slow down chemical reactions in cells.

Enzymes have no role in biological systems.

Enzymes are only found in non-living organisms.

Explain the difference between light microscopes and electron microscopes.

Light microscopes use visible light, while electron microscopes use a beam of electrons.

Light microscopes use sound waves, while electron microscopes use visible light.

Light microscopes use infrared light, while electron microscopes use a beam of photons.

Light microscopes use X-rays, while electron microscopes use a beam of protons.

How is the cell structure of a plant cell different from an animal cell?

Plant cells have a cell wall, chloroplasts, and a large central vacuole.

Animal cells have a cell wall, chloroplasts, and a large central vacuole.

Plant cells have a nucleus, mitochondria, and ribosomes.

Plant cells have a flagellum, cilia, and a cell membrane.

List two examples of cell organelles and their specific functions.

1. Mitochondria - produces energy for the cell through cellular respiration. 2. Nucleus - contains the cell's genetic material and controls the cell's activities.

1. Lysosomes - contains the cell's genetic material. 2. Vacuoles - produces energy for the cell.

1. Ribosomes - stores water for the cell. 2. Golgi apparatus - helps the cell maintain its shape.

1. Chloroplasts - controls the cell's activities. 2. Endoplasmic reticulum - produces energy for the cell.

What are the advantages of using electron microscopes over light microscopes?

Higher magnification and resolution

Faster image processing and analysis

Lower cost and easier maintenance

Ability to view living cells in real-time

What is the difference between prokaryotic and eukaryotic cells?

Eukaryotic cells have a nucleus, while prokaryotic cells do not.

Prokaryotic cells have a nucleus, while eukaryotic cells do not.

Prokaryotic cells are larger than eukaryotic cells.

Prokaryotic cells have a cell wall, while eukaryotic cells do not.

What is the mass and charge of an electron?

Mass = almost 0, Charge = negative

What is the mass and charge of an Proton?

Mass = almost 0, Charge = negative

What is the mass and charge of an Neutron?

Mass = almost 0, Charge = negative

substance made of 1 type of atom

2 or more substance not chemically combined

substance made of more than one type of atom chemically joined together

atoms of the same element with different number of neutrons

substance made of more than one type of atom chemically joined together

2 or more substance not chemically combined

substance made of 1 type of atom

atoms of the same element with different number of neutrons

year 9 revision for 1st assessment

Quiz

•

Science

•

8th Grade

•

Practice Problem

•

Hard

M Geiss

Used 1+ times

FREE Resource

99 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Which organelles are found in a plant cell ONLY?

Nucleus

Chloroplast

Cell Wall

Permanent Vacuole

Cytoplasm

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Which organelles are common to plant and animal cells?

cytoplasm

chloroplast

cell membrane

nucleus

ribosomes

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Which organelles are common to both animal AND plant cells?

Permanent vacuole

Cytoplasm

Mitochondria

Cell membrane

Cell Wall

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

The ________ contains the DNA and genes. It controls the cell.

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

The ____________ is a watery jelly. Most of the cells activities happen here.

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

The ________ controls what enters and leaves the cell

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Respiration happens inside the _______________ .

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year 9 revision for 1st assessment

99 questions

Which organelles are found in a plant cell ONLY?

Which organelles are common to plant and animal cells?

Which organelles are common to both animal AND plant cells?

The ________ contains the DNA and genes. It controls the cell.

The ____________ is a watery jelly. Most of the cells activities happen here.

The ________ controls what enters and leaves the cell

Respiration happens inside the _______________ .

Protein synthesis happens on the ______________.

______________ convert sunlight (light energy) into chemical energy (food) that plants can use. This process is called photosynthesis.

The _ __ supports the cell. It is made of cellulose.

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year 9 revision for 1st assessment

99 questions

Which organelles are found in a plant cell ONLY?

Which organelles are common to plant and animal cells?

Which organelles are common to both animal AND plant cells?

The ________ contains the DNA and genes. It controls the cell.

The ____________ is a watery jelly. Most of the cells activities happen here.

The ________ controls what enters and leaves the cell

Respiration happens inside the _______________ .

Protein synthesis happens on the ______________.

______________ convert sunlight (light energy) into chemical energy (food) that plants can use. This process is called photosynthesis.

The _____ ______ supports the cell. It is made of cellulose.

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The _ __ supports the cell. It is made of cellulose.