Cells and Organisation questions

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Cells and Organisation question collection

Review Cells and Organisation questions for Biology, with correct answers shown and coverage across animal and plant cell structures; specialised cells and their functions; tissues, organs and organ systems.

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Question 1

Which cell structure contains genetic material and controls cell activities?
  1. Nucleus
  2. Cytoplasm
  3. Cell membrane
  4. Mitochondrion

Question 2

In most animal and plant cells, where does aerobic respiration release energy?
  1. Mitochondria
  2. Ribosomes
  3. Nucleus
  4. Cell wall

Question 3

Which organelle contains chlorophyll for photosynthesis?
  1. Chloroplast
  2. Mitochondrion
  3. Nucleus
  4. Vacuole

Question 4

Which plant cell structure is made of cellulose?
  1. Cell wall
  2. Cell membrane
  3. Cytoplasm
  4. Nucleus

Question 5

What is the main function of the cell membrane?
  1. Control substances entering and leaving
  2. Release energy by aerobic respiration
  3. Build proteins from amino acids
  4. Store genetic information

Question 6

Which structure is found in both animal cells and plant cells?
  1. Cytoplasm
  2. Cell wall
  3. Chloroplast
  4. Large permanent vacuole

Question 7

What is a group of similar cells working together called?
  1. Tissue
  2. System
  3. Organism
  4. Organelle

Question 8

How is the stomach best described?
  1. As an organ
  2. As a tissue
  3. As an organ system
  4. As an organelle

Question 9

The mouth, oesophagus, stomach and intestines are part of which organ system?
  1. Digestive system
  2. Respiratory system
  3. Circulatory system
  4. Nervous system

Question 10

Which statement describes diffusion?
  1. Particles spread from high to low concentration
  2. Particles move from low to high concentration
  3. Water crosses a partially permeable membrane
  4. Cells use energy to move particles

Question 11

When will oxygen diffuse into a cell?
  1. When its concentration is higher outside
  2. When its concentration is higher inside
  3. When concentrations are equal
  4. When the cell has no membrane

Question 12

What is a main function of cytoplasm?
  1. Site of many chemical reactions
  2. Storage of genetic information
  3. Control of substances entering the cell
  4. Absorption of light for photosynthesis

Question 13

What does a plant cell's permanent vacuole contain?
  1. Cell sap
  2. Chlorophyll
  3. Genetic material
  4. Cellulose fibres

Question 14

A microscope image is \(30\,\mathrm{mm}\) and the real object is \(3\,\mathrm{mm}\). What is the magnification?
  1. \(10\times\)
  2. \(0.1\times\)
  3. \(90\times\)
  4. \(27\times\)

Question 15

An eyepiece lens is \(10\times\) and an objective lens is \(40\times\). What is the total magnification?
  1. \(400\times\)
  2. \(50\times\)
  3. \(4\times\)
  4. \(4000\times\)

Question 16

Which plant tissue transports dissolved sugars around the plant?
  1. Phloem
  2. Xylem
  3. Epidermis
  4. Palisade mesophyll

Question 17

Which structure is present in plant cells but not animal cells?
  1. Chloroplast
  2. Cell membrane
  3. Cytoplasm
  4. Nucleus

Question 18

How does a flagellum help a unicellular organism?
  1. It enables movement
  2. It absorbs light
  3. It stores genetic material
  4. It builds a cell wall

Question 19

What is an organ system?
  1. A group of organs working together
  2. A group of similar cells
  3. A group of identical tissues
  4. One organ carrying out one function

Question 20

What is an organ?
  1. Different tissues working together
  2. Similar cells working together
  3. Different organs working together
  4. Structures working inside one cell

Question 21

What is the main function of a red blood cell?
  1. Transporting oxygen
  2. Destroying pathogens
  3. Making hormones
  4. Digesting food

Question 22

Why do muscle cells contain many mitochondria?
  1. Release energy for contraction
  2. Store oxygen for transport
  3. Make contractile protein fibres
  4. Carry impulses from motor neurones

Question 23

What does microscope magnification describe?
  1. Image size divided by actual size
  2. Ability to distinguish close points
  3. Width visible through the eyepiece
  4. Number of pixels in a digital image

Question 24

What is resolution in microscopy?
  1. Ability to distinguish two close points
  2. Image size divided by actual size
  3. Width visible through the eyepiece
  4. Amount of light reaching the specimen

Question 25

Which cell structure makes proteins?
  1. Ribosome
  2. Mitochondrion
  3. Nucleus
  4. Cell membrane

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Review Cells and Organisation questions for Biology, with correct answers shown and coverage across animal and plant cell structures; specialised cells and their functions; tissues, organs and organ systems.

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